./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix013.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix013.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN --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 7d5aa429e9fa5fafdbda3a249edb2f84a5af4e6e0b36ce720714921f621bb137 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:12:34,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:12:34,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:12:34,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:12:34,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:12:34,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:12:34,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:12:34,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:12:34,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:12:34,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:12:34,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:12:34,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:12:34,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:12:34,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:12:34,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:12:34,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:12:34,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:12:34,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:12:34,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:12:34,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:12:34,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:12:34,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:12:34,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:12:34,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:12:35,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:12:35,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:12:35,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:12:35,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:12:35,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:12:35,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:12:35,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:12:35,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:12:35,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:12:35,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:12:35,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:12:35,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:12:35,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:12:35,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:12:35,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:12:35,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:12:35,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:12:35,023 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 12:12:35,062 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:12:35,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:12:35,063 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:12:35,063 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:12:35,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:12:35,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:12:35,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:12:35,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:12:35,065 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:12:35,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:12:35,067 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:12:35,067 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:12:35,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:12:35,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:12:35,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:12:35,068 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 12:12:35,068 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 12:12:35,069 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 12:12:35,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:12:35,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:12:35,069 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:12:35,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:12:35,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:12:35,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:12:35,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:12:35,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:12:35,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:12:35,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:12:35,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:12:35,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:12:35,073 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d5aa429e9fa5fafdbda3a249edb2f84a5af4e6e0b36ce720714921f621bb137 [2022-11-20 12:12:35,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:12:35,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:12:35,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:12:35,415 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:12:35,415 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:12:35,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/mix013.opt.i [2022-11-20 12:12:38,314 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:12:38,628 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:12:38,629 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/sv-benchmarks/c/pthread-wmm/mix013.opt.i [2022-11-20 12:12:38,642 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/data/83efe960e/c60219f7638244a98ede622941c730cc/FLAGc2fa04a2c [2022-11-20 12:12:38,656 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/data/83efe960e/c60219f7638244a98ede622941c730cc [2022-11-20 12:12:38,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:12:38,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:12:38,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:12:38,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:12:38,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:12:38,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:12:38" (1/1) ... [2022-11-20 12:12:38,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d9c358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:38, skipping insertion in model container [2022-11-20 12:12:38,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:12:38" (1/1) ... [2022-11-20 12:12:38,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:12:38,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:12:38,957 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/sv-benchmarks/c/pthread-wmm/mix013.opt.i[944,957] [2022-11-20 12:12:39,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:12:39,167 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:12:39,182 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/sv-benchmarks/c/pthread-wmm/mix013.opt.i[944,957] [2022-11-20 12:12:39,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:12:39,326 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:12:39,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:39 WrapperNode [2022-11-20 12:12:39,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:12:39,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:12:39,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:12:39,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:12:39,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:39" (1/1) ... [2022-11-20 12:12:39,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:39" (1/1) ... [2022-11-20 12:12:39,426 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2022-11-20 12:12:39,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:12:39,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:12:39,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:12:39,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:12:39,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:39" (1/1) ... [2022-11-20 12:12:39,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:39" (1/1) ... [2022-11-20 12:12:39,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:39" (1/1) ... [2022-11-20 12:12:39,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:39" (1/1) ... [2022-11-20 12:12:39,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:39" (1/1) ... [2022-11-20 12:12:39,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:39" (1/1) ... [2022-11-20 12:12:39,467 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:39" (1/1) ... [2022-11-20 12:12:39,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:39" (1/1) ... [2022-11-20 12:12:39,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:12:39,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:12:39,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:12:39,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:12:39,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:39" (1/1) ... [2022-11-20 12:12:39,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:12:39,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:12:39,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:12:39,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:12:39,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:12:39,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:12:39,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:12:39,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:12:39,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:12:39,556 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 12:12:39,556 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 12:12:39,556 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 12:12:39,557 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 12:12:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 12:12:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 12:12:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 12:12:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 12:12:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:12:39,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:12:39,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:12:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:12:39,561 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:12:39,784 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:12:39,786 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:12:40,293 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:12:40,484 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:12:40,484 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:12:40,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:12:40 BoogieIcfgContainer [2022-11-20 12:12:40,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:12:40,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:12:40,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:12:40,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:12:40,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:12:38" (1/3) ... [2022-11-20 12:12:40,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3228b221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:12:40, skipping insertion in model container [2022-11-20 12:12:40,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:12:39" (2/3) ... [2022-11-20 12:12:40,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3228b221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:12:40, skipping insertion in model container [2022-11-20 12:12:40,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:12:40" (3/3) ... [2022-11-20 12:12:40,494 INFO L112 eAbstractionObserver]: Analyzing ICFG mix013.opt.i [2022-11-20 12:12:40,513 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:12:40,513 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-20 12:12:40,513 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:12:40,567 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:12:40,601 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 12:12:40,616 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 150 transitions, 320 flow [2022-11-20 12:12:40,619 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 150 transitions, 320 flow [2022-11-20 12:12:40,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 320 flow [2022-11-20 12:12:40,677 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-11-20 12:12:40,678 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:12:40,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-11-20 12:12:40,687 INFO L119 LiptonReduction]: Number of co-enabled transitions 3394 [2022-11-20 12:12:47,498 INFO L134 LiptonReduction]: Checked pairs total: 8653 [2022-11-20 12:12:47,499 INFO L136 LiptonReduction]: Total number of compositions: 145 [2022-11-20 12:12:47,507 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 43 transitions, 106 flow [2022-11-20 12:12:47,744 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3940 states, 3927 states have (on average 4.0407435701553345) internal successors, (15868), 3939 states have internal predecessors, (15868), 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) [2022-11-20 12:12:47,763 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:12:47,770 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@73cc943c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:12:47,770 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-20 12:12:47,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 3940 states, 3927 states have (on average 4.0407435701553345) internal successors, (15868), 3939 states have internal predecessors, (15868), 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) [2022-11-20 12:12:47,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 12:12:47,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:47,791 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 12:12:47,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:47,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:47,797 INFO L85 PathProgramCache]: Analyzing trace with hash 633, now seen corresponding path program 1 times [2022-11-20 12:12:47,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:47,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685696386] [2022-11-20 12:12:47,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:47,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:47,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:47,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:47,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685696386] [2022-11-20 12:12:47,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685696386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:47,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:47,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 12:12:47,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418343323] [2022-11-20 12:12:47,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:47,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:12:47,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:47,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:12:47,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:12:47,957 INFO L87 Difference]: Start difference. First operand has 3940 states, 3927 states have (on average 4.0407435701553345) internal successors, (15868), 3939 states have internal predecessors, (15868), 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, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-20 12:12:48,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:48,143 INFO L93 Difference]: Finished difference Result 3730 states and 14662 transitions. [2022-11-20 12:12:48,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:12:48,152 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-20 12:12:48,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:48,206 INFO L225 Difference]: With dead ends: 3730 [2022-11-20 12:12:48,206 INFO L226 Difference]: Without dead ends: 3730 [2022-11-20 12:12:48,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:12:48,210 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:48,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:12:48,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2022-11-20 12:12:48,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 3730. [2022-11-20 12:12:48,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 3725 states have (on average 3.9361073825503357) internal successors, (14662), 3729 states have internal predecessors, (14662), 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) [2022-11-20 12:12:48,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 14662 transitions. [2022-11-20 12:12:48,468 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 14662 transitions. Word has length 1 [2022-11-20 12:12:48,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:48,469 INFO L495 AbstractCegarLoop]: Abstraction has 3730 states and 14662 transitions. [2022-11-20 12:12:48,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-20 12:12:48,469 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 14662 transitions. [2022-11-20 12:12:48,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 12:12:48,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:48,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:48,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:12:48,472 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:48,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:48,473 INFO L85 PathProgramCache]: Analyzing trace with hash -377372884, now seen corresponding path program 1 times [2022-11-20 12:12:48,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:48,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276492420] [2022-11-20 12:12:48,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:48,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:49,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:49,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:49,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276492420] [2022-11-20 12:12:49,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276492420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:49,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:49,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 12:12:49,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763801379] [2022-11-20 12:12:49,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:49,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:12:49,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:49,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:12:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:12:49,023 INFO L87 Difference]: Start difference. First operand 3730 states and 14662 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-20 12:12:49,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:49,210 INFO L93 Difference]: Finished difference Result 3170 states and 12334 transitions. [2022-11-20 12:12:49,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:12:49,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-11-20 12:12:49,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:49,249 INFO L225 Difference]: With dead ends: 3170 [2022-11-20 12:12:49,249 INFO L226 Difference]: Without dead ends: 3090 [2022-11-20 12:12:49,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:12:49,251 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:49,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:12:49,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2022-11-20 12:12:49,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 3090. [2022-11-20 12:12:49,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3090 states, 3088 states have (on average 3.908678756476684) internal successors, (12070), 3089 states have internal predecessors, (12070), 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) [2022-11-20 12:12:49,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3090 states to 3090 states and 12070 transitions. [2022-11-20 12:12:49,378 INFO L78 Accepts]: Start accepts. Automaton has 3090 states and 12070 transitions. Word has length 9 [2022-11-20 12:12:49,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:49,379 INFO L495 AbstractCegarLoop]: Abstraction has 3090 states and 12070 transitions. [2022-11-20 12:12:49,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-20 12:12:49,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3090 states and 12070 transitions. [2022-11-20 12:12:49,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 12:12:49,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:49,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:49,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:12:49,383 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:49,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:49,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1910919193, now seen corresponding path program 1 times [2022-11-20 12:12:49,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:49,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969805367] [2022-11-20 12:12:49,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:49,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:49,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:49,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:49,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969805367] [2022-11-20 12:12:49,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969805367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:49,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:49,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:12:49,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061345859] [2022-11-20 12:12:49,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:49,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:12:49,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:49,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:12:49,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:12:49,795 INFO L87 Difference]: Start difference. First operand 3090 states and 12070 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-20 12:12:50,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:50,022 INFO L93 Difference]: Finished difference Result 4002 states and 15334 transitions. [2022-11-20 12:12:50,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:12:50,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-20 12:12:50,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:50,053 INFO L225 Difference]: With dead ends: 4002 [2022-11-20 12:12:50,053 INFO L226 Difference]: Without dead ends: 4002 [2022-11-20 12:12:50,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:12:50,054 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 31 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:50,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 12 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:12:50,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4002 states. [2022-11-20 12:12:50,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4002 to 3538. [2022-11-20 12:12:50,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3538 states, 3536 states have (on average 3.9292986425339365) internal successors, (13894), 3537 states have internal predecessors, (13894), 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) [2022-11-20 12:12:50,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 13894 transitions. [2022-11-20 12:12:50,269 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 13894 transitions. Word has length 12 [2022-11-20 12:12:50,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:50,270 INFO L495 AbstractCegarLoop]: Abstraction has 3538 states and 13894 transitions. [2022-11-20 12:12:50,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-20 12:12:50,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 13894 transitions. [2022-11-20 12:12:50,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 12:12:50,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:50,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:50,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:12:50,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:50,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:50,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1910919210, now seen corresponding path program 1 times [2022-11-20 12:12:50,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:50,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873605705] [2022-11-20 12:12:50,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:50,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:50,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:50,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:50,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873605705] [2022-11-20 12:12:50,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873605705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:50,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:50,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:12:50,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165914581] [2022-11-20 12:12:50,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:50,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:12:50,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:50,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:12:50,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:12:50,977 INFO L87 Difference]: Start difference. First operand 3538 states and 13894 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-11-20 12:12:51,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:51,343 INFO L93 Difference]: Finished difference Result 4834 states and 18222 transitions. [2022-11-20 12:12:51,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:12:51,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2022-11-20 12:12:51,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:51,374 INFO L225 Difference]: With dead ends: 4834 [2022-11-20 12:12:51,374 INFO L226 Difference]: Without dead ends: 4354 [2022-11-20 12:12:51,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:12:51,376 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 50 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:51,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 43 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:12:51,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4354 states. [2022-11-20 12:12:51,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4354 to 4066. [2022-11-20 12:12:51,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4066 states, 4064 states have (on average 3.8971456692913384) internal successors, (15838), 4065 states have internal predecessors, (15838), 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) [2022-11-20 12:12:51,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4066 states to 4066 states and 15838 transitions. [2022-11-20 12:12:51,556 INFO L78 Accepts]: Start accepts. Automaton has 4066 states and 15838 transitions. Word has length 12 [2022-11-20 12:12:51,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:51,556 INFO L495 AbstractCegarLoop]: Abstraction has 4066 states and 15838 transitions. [2022-11-20 12:12:51,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-11-20 12:12:51,557 INFO L276 IsEmpty]: Start isEmpty. Operand 4066 states and 15838 transitions. [2022-11-20 12:12:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 12:12:51,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:51,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:51,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:12:51,560 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:51,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:51,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1198990371, now seen corresponding path program 1 times [2022-11-20 12:12:51,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:51,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243188485] [2022-11-20 12:12:51,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:51,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:51,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:51,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:51,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243188485] [2022-11-20 12:12:51,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243188485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:51,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:51,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:12:51,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120356931] [2022-11-20 12:12:51,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:51,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:12:51,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:51,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:12:51,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:12:51,718 INFO L87 Difference]: Start difference. First operand 4066 states and 15838 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-20 12:12:51,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:51,958 INFO L93 Difference]: Finished difference Result 4594 states and 17302 transitions. [2022-11-20 12:12:51,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:12:51,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-11-20 12:12:51,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:51,985 INFO L225 Difference]: With dead ends: 4594 [2022-11-20 12:12:51,985 INFO L226 Difference]: Without dead ends: 4162 [2022-11-20 12:12:51,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:12:51,987 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 38 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:51,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 20 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:12:51,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4162 states. [2022-11-20 12:12:52,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4162 to 3970. [2022-11-20 12:12:52,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3970 states, 3968 states have (on average 3.8503024193548385) internal successors, (15278), 3969 states have internal predecessors, (15278), 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) [2022-11-20 12:12:52,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3970 states to 3970 states and 15278 transitions. [2022-11-20 12:12:52,136 INFO L78 Accepts]: Start accepts. Automaton has 3970 states and 15278 transitions. Word has length 14 [2022-11-20 12:12:52,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:52,137 INFO L495 AbstractCegarLoop]: Abstraction has 3970 states and 15278 transitions. [2022-11-20 12:12:52,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-20 12:12:52,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3970 states and 15278 transitions. [2022-11-20 12:12:52,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 12:12:52,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:52,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:52,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:12:52,140 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:52,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:52,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1198990388, now seen corresponding path program 1 times [2022-11-20 12:12:52,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:52,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602684213] [2022-11-20 12:12:52,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:52,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:52,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:52,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602684213] [2022-11-20 12:12:52,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602684213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:52,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:52,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:12:52,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959607200] [2022-11-20 12:12:52,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:52,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:12:52,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:52,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:12:52,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:12:52,976 INFO L87 Difference]: Start difference. First operand 3970 states and 15278 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-20 12:12:53,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:53,220 INFO L93 Difference]: Finished difference Result 3682 states and 13934 transitions. [2022-11-20 12:12:53,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:12:53,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2022-11-20 12:12:53,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:53,239 INFO L225 Difference]: With dead ends: 3682 [2022-11-20 12:12:53,239 INFO L226 Difference]: Without dead ends: 3394 [2022-11-20 12:12:53,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:12:53,243 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 51 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:53,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 55 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:12:53,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3394 states. [2022-11-20 12:12:53,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3394 to 2290. [2022-11-20 12:12:53,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2290 states, 2289 states have (on average 3.805155089558759) internal successors, (8710), 2289 states have internal predecessors, (8710), 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) [2022-11-20 12:12:53,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 8710 transitions. [2022-11-20 12:12:53,368 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 8710 transitions. Word has length 14 [2022-11-20 12:12:53,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:53,368 INFO L495 AbstractCegarLoop]: Abstraction has 2290 states and 8710 transitions. [2022-11-20 12:12:53,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-20 12:12:53,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 8710 transitions. [2022-11-20 12:12:53,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 12:12:53,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:53,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:53,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:12:53,371 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:53,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:53,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1852566182, now seen corresponding path program 1 times [2022-11-20 12:12:53,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:53,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111043786] [2022-11-20 12:12:53,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:53,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:53,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:53,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:53,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111043786] [2022-11-20 12:12:53,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111043786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:53,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:53,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:12:53,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445534329] [2022-11-20 12:12:53,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:53,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:12:53,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:53,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:12:53,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:12:53,624 INFO L87 Difference]: Start difference. First operand 2290 states and 8710 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-11-20 12:12:53,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:53,790 INFO L93 Difference]: Finished difference Result 2354 states and 8726 transitions. [2022-11-20 12:12:53,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:12:53,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2022-11-20 12:12:53,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:53,800 INFO L225 Difference]: With dead ends: 2354 [2022-11-20 12:12:53,801 INFO L226 Difference]: Without dead ends: 2034 [2022-11-20 12:12:53,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:12:53,802 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 55 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:53,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 12 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:12:53,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states. [2022-11-20 12:12:53,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 2034. [2022-11-20 12:12:53,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2034 states, 2033 states have (on average 3.749139203148057) internal successors, (7622), 2033 states have internal predecessors, (7622), 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) [2022-11-20 12:12:53,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2034 states to 2034 states and 7622 transitions. [2022-11-20 12:12:53,869 INFO L78 Accepts]: Start accepts. Automaton has 2034 states and 7622 transitions. Word has length 14 [2022-11-20 12:12:53,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:53,870 INFO L495 AbstractCegarLoop]: Abstraction has 2034 states and 7622 transitions. [2022-11-20 12:12:53,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-11-20 12:12:53,870 INFO L276 IsEmpty]: Start isEmpty. Operand 2034 states and 7622 transitions. [2022-11-20 12:12:53,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 12:12:53,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:53,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:53,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:12:53,874 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:53,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:53,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1178603236, now seen corresponding path program 1 times [2022-11-20 12:12:53,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:53,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544256249] [2022-11-20 12:12:53,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:53,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:54,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:54,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:54,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544256249] [2022-11-20 12:12:54,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544256249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:54,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:54,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:12:54,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112831691] [2022-11-20 12:12:54,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:54,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:12:54,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:54,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:12:54,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:12:54,139 INFO L87 Difference]: Start difference. First operand 2034 states and 7622 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-11-20 12:12:54,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:54,242 INFO L93 Difference]: Finished difference Result 2046 states and 6966 transitions. [2022-11-20 12:12:54,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:12:54,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2022-11-20 12:12:54,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:54,250 INFO L225 Difference]: With dead ends: 2046 [2022-11-20 12:12:54,250 INFO L226 Difference]: Without dead ends: 1566 [2022-11-20 12:12:54,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:12:54,252 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 53 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:54,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 12 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:12:54,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2022-11-20 12:12:54,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1566. [2022-11-20 12:12:54,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 3.375079872204473) internal successors, (5282), 1565 states have internal predecessors, (5282), 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) [2022-11-20 12:12:54,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 5282 transitions. [2022-11-20 12:12:54,301 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 5282 transitions. Word has length 16 [2022-11-20 12:12:54,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:54,301 INFO L495 AbstractCegarLoop]: Abstraction has 1566 states and 5282 transitions. [2022-11-20 12:12:54,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-11-20 12:12:54,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 5282 transitions. [2022-11-20 12:12:54,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 12:12:54,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:54,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:54,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:12:54,306 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:54,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:54,306 INFO L85 PathProgramCache]: Analyzing trace with hash -2125247348, now seen corresponding path program 1 times [2022-11-20 12:12:54,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:54,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826567995] [2022-11-20 12:12:54,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:54,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:54,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:54,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:54,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826567995] [2022-11-20 12:12:54,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826567995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:54,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:54,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:12:54,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268991846] [2022-11-20 12:12:54,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:54,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:12:54,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:54,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:12:54,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:12:54,623 INFO L87 Difference]: Start difference. First operand 1566 states and 5282 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-20 12:12:54,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:54,757 INFO L93 Difference]: Finished difference Result 1302 states and 4011 transitions. [2022-11-20 12:12:54,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:12:54,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2022-11-20 12:12:54,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:54,761 INFO L225 Difference]: With dead ends: 1302 [2022-11-20 12:12:54,761 INFO L226 Difference]: Without dead ends: 1002 [2022-11-20 12:12:54,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:12:54,763 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 103 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:54,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 16 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:12:54,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2022-11-20 12:12:54,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 1002. [2022-11-20 12:12:54,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 1001 states have (on average 3.022977022977023) internal successors, (3026), 1001 states have internal predecessors, (3026), 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) [2022-11-20 12:12:54,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 3026 transitions. [2022-11-20 12:12:54,791 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 3026 transitions. Word has length 18 [2022-11-20 12:12:54,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:54,792 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 3026 transitions. [2022-11-20 12:12:54,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-20 12:12:54,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 3026 transitions. [2022-11-20 12:12:54,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 12:12:54,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:54,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:54,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:12:54,798 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:54,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:54,798 INFO L85 PathProgramCache]: Analyzing trace with hash 656558226, now seen corresponding path program 1 times [2022-11-20 12:12:54,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:54,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944419663] [2022-11-20 12:12:54,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:54,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:54,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:54,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:54,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944419663] [2022-11-20 12:12:54,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944419663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:54,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:54,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:12:54,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55634335] [2022-11-20 12:12:54,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:54,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:12:54,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:54,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:12:54,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:12:54,992 INFO L87 Difference]: Start difference. First operand 1002 states and 3026 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 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) [2022-11-20 12:12:55,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:55,199 INFO L93 Difference]: Finished difference Result 1475 states and 4322 transitions. [2022-11-20 12:12:55,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:12:55,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 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 [2022-11-20 12:12:55,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:55,203 INFO L225 Difference]: With dead ends: 1475 [2022-11-20 12:12:55,203 INFO L226 Difference]: Without dead ends: 1038 [2022-11-20 12:12:55,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:12:55,204 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 43 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:55,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 18 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:12:55,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2022-11-20 12:12:55,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1002. [2022-11-20 12:12:55,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 1001 states have (on average 2.863136863136863) internal successors, (2866), 1001 states have internal predecessors, (2866), 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) [2022-11-20 12:12:55,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 2866 transitions. [2022-11-20 12:12:55,231 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 2866 transitions. Word has length 21 [2022-11-20 12:12:55,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:55,232 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 2866 transitions. [2022-11-20 12:12:55,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 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) [2022-11-20 12:12:55,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 2866 transitions. [2022-11-20 12:12:55,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 12:12:55,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:55,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:55,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:12:55,235 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:55,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:55,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1709054477, now seen corresponding path program 1 times [2022-11-20 12:12:55,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:55,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653921951] [2022-11-20 12:12:55,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:55,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:55,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:55,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:55,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653921951] [2022-11-20 12:12:55,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653921951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:55,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:55,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:12:55,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212919033] [2022-11-20 12:12:55,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:55,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:12:55,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:55,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:12:55,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:12:55,547 INFO L87 Difference]: Start difference. First operand 1002 states and 2866 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 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) [2022-11-20 12:12:55,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:55,721 INFO L93 Difference]: Finished difference Result 845 states and 2372 transitions. [2022-11-20 12:12:55,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:12:55,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 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 [2022-11-20 12:12:55,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:55,725 INFO L225 Difference]: With dead ends: 845 [2022-11-20 12:12:55,725 INFO L226 Difference]: Without dead ends: 746 [2022-11-20 12:12:55,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:12:55,726 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 129 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:55,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 20 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:12:55,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-11-20 12:12:55,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2022-11-20 12:12:55,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 745 states have (on average 2.8456375838926173) internal successors, (2120), 745 states have internal predecessors, (2120), 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) [2022-11-20 12:12:55,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 2120 transitions. [2022-11-20 12:12:55,753 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 2120 transitions. Word has length 21 [2022-11-20 12:12:55,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:55,753 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 2120 transitions. [2022-11-20 12:12:55,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 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) [2022-11-20 12:12:55,754 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 2120 transitions. [2022-11-20 12:12:55,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 12:12:55,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:55,757 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:12:55,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:12:55,757 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:55,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:55,758 INFO L85 PathProgramCache]: Analyzing trace with hash -642472395, now seen corresponding path program 1 times [2022-11-20 12:12:55,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:55,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642868683] [2022-11-20 12:12:55,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:55,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:56,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:56,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:56,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642868683] [2022-11-20 12:12:56,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642868683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:56,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:56,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:12:56,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130616551] [2022-11-20 12:12:56,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:56,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:12:56,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:56,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:12:56,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:12:56,119 INFO L87 Difference]: Start difference. First operand 746 states and 2120 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 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) [2022-11-20 12:12:56,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:56,277 INFO L93 Difference]: Finished difference Result 710 states and 2047 transitions. [2022-11-20 12:12:56,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:12:56,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 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 [2022-11-20 12:12:56,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:56,279 INFO L225 Difference]: With dead ends: 710 [2022-11-20 12:12:56,279 INFO L226 Difference]: Without dead ends: 422 [2022-11-20 12:12:56,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:12:56,280 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 209 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:56,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 15 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:12:56,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-11-20 12:12:56,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2022-11-20 12:12:56,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 421 states have (on average 2.798099762470309) internal successors, (1178), 421 states have internal predecessors, (1178), 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) [2022-11-20 12:12:56,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 1178 transitions. [2022-11-20 12:12:56,291 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 1178 transitions. Word has length 24 [2022-11-20 12:12:56,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:56,291 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 1178 transitions. [2022-11-20 12:12:56,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 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) [2022-11-20 12:12:56,292 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 1178 transitions. [2022-11-20 12:12:56,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:12:56,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:56,293 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:12:56,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:12:56,294 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:56,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:56,294 INFO L85 PathProgramCache]: Analyzing trace with hash -719148705, now seen corresponding path program 1 times [2022-11-20 12:12:56,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:56,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395890094] [2022-11-20 12:12:56,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:56,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:56,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:56,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:56,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395890094] [2022-11-20 12:12:56,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395890094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:56,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:56,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:12:56,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148765111] [2022-11-20 12:12:56,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:56,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:12:56,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:56,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:12:56,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:12:56,557 INFO L87 Difference]: Start difference. First operand 422 states and 1178 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2022-11-20 12:12:56,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:56,713 INFO L93 Difference]: Finished difference Result 557 states and 1536 transitions. [2022-11-20 12:12:56,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:12:56,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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 [2022-11-20 12:12:56,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:56,715 INFO L225 Difference]: With dead ends: 557 [2022-11-20 12:12:56,715 INFO L226 Difference]: Without dead ends: 174 [2022-11-20 12:12:56,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:12:56,716 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 25 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:56,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 17 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:12:56,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-20 12:12:56,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-11-20 12:12:56,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 2.479768786127168) internal successors, (429), 173 states have internal predecessors, (429), 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) [2022-11-20 12:12:56,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 429 transitions. [2022-11-20 12:12:56,721 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 429 transitions. Word has length 27 [2022-11-20 12:12:56,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:56,721 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 429 transitions. [2022-11-20 12:12:56,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2022-11-20 12:12:56,721 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 429 transitions. [2022-11-20 12:12:56,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:12:56,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:56,722 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:12:56,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:12:56,722 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:56,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:56,723 INFO L85 PathProgramCache]: Analyzing trace with hash 607630161, now seen corresponding path program 2 times [2022-11-20 12:12:56,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:56,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049229966] [2022-11-20 12:12:56,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:56,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:57,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:57,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:57,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049229966] [2022-11-20 12:12:57,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049229966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:57,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:57,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:12:57,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142416040] [2022-11-20 12:12:57,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:57,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:12:57,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:57,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:12:57,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:12:57,036 INFO L87 Difference]: Start difference. First operand 174 states and 429 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2022-11-20 12:12:57,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:57,213 INFO L93 Difference]: Finished difference Result 213 states and 516 transitions. [2022-11-20 12:12:57,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:12:57,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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 [2022-11-20 12:12:57,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:57,215 INFO L225 Difference]: With dead ends: 213 [2022-11-20 12:12:57,215 INFO L226 Difference]: Without dead ends: 128 [2022-11-20 12:12:57,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:12:57,216 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 26 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:57,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 17 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:12:57,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-20 12:12:57,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2022-11-20 12:12:57,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 2.2869565217391306) internal successors, (263), 115 states have internal predecessors, (263), 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) [2022-11-20 12:12:57,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 263 transitions. [2022-11-20 12:12:57,219 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 263 transitions. Word has length 27 [2022-11-20 12:12:57,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:57,220 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 263 transitions. [2022-11-20 12:12:57,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2022-11-20 12:12:57,220 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 263 transitions. [2022-11-20 12:12:57,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:12:57,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:57,221 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:12:57,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:12:57,221 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:57,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:57,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1453524621, now seen corresponding path program 3 times [2022-11-20 12:12:57,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:57,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468018790] [2022-11-20 12:12:57,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:57,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:57,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:57,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:57,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468018790] [2022-11-20 12:12:57,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468018790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:57,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:57,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:12:57,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475827898] [2022-11-20 12:12:57,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:57,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:12:57,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:57,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:12:57,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:12:57,482 INFO L87 Difference]: Start difference. First operand 116 states and 263 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 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) [2022-11-20 12:12:57,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:57,646 INFO L93 Difference]: Finished difference Result 155 states and 350 transitions. [2022-11-20 12:12:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:12:57,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 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 [2022-11-20 12:12:57,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:57,648 INFO L225 Difference]: With dead ends: 155 [2022-11-20 12:12:57,648 INFO L226 Difference]: Without dead ends: 87 [2022-11-20 12:12:57,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:12:57,649 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 37 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:57,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 17 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:12:57,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-20 12:12:57,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-20 12:12:57,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 2.0930232558139537) internal successors, (180), 86 states have internal predecessors, (180), 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) [2022-11-20 12:12:57,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 180 transitions. [2022-11-20 12:12:57,652 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 180 transitions. Word has length 27 [2022-11-20 12:12:57,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:57,652 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 180 transitions. [2022-11-20 12:12:57,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 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) [2022-11-20 12:12:57,652 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 180 transitions. [2022-11-20 12:12:57,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:12:57,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:57,653 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:12:57,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:12:57,653 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:57,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:57,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2073585577, now seen corresponding path program 4 times [2022-11-20 12:12:57,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:57,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809513404] [2022-11-20 12:12:57,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:57,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:58,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:12:58,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:12:58,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809513404] [2022-11-20 12:12:58,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809513404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:58,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:58,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:12:58,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687036656] [2022-11-20 12:12:58,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:58,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:12:58,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:12:58,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:12:58,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:12:58,614 INFO L87 Difference]: Start difference. First operand 87 states and 180 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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) [2022-11-20 12:12:58,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:58,876 INFO L93 Difference]: Finished difference Result 106 states and 215 transitions. [2022-11-20 12:12:58,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:12:58,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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 [2022-11-20 12:12:58,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:58,877 INFO L225 Difference]: With dead ends: 106 [2022-11-20 12:12:58,877 INFO L226 Difference]: Without dead ends: 55 [2022-11-20 12:12:58,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:12:58,878 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 22 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:58,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 42 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:12:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-20 12:12:58,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-11-20 12:12:58,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.7407407407407407) internal successors, (94), 54 states have internal predecessors, (94), 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) [2022-11-20 12:12:58,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 94 transitions. [2022-11-20 12:12:58,880 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 94 transitions. Word has length 27 [2022-11-20 12:12:58,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:58,881 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 94 transitions. [2022-11-20 12:12:58,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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) [2022-11-20 12:12:58,881 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 94 transitions. [2022-11-20 12:12:58,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:12:58,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:58,881 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:12:58,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:12:58,882 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:12:58,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:58,882 INFO L85 PathProgramCache]: Analyzing trace with hash -953689769, now seen corresponding path program 5 times [2022-11-20 12:12:58,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:12:58,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418280676] [2022-11-20 12:12:58,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:58,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:12:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:12:58,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:12:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:12:59,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:12:59,059 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:12:59,061 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-20 12:12:59,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-20 12:12:59,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-20 12:12:59,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-20 12:12:59,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-20 12:12:59,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-20 12:12:59,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-20 12:12:59,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-20 12:12:59,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-20 12:12:59,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-20 12:12:59,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-20 12:12:59,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-20 12:12:59,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-20 12:12:59,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-20 12:12:59,066 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-20 12:12:59,066 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-20 12:12:59,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:12:59,068 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:59,073 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:12:59,074 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:12:59,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:12:59 BasicIcfg [2022-11-20 12:12:59,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:12:59,175 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:12:59,175 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:12:59,176 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:12:59,176 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:12:40" (3/4) ... [2022-11-20 12:12:59,179 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:12:59,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:12:59,180 INFO L158 Benchmark]: Toolchain (without parser) took 20519.42ms. Allocated memory was 138.4MB in the beginning and 490.7MB in the end (delta: 352.3MB). Free memory was 74.8MB in the beginning and 185.7MB in the end (delta: -110.9MB). Peak memory consumption was 242.1MB. Max. memory is 16.1GB. [2022-11-20 12:12:59,180 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory was 107.3MB in the beginning and 107.1MB in the end (delta: 161.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:12:59,180 INFO L158 Benchmark]: CACSL2BoogieTranslator took 667.87ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 74.6MB in the beginning and 129.9MB in the end (delta: -55.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 12:12:59,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.01ms. Allocated memory is still 180.4MB. Free memory was 129.9MB in the beginning and 127.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:12:59,181 INFO L158 Benchmark]: Boogie Preprocessor took 41.98ms. Allocated memory is still 180.4MB. Free memory was 127.3MB in the beginning and 125.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:12:59,181 INFO L158 Benchmark]: RCFGBuilder took 1012.89ms. Allocated memory is still 180.4MB. Free memory was 125.2MB in the beginning and 147.1MB in the end (delta: -21.9MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2022-11-20 12:12:59,182 INFO L158 Benchmark]: TraceAbstraction took 18686.25ms. Allocated memory was 180.4MB in the beginning and 490.7MB in the end (delta: 310.4MB). Free memory was 147.1MB in the beginning and 185.7MB in the end (delta: -38.6MB). Peak memory consumption was 270.8MB. Max. memory is 16.1GB. [2022-11-20 12:12:59,182 INFO L158 Benchmark]: Witness Printer took 3.92ms. Allocated memory is still 490.7MB. Free memory is still 185.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:12:59,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory was 107.3MB in the beginning and 107.1MB in the end (delta: 161.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 667.87ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 74.6MB in the beginning and 129.9MB in the end (delta: -55.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.01ms. Allocated memory is still 180.4MB. Free memory was 129.9MB in the beginning and 127.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.98ms. Allocated memory is still 180.4MB. Free memory was 127.3MB in the beginning and 125.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1012.89ms. Allocated memory is still 180.4MB. Free memory was 125.2MB in the beginning and 147.1MB in the end (delta: -21.9MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. * TraceAbstraction took 18686.25ms. Allocated memory was 180.4MB in the beginning and 490.7MB in the end (delta: 310.4MB). Free memory was 147.1MB in the beginning and 185.7MB in the end (delta: -38.6MB). Peak memory consumption was 270.8MB. Max. memory is 16.1GB. * Witness Printer took 3.92ms. Allocated memory is still 490.7MB. Free memory is still 185.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.9s, 161 PlacesBefore, 55 PlacesAfterwards, 150 TransitionsBefore, 43 TransitionsAfterwards, 3394 CoEnabledTransitionPairs, 7 FixpointIterations, 57 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 145 TotalNumberOfCompositions, 8653 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5401, independent: 5208, independent conditional: 0, independent unconditional: 5208, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2500, independent: 2433, independent conditional: 0, independent unconditional: 2433, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2500, independent: 2408, independent conditional: 0, independent unconditional: 2408, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 92, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 737, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 696, dependent conditional: 0, dependent unconditional: 696, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5401, independent: 2775, independent conditional: 0, independent unconditional: 2775, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 2500, unknown conditional: 0, unknown unconditional: 2500] , Statistics on independence cache: Total cache size (in pairs): 345, Positive cache size: 322, Positive conditional cache size: 0, Positive unconditional cache size: 322, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p1_EBX = 0; [L718] 0 int __unbuffered_p2_EAX = 0; [L720] 0 int __unbuffered_p3_EAX = 0; [L722] 0 int __unbuffered_p3_EBX = 0; [L724] 0 int a = 0; [L725] 0 _Bool main$tmp_guard0; [L726] 0 _Bool main$tmp_guard1; [L728] 0 int x = 0; [L730] 0 int y = 0; [L732] 0 int z = 0; [L733] 0 _Bool z$flush_delayed; [L734] 0 int z$mem_tmp; [L735] 0 _Bool z$r_buff0_thd0; [L736] 0 _Bool z$r_buff0_thd1; [L737] 0 _Bool z$r_buff0_thd2; [L738] 0 _Bool z$r_buff0_thd3; [L739] 0 _Bool z$r_buff0_thd4; [L740] 0 _Bool z$r_buff1_thd0; [L741] 0 _Bool z$r_buff1_thd1; [L742] 0 _Bool z$r_buff1_thd2; [L743] 0 _Bool z$r_buff1_thd3; [L744] 0 _Bool z$r_buff1_thd4; [L745] 0 _Bool z$read_delayed; [L746] 0 int *z$read_delayed_var; [L747] 0 int z$w_buff0; [L748] 0 _Bool z$w_buff0_used; [L749] 0 int z$w_buff1; [L750] 0 _Bool z$w_buff1_used; [L751] 0 _Bool weak$$choice0; [L752] 0 _Bool weak$$choice2; [L871] 0 pthread_t t325; [L872] FCALL, FORK 0 pthread_create(&t325, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t325, ((void *)0), P0, ((void *)0))=-3, t325={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L873] 0 pthread_t t326; [L874] FCALL, FORK 0 pthread_create(&t326, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t326, ((void *)0), P1, ((void *)0))=-2, t325={5:0}, t326={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L875] 0 pthread_t t327; [L876] FCALL, FORK 0 pthread_create(&t327, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t327, ((void *)0), P2, ((void *)0))=-1, t325={5:0}, t326={6:0}, t327={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L877] 0 pthread_t t328; [L878] FCALL, FORK 0 pthread_create(&t328, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t328, ((void *)0), P3, ((void *)0))=0, t325={5:0}, t326={6:0}, t327={7:0}, t328={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L817] 4 z$w_buff1 = z$w_buff0 [L818] 4 z$w_buff0 = 1 [L819] 4 z$w_buff1_used = z$w_buff0_used [L820] 4 z$w_buff0_used = (_Bool)1 [L821] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L821] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L822] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L823] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L824] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L825] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L826] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L827] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L830] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L831] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L832] 4 z$flush_delayed = weak$$choice2 [L833] 4 z$mem_tmp = z [L834] 4 z = !z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff1) [L835] 4 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff0)) [L836] 4 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff1 : z$w_buff1)) [L837] 4 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used)) [L838] 4 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L839] 4 z$r_buff0_thd4 = weak$$choice2 ? z$r_buff0_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4)) [L840] 4 z$r_buff1_thd4 = weak$$choice2 ? z$r_buff1_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff1_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L841] 4 __unbuffered_p3_EAX = z [L842] 4 z = z$flush_delayed ? z$mem_tmp : z [L843] 4 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L846] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L756] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L759] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 1 return 0; [L771] 2 x = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L774] 2 __unbuffered_p1_EAX = x VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L777] 2 __unbuffered_p1_EBX = y VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L789] 3 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L792] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L793] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L794] 3 z$flush_delayed = weak$$choice2 [L795] 3 z$mem_tmp = z [L796] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L797] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L798] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L799] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L800] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L801] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L802] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L803] 3 __unbuffered_p2_EAX = z [L804] 3 z = z$flush_delayed ? z$mem_tmp : z [L805] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L849] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L850] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L851] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L852] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L853] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L856] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L858] 4 return 0; [L782] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L784] 2 return 0; [L810] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L812] 3 return 0; [L880] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t325={5:0}, t326={6:0}, t327={7:0}, t328={3:0}, weak$$choice0=49, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L882] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L882] RET 0 assume_abort_if_not(main$tmp_guard0) [L884] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L885] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L886] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L887] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L888] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t325={5:0}, t326={6:0}, t327={7:0}, t328={3:0}, weak$$choice0=49, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L891] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L893] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 876]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 872]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 874]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 185 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 18.5s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 886 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 886 mSDsluCounter, 328 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 223 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1811 IncrementalHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 105 mSDtfsCounter, 1811 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4066occurred in iteration=4, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 2096 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 268 ConstructedInterpolants, 0 QuantifiedInterpolants, 2313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 12:12:59,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix013.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN --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 7d5aa429e9fa5fafdbda3a249edb2f84a5af4e6e0b36ce720714921f621bb137 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:13:01,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:13:01,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:13:01,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:13:01,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:13:01,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:13:01,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:13:01,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:13:01,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:13:01,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:13:01,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:13:01,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:13:01,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:13:01,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:13:01,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:13:01,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:13:01,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:13:01,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:13:01,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:13:01,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:13:01,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:13:01,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:13:01,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:13:01,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:13:01,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:13:01,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:13:01,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:13:01,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:13:01,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:13:01,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:13:01,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:13:01,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:13:01,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:13:01,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:13:01,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:13:01,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:13:01,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:13:01,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:13:01,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:13:01,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:13:01,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:13:01,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-20 12:13:01,738 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:13:01,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:13:01,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:13:01,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:13:01,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:13:01,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:13:01,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:13:01,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:13:01,743 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:13:01,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:13:01,744 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:13:01,744 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:13:01,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:13:01,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:13:01,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:13:01,746 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 12:13:01,746 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 12:13:01,746 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 12:13:01,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:13:01,747 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:13:01,747 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:13:01,747 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:13:01,748 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:13:01,748 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:13:01,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:13:01,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:13:01,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:13:01,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:13:01,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:13:01,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:13:01,750 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:13:01,750 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:13:01,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:13:01,751 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d5aa429e9fa5fafdbda3a249edb2f84a5af4e6e0b36ce720714921f621bb137 [2022-11-20 12:13:02,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:13:02,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:13:02,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:13:02,166 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:13:02,167 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:13:02,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/mix013.opt.i [2022-11-20 12:13:05,171 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:13:05,496 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:13:05,497 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/sv-benchmarks/c/pthread-wmm/mix013.opt.i [2022-11-20 12:13:05,509 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/data/cc7252d09/103aa5ab4a29480988c999b5d550657b/FLAGf4ef5b8ba [2022-11-20 12:13:05,528 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/data/cc7252d09/103aa5ab4a29480988c999b5d550657b [2022-11-20 12:13:05,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:13:05,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:13:05,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:13:05,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:13:05,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:13:05,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:13:05" (1/1) ... [2022-11-20 12:13:05,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c0ad13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:05, skipping insertion in model container [2022-11-20 12:13:05,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:13:05" (1/1) ... [2022-11-20 12:13:05,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:13:05,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:13:05,773 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/sv-benchmarks/c/pthread-wmm/mix013.opt.i[944,957] [2022-11-20 12:13:06,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:13:06,104 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:13:06,117 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/sv-benchmarks/c/pthread-wmm/mix013.opt.i[944,957] [2022-11-20 12:13:06,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:13:06,297 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:13:06,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:06 WrapperNode [2022-11-20 12:13:06,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:13:06,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:13:06,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:13:06,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:13:06,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:06" (1/1) ... [2022-11-20 12:13:06,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:06" (1/1) ... [2022-11-20 12:13:06,351 INFO L138 Inliner]: procedures = 180, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 166 [2022-11-20 12:13:06,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:13:06,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:13:06,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:13:06,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:13:06,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:06" (1/1) ... [2022-11-20 12:13:06,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:06" (1/1) ... [2022-11-20 12:13:06,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:06" (1/1) ... [2022-11-20 12:13:06,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:06" (1/1) ... [2022-11-20 12:13:06,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:06" (1/1) ... [2022-11-20 12:13:06,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:06" (1/1) ... [2022-11-20 12:13:06,388 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:06" (1/1) ... [2022-11-20 12:13:06,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:06" (1/1) ... [2022-11-20 12:13:06,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:13:06,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:13:06,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:13:06,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:13:06,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:06" (1/1) ... [2022-11-20 12:13:06,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:13:06,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:13:06,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:13:06,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:13:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:13:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:13:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:13:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:13:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:13:06,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:13:06,503 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 12:13:06,503 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 12:13:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 12:13:06,504 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 12:13:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 12:13:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 12:13:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 12:13:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 12:13:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:13:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:13:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:13:06,507 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:13:06,705 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:13:06,707 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:13:07,175 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:13:07,326 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:13:07,326 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:13:07,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:13:07 BoogieIcfgContainer [2022-11-20 12:13:07,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:13:07,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:13:07,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:13:07,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:13:07,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:13:05" (1/3) ... [2022-11-20 12:13:07,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b40670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:13:07, skipping insertion in model container [2022-11-20 12:13:07,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:13:06" (2/3) ... [2022-11-20 12:13:07,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b40670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:13:07, skipping insertion in model container [2022-11-20 12:13:07,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:13:07" (3/3) ... [2022-11-20 12:13:07,338 INFO L112 eAbstractionObserver]: Analyzing ICFG mix013.opt.i [2022-11-20 12:13:07,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:13:07,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-20 12:13:07,357 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:13:07,422 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:13:07,457 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 12:13:07,483 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 151 transitions, 322 flow [2022-11-20 12:13:07,486 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 151 transitions, 322 flow [2022-11-20 12:13:07,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 151 transitions, 322 flow [2022-11-20 12:13:07,555 INFO L130 PetriNetUnfolder]: 2/147 cut-off events. [2022-11-20 12:13:07,555 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:13:07,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 147 events. 2/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-11-20 12:13:07,565 INFO L119 LiptonReduction]: Number of co-enabled transitions 3394 [2022-11-20 12:13:18,756 INFO L134 LiptonReduction]: Checked pairs total: 8737 [2022-11-20 12:13:18,757 INFO L136 LiptonReduction]: Total number of compositions: 145 [2022-11-20 12:13:18,766 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 43 transitions, 106 flow [2022-11-20 12:13:19,020 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3940 states, 3927 states have (on average 4.0407435701553345) internal successors, (15868), 3939 states have internal predecessors, (15868), 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) [2022-11-20 12:13:19,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:13:19,047 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@731cb9c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:13:19,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-20 12:13:19,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 3940 states, 3927 states have (on average 4.0407435701553345) internal successors, (15868), 3939 states have internal predecessors, (15868), 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) [2022-11-20 12:13:19,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 12:13:19,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:19,068 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 12:13:19,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:19,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:19,074 INFO L85 PathProgramCache]: Analyzing trace with hash 635, now seen corresponding path program 1 times [2022-11-20 12:13:19,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:19,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233880542] [2022-11-20 12:13:19,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:13:19,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:19,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:19,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:19,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:13:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:13:19,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 12:13:19,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:19,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:19,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:19,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:19,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233880542] [2022-11-20 12:13:19,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233880542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:19,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:19,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 12:13:19,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443543235] [2022-11-20 12:13:19,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:19,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:13:19,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:19,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:13:19,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:13:19,248 INFO L87 Difference]: Start difference. First operand has 3940 states, 3927 states have (on average 4.0407435701553345) internal successors, (15868), 3939 states have internal predecessors, (15868), 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, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-20 12:13:19,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:19,622 INFO L93 Difference]: Finished difference Result 3730 states and 14662 transitions. [2022-11-20 12:13:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:13:19,624 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-20 12:13:19,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:19,671 INFO L225 Difference]: With dead ends: 3730 [2022-11-20 12:13:19,671 INFO L226 Difference]: Without dead ends: 3730 [2022-11-20 12:13:19,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:13:19,675 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:19,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:13:19,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2022-11-20 12:13:19,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 3730. [2022-11-20 12:13:19,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 3725 states have (on average 3.9361073825503357) internal successors, (14662), 3729 states have internal predecessors, (14662), 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) [2022-11-20 12:13:19,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 14662 transitions. [2022-11-20 12:13:19,983 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 14662 transitions. Word has length 1 [2022-11-20 12:13:19,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:19,984 INFO L495 AbstractCegarLoop]: Abstraction has 3730 states and 14662 transitions. [2022-11-20 12:13:19,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-20 12:13:19,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 14662 transitions. [2022-11-20 12:13:19,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 12:13:19,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:19,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:13:20,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-20 12:13:20,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:20,201 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:20,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:20,202 INFO L85 PathProgramCache]: Analyzing trace with hash 438150879, now seen corresponding path program 1 times [2022-11-20 12:13:20,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:20,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47585619] [2022-11-20 12:13:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:13:20,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:20,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:20,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:20,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:13:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:13:20,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:13:20,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:20,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:20,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:20,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:20,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47585619] [2022-11-20 12:13:20,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47585619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:20,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:20,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 12:13:20,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27406225] [2022-11-20 12:13:20,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:20,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:13:20,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:20,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:13:20,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:13:20,364 INFO L87 Difference]: Start difference. First operand 3730 states and 14662 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-20 12:13:20,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:20,508 INFO L93 Difference]: Finished difference Result 3170 states and 12334 transitions. [2022-11-20 12:13:20,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:13:20,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-11-20 12:13:20,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:20,593 INFO L225 Difference]: With dead ends: 3170 [2022-11-20 12:13:20,594 INFO L226 Difference]: Without dead ends: 3090 [2022-11-20 12:13:20,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:13:20,595 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:20,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:13:20,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2022-11-20 12:13:20,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 3090. [2022-11-20 12:13:20,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3090 states, 3088 states have (on average 3.908678756476684) internal successors, (12070), 3089 states have internal predecessors, (12070), 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) [2022-11-20 12:13:20,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3090 states to 3090 states and 12070 transitions. [2022-11-20 12:13:20,771 INFO L78 Accepts]: Start accepts. Automaton has 3090 states and 12070 transitions. Word has length 9 [2022-11-20 12:13:20,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:20,772 INFO L495 AbstractCegarLoop]: Abstraction has 3090 states and 12070 transitions. [2022-11-20 12:13:20,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-20 12:13:20,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3090 states and 12070 transitions. [2022-11-20 12:13:20,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 12:13:20,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:20,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:13:20,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:20,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:20,995 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:20,996 INFO L85 PathProgramCache]: Analyzing trace with hash 549369495, now seen corresponding path program 1 times [2022-11-20 12:13:20,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:20,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073154719] [2022-11-20 12:13:20,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:13:20,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:20,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:21,004 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:21,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:13:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:13:21,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:13:21,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:21,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:21,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:21,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:21,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073154719] [2022-11-20 12:13:21,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073154719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:21,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:21,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:13:21,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602751857] [2022-11-20 12:13:21,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:21,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:13:21,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:21,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:13:21,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:13:21,208 INFO L87 Difference]: Start difference. First operand 3090 states and 12070 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-20 12:13:21,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:21,459 INFO L93 Difference]: Finished difference Result 2670 states and 9254 transitions. [2022-11-20 12:13:21,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:13:21,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-20 12:13:21,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:21,494 INFO L225 Difference]: With dead ends: 2670 [2022-11-20 12:13:21,494 INFO L226 Difference]: Without dead ends: 2190 [2022-11-20 12:13:21,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:13:21,496 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 55 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:21,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 12 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:13:21,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2022-11-20 12:13:21,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 2190. [2022-11-20 12:13:21,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2190 states, 2188 states have (on average 3.4597806215722122) internal successors, (7570), 2189 states have internal predecessors, (7570), 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) [2022-11-20 12:13:21,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2190 states to 2190 states and 7570 transitions. [2022-11-20 12:13:21,628 INFO L78 Accepts]: Start accepts. Automaton has 2190 states and 7570 transitions. Word has length 12 [2022-11-20 12:13:21,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:21,628 INFO L495 AbstractCegarLoop]: Abstraction has 2190 states and 7570 transitions. [2022-11-20 12:13:21,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-20 12:13:21,636 INFO L276 IsEmpty]: Start isEmpty. Operand 2190 states and 7570 transitions. [2022-11-20 12:13:21,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 12:13:21,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:21,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:13:21,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:21,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:21,841 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:21,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:21,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1615239940, now seen corresponding path program 1 times [2022-11-20 12:13:21,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:21,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263453533] [2022-11-20 12:13:21,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:13:21,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:21,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:21,849 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:21,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:13:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:13:22,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:13:22,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:22,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:22,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:22,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:22,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263453533] [2022-11-20 12:13:22,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263453533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:22,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:22,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:22,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641607895] [2022-11-20 12:13:22,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:22,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:13:22,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:22,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:13:22,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:13:22,106 INFO L87 Difference]: Start difference. First operand 2190 states and 7570 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-20 12:13:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:22,334 INFO L93 Difference]: Finished difference Result 1485 states and 4535 transitions. [2022-11-20 12:13:22,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:13:22,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2022-11-20 12:13:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:22,342 INFO L225 Difference]: With dead ends: 1485 [2022-11-20 12:13:22,342 INFO L226 Difference]: Without dead ends: 1185 [2022-11-20 12:13:22,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:13:22,343 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 89 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:22,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 20 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:13:22,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2022-11-20 12:13:22,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1185. [2022-11-20 12:13:22,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1183 states have (on average 3.0008453085376163) internal successors, (3550), 1184 states have internal predecessors, (3550), 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) [2022-11-20 12:13:22,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 3550 transitions. [2022-11-20 12:13:22,384 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 3550 transitions. Word has length 15 [2022-11-20 12:13:22,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:22,390 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 3550 transitions. [2022-11-20 12:13:22,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-20 12:13:22,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 3550 transitions. [2022-11-20 12:13:22,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 12:13:22,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:22,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:13:22,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:22,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:22,605 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:22,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:22,606 INFO L85 PathProgramCache]: Analyzing trace with hash -153218642, now seen corresponding path program 1 times [2022-11-20 12:13:22,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:22,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787260321] [2022-11-20 12:13:22,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:13:22,607 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:22,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:22,608 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:22,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:13:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:13:22,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:13:22,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:22,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:22,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:22,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:22,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787260321] [2022-11-20 12:13:22,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787260321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:22,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:22,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:13:22,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430409190] [2022-11-20 12:13:22,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:22,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:22,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:22,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:22,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:22,828 INFO L87 Difference]: Start difference. First operand 1185 states and 3550 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-20 12:13:23,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:23,132 INFO L93 Difference]: Finished difference Result 869 states and 2569 transitions. [2022-11-20 12:13:23,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:23,132 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2022-11-20 12:13:23,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:23,137 INFO L225 Difference]: With dead ends: 869 [2022-11-20 12:13:23,137 INFO L226 Difference]: Without dead ends: 770 [2022-11-20 12:13:23,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:13:23,138 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 119 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:23,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 40 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:13:23,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2022-11-20 12:13:23,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2022-11-20 12:13:23,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 768 states have (on average 3.0013020833333335) internal successors, (2305), 769 states have internal predecessors, (2305), 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) [2022-11-20 12:13:23,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 2305 transitions. [2022-11-20 12:13:23,160 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 2305 transitions. Word has length 18 [2022-11-20 12:13:23,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:23,161 INFO L495 AbstractCegarLoop]: Abstraction has 770 states and 2305 transitions. [2022-11-20 12:13:23,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-20 12:13:23,161 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 2305 transitions. [2022-11-20 12:13:23,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 12:13:23,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:23,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:13:23,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:23,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:23,376 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:23,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:23,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1927293532, now seen corresponding path program 1 times [2022-11-20 12:13:23,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:23,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971889578] [2022-11-20 12:13:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:13:23,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:23,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:23,382 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:23,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 12:13:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:13:23,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:13:23,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:23,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:23,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:23,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:23,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971889578] [2022-11-20 12:13:23,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971889578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:23,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:23,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:13:23,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142505152] [2022-11-20 12:13:23,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:23,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:13:23,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:23,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:13:23,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:13:23,610 INFO L87 Difference]: Start difference. First operand 770 states and 2305 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 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) [2022-11-20 12:13:23,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:23,973 INFO L93 Difference]: Finished difference Result 711 states and 2185 transitions. [2022-11-20 12:13:23,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:13:23,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 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 [2022-11-20 12:13:23,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:23,978 INFO L225 Difference]: With dead ends: 711 [2022-11-20 12:13:23,978 INFO L226 Difference]: Without dead ends: 695 [2022-11-20 12:13:23,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:13:23,979 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 129 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:23,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 64 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:13:23,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2022-11-20 12:13:24,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 695. [2022-11-20 12:13:24,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 693 states have (on average 3.10966810966811) internal successors, (2155), 694 states have internal predecessors, (2155), 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) [2022-11-20 12:13:24,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 2155 transitions. [2022-11-20 12:13:24,023 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 2155 transitions. Word has length 22 [2022-11-20 12:13:24,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:24,024 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 2155 transitions. [2022-11-20 12:13:24,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 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) [2022-11-20 12:13:24,024 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 2155 transitions. [2022-11-20 12:13:24,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:24,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:24,027 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:24,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:24,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:24,239 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:24,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:24,240 INFO L85 PathProgramCache]: Analyzing trace with hash -514284339, now seen corresponding path program 1 times [2022-11-20 12:13:24,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:24,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551794663] [2022-11-20 12:13:24,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:13:24,241 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:24,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:24,242 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:24,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 12:13:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:13:24,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:13:24,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:24,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:24,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:24,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551794663] [2022-11-20 12:13:24,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551794663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:24,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:24,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:24,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498692668] [2022-11-20 12:13:24,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:24,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:13:24,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:24,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:13:24,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:13:24,490 INFO L87 Difference]: Start difference. First operand 695 states and 2155 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2022-11-20 12:13:24,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:24,737 INFO L93 Difference]: Finished difference Result 971 states and 2931 transitions. [2022-11-20 12:13:24,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:13:24,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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 [2022-11-20 12:13:24,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:24,744 INFO L225 Difference]: With dead ends: 971 [2022-11-20 12:13:24,744 INFO L226 Difference]: Without dead ends: 971 [2022-11-20 12:13:24,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:13:24,745 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 32 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:24,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 16 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:13:24,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-11-20 12:13:24,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 970. [2022-11-20 12:13:24,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 968 states have (on average 3.027892561983471) internal successors, (2931), 969 states have internal predecessors, (2931), 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) [2022-11-20 12:13:24,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 2931 transitions. [2022-11-20 12:13:24,774 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 2931 transitions. Word has length 27 [2022-11-20 12:13:24,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:24,775 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 2931 transitions. [2022-11-20 12:13:24,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2022-11-20 12:13:24,775 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 2931 transitions. [2022-11-20 12:13:24,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:24,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:24,778 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:24,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:24,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:24,996 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:24,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:24,997 INFO L85 PathProgramCache]: Analyzing trace with hash -514284319, now seen corresponding path program 1 times [2022-11-20 12:13:24,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:24,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016390613] [2022-11-20 12:13:24,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:13:24,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:24,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:25,000 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:25,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 12:13:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:13:25,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:25,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:25,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:25,850 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:25,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:25,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016390613] [2022-11-20 12:13:25,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016390613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:25,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:25,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:25,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196300112] [2022-11-20 12:13:25,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:25,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:25,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:25,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:25,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:25,852 INFO L87 Difference]: Start difference. First operand 970 states and 2931 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:25,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:25,915 INFO L93 Difference]: Finished difference Result 1753 states and 5319 transitions. [2022-11-20 12:13:25,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:25,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:25,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:25,924 INFO L225 Difference]: With dead ends: 1753 [2022-11-20 12:13:25,924 INFO L226 Difference]: Without dead ends: 1736 [2022-11-20 12:13:25,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:25,925 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:25,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 45 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 50 Unchecked, 0.1s Time] [2022-11-20 12:13:25,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2022-11-20 12:13:25,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 987. [2022-11-20 12:13:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 985 states have (on average 2.997969543147208) internal successors, (2953), 986 states have internal predecessors, (2953), 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) [2022-11-20 12:13:25,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 2953 transitions. [2022-11-20 12:13:25,961 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 2953 transitions. Word has length 27 [2022-11-20 12:13:25,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:25,962 INFO L495 AbstractCegarLoop]: Abstraction has 987 states and 2953 transitions. [2022-11-20 12:13:25,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:25,962 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 2953 transitions. [2022-11-20 12:13:25,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:25,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:25,965 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:25,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:26,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:26,178 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:26,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:26,179 INFO L85 PathProgramCache]: Analyzing trace with hash 361922625, now seen corresponding path program 2 times [2022-11-20 12:13:26,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:26,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740427491] [2022-11-20 12:13:26,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:13:26,179 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:26,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:26,180 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:26,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 12:13:26,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:13:26,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:26,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:26,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:27,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:27,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:27,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:27,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740427491] [2022-11-20 12:13:27,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740427491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:27,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:27,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:27,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022834335] [2022-11-20 12:13:27,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:27,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:27,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:27,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:27,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:27,018 INFO L87 Difference]: Start difference. First operand 987 states and 2953 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:27,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:27,089 INFO L93 Difference]: Finished difference Result 1757 states and 5315 transitions. [2022-11-20 12:13:27,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:27,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:27,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:27,097 INFO L225 Difference]: With dead ends: 1757 [2022-11-20 12:13:27,097 INFO L226 Difference]: Without dead ends: 1745 [2022-11-20 12:13:27,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:27,098 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:27,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 45 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 52 Unchecked, 0.1s Time] [2022-11-20 12:13:27,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2022-11-20 12:13:27,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 985. [2022-11-20 12:13:27,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 983 states have (on average 2.9969481180061037) internal successors, (2946), 984 states have internal predecessors, (2946), 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) [2022-11-20 12:13:27,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 2946 transitions. [2022-11-20 12:13:27,133 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 2946 transitions. Word has length 27 [2022-11-20 12:13:27,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:27,133 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 2946 transitions. [2022-11-20 12:13:27,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:27,134 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 2946 transitions. [2022-11-20 12:13:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:27,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:27,137 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:27,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:27,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:27,350 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:27,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:27,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1242117601, now seen corresponding path program 3 times [2022-11-20 12:13:27,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:27,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091831322] [2022-11-20 12:13:27,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:13:27,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:27,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:27,352 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:27,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 12:13:27,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-20 12:13:27,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:27,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:27,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:28,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:28,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:28,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091831322] [2022-11-20 12:13:28,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091831322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:28,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:28,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:28,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825739788] [2022-11-20 12:13:28,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:28,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:28,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:28,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:28,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:28,162 INFO L87 Difference]: Start difference. First operand 985 states and 2946 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:28,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:28,236 INFO L93 Difference]: Finished difference Result 1768 states and 5334 transitions. [2022-11-20 12:13:28,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:28,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:28,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:28,244 INFO L225 Difference]: With dead ends: 1768 [2022-11-20 12:13:28,245 INFO L226 Difference]: Without dead ends: 1743 [2022-11-20 12:13:28,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:28,246 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:28,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 45 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 63 Unchecked, 0.1s Time] [2022-11-20 12:13:28,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2022-11-20 12:13:28,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 991. [2022-11-20 12:13:28,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 989 states have (on average 2.987866531850354) internal successors, (2955), 990 states have internal predecessors, (2955), 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) [2022-11-20 12:13:28,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 2955 transitions. [2022-11-20 12:13:28,280 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 2955 transitions. Word has length 27 [2022-11-20 12:13:28,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:28,280 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 2955 transitions. [2022-11-20 12:13:28,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:28,281 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 2955 transitions. [2022-11-20 12:13:28,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:28,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:28,284 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:28,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:28,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:28,497 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:28,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:28,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1237381727, now seen corresponding path program 4 times [2022-11-20 12:13:28,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:28,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470765914] [2022-11-20 12:13:28,504 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 12:13:28,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:28,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:28,506 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:28,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 12:13:28,751 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 12:13:28,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:28,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:28,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:29,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:29,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:29,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470765914] [2022-11-20 12:13:29,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470765914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:29,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:29,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:29,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137528495] [2022-11-20 12:13:29,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:29,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:29,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:29,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:29,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:29,314 INFO L87 Difference]: Start difference. First operand 991 states and 2955 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:29,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:29,400 INFO L93 Difference]: Finished difference Result 1586 states and 4719 transitions. [2022-11-20 12:13:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:29,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:29,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:29,413 INFO L225 Difference]: With dead ends: 1586 [2022-11-20 12:13:29,414 INFO L226 Difference]: Without dead ends: 1132 [2022-11-20 12:13:29,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:29,415 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 73 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:29,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 45 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 73 Unchecked, 0.1s Time] [2022-11-20 12:13:29,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-11-20 12:13:29,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1107. [2022-11-20 12:13:29,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1105 states have (on average 2.9031674208144795) internal successors, (3208), 1106 states have internal predecessors, (3208), 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) [2022-11-20 12:13:29,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 3208 transitions. [2022-11-20 12:13:29,447 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 3208 transitions. Word has length 27 [2022-11-20 12:13:29,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:29,447 INFO L495 AbstractCegarLoop]: Abstraction has 1107 states and 3208 transitions. [2022-11-20 12:13:29,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:29,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 3208 transitions. [2022-11-20 12:13:29,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:29,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:29,451 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:29,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:29,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:29,666 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:29,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:29,667 INFO L85 PathProgramCache]: Analyzing trace with hash 296076407, now seen corresponding path program 5 times [2022-11-20 12:13:29,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:29,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760124156] [2022-11-20 12:13:29,667 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 12:13:29,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:29,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:29,668 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:29,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 12:13:29,901 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:13:29,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:29,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 12:13:29,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:30,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:30,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:30,441 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:30,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760124156] [2022-11-20 12:13:30,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760124156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:30,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:30,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:30,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749914566] [2022-11-20 12:13:30,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:30,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:30,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:30,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:30,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:30,443 INFO L87 Difference]: Start difference. First operand 1107 states and 3208 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:30,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:30,589 INFO L93 Difference]: Finished difference Result 1795 states and 5222 transitions. [2022-11-20 12:13:30,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:30,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:30,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:30,597 INFO L225 Difference]: With dead ends: 1795 [2022-11-20 12:13:30,597 INFO L226 Difference]: Without dead ends: 1746 [2022-11-20 12:13:30,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:30,598 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:30,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 45 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 43 Unchecked, 0.1s Time] [2022-11-20 12:13:30,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-11-20 12:13:30,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1103. [2022-11-20 12:13:30,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 1101 states have (on average 2.899182561307902) internal successors, (3192), 1102 states have internal predecessors, (3192), 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) [2022-11-20 12:13:30,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 3192 transitions. [2022-11-20 12:13:30,645 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 3192 transitions. Word has length 27 [2022-11-20 12:13:30,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:30,645 INFO L495 AbstractCegarLoop]: Abstraction has 1103 states and 3192 transitions. [2022-11-20 12:13:30,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:30,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 3192 transitions. [2022-11-20 12:13:30,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:30,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:30,649 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:30,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-11-20 12:13:30,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:30,862 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:30,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:30,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1723490069, now seen corresponding path program 6 times [2022-11-20 12:13:30,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:30,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819898671] [2022-11-20 12:13:30,863 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-20 12:13:30,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:30,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:30,864 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:30,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 12:13:31,073 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-20 12:13:31,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:31,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:31,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:31,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:31,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:31,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:31,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819898671] [2022-11-20 12:13:31,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819898671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:31,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:31,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:31,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986837198] [2022-11-20 12:13:31,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:31,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:31,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:31,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:31,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:31,626 INFO L87 Difference]: Start difference. First operand 1103 states and 3192 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:31,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:31,700 INFO L93 Difference]: Finished difference Result 1815 states and 5261 transitions. [2022-11-20 12:13:31,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:31,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:31,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:31,707 INFO L225 Difference]: With dead ends: 1815 [2022-11-20 12:13:31,707 INFO L226 Difference]: Without dead ends: 1741 [2022-11-20 12:13:31,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:31,708 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:31,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 45 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 59 Unchecked, 0.1s Time] [2022-11-20 12:13:31,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2022-11-20 12:13:31,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1095. [2022-11-20 12:13:31,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1093 states have (on average 2.898444647758463) internal successors, (3168), 1094 states have internal predecessors, (3168), 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) [2022-11-20 12:13:31,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 3168 transitions. [2022-11-20 12:13:31,741 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 3168 transitions. Word has length 27 [2022-11-20 12:13:31,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:31,742 INFO L495 AbstractCegarLoop]: Abstraction has 1095 states and 3168 transitions. [2022-11-20 12:13:31,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:31,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 3168 transitions. [2022-11-20 12:13:31,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:31,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:31,745 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:31,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:31,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:31,958 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:31,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:31,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1683477617, now seen corresponding path program 7 times [2022-11-20 12:13:31,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:31,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641075331] [2022-11-20 12:13:31,959 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-20 12:13:31,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:31,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:31,960 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:31,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 12:13:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:13:32,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 12:13:32,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:32,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:32,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:32,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:32,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641075331] [2022-11-20 12:13:32,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641075331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:32,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:32,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:32,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413396584] [2022-11-20 12:13:32,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:32,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:32,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:32,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:32,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:32,746 INFO L87 Difference]: Start difference. First operand 1095 states and 3168 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:32,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:32,899 INFO L93 Difference]: Finished difference Result 1804 states and 5235 transitions. [2022-11-20 12:13:32,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:32,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:32,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:32,906 INFO L225 Difference]: With dead ends: 1804 [2022-11-20 12:13:32,906 INFO L226 Difference]: Without dead ends: 1739 [2022-11-20 12:13:32,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:32,907 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:32,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 45 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 43 Unchecked, 0.1s Time] [2022-11-20 12:13:32,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2022-11-20 12:13:32,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1089. [2022-11-20 12:13:32,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1087 states have (on average 2.894204231830727) internal successors, (3146), 1088 states have internal predecessors, (3146), 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) [2022-11-20 12:13:32,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 3146 transitions. [2022-11-20 12:13:32,941 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 3146 transitions. Word has length 27 [2022-11-20 12:13:32,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:32,942 INFO L495 AbstractCegarLoop]: Abstraction has 1089 states and 3146 transitions. [2022-11-20 12:13:32,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:32,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 3146 transitions. [2022-11-20 12:13:32,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:32,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:32,945 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:32,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:33,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:33,167 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:33,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:33,168 INFO L85 PathProgramCache]: Analyzing trace with hash 297362289, now seen corresponding path program 8 times [2022-11-20 12:13:33,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:33,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411011691] [2022-11-20 12:13:33,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:13:33,169 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:33,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:33,169 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:33,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 12:13:33,389 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:13:33,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:33,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 12:13:33,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:33,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:33,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:33,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:33,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411011691] [2022-11-20 12:13:33,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411011691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:33,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:33,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:33,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263791854] [2022-11-20 12:13:33,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:33,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:33,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:33,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:33,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:33,913 INFO L87 Difference]: Start difference. First operand 1089 states and 3146 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:34,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:34,076 INFO L93 Difference]: Finished difference Result 1826 states and 5265 transitions. [2022-11-20 12:13:34,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:34,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:34,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:34,082 INFO L225 Difference]: With dead ends: 1826 [2022-11-20 12:13:34,082 INFO L226 Difference]: Without dead ends: 1727 [2022-11-20 12:13:34,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:34,083 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:34,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 45 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 36 Unchecked, 0.2s Time] [2022-11-20 12:13:34,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2022-11-20 12:13:34,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1077. [2022-11-20 12:13:34,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1075 states have (on average 2.8967441860465115) internal successors, (3114), 1076 states have internal predecessors, (3114), 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) [2022-11-20 12:13:34,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 3114 transitions. [2022-11-20 12:13:34,116 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 3114 transitions. Word has length 27 [2022-11-20 12:13:34,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:34,117 INFO L495 AbstractCegarLoop]: Abstraction has 1077 states and 3114 transitions. [2022-11-20 12:13:34,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:34,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 3114 transitions. [2022-11-20 12:13:34,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:34,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:34,120 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:34,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:34,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:34,334 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:34,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:34,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1034856347, now seen corresponding path program 9 times [2022-11-20 12:13:34,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:34,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965974063] [2022-11-20 12:13:34,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:13:34,335 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:34,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:34,336 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:34,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 12:13:34,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-20 12:13:34,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:34,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 12:13:34,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:35,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:35,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:35,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:35,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965974063] [2022-11-20 12:13:35,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965974063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:35,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:35,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:35,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868703334] [2022-11-20 12:13:35,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:35,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:35,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:35,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:35,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:35,090 INFO L87 Difference]: Start difference. First operand 1077 states and 3114 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:35,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:35,234 INFO L93 Difference]: Finished difference Result 1849 states and 5340 transitions. [2022-11-20 12:13:35,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:35,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:35,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:35,239 INFO L225 Difference]: With dead ends: 1849 [2022-11-20 12:13:35,240 INFO L226 Difference]: Without dead ends: 1666 [2022-11-20 12:13:35,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:35,241 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:35,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 45 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 39 Unchecked, 0.1s Time] [2022-11-20 12:13:35,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-11-20 12:13:35,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1065. [2022-11-20 12:13:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 1063 states have (on average 2.8861712135465662) internal successors, (3068), 1064 states have internal predecessors, (3068), 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) [2022-11-20 12:13:35,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 3068 transitions. [2022-11-20 12:13:35,273 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 3068 transitions. Word has length 27 [2022-11-20 12:13:35,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:35,273 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 3068 transitions. [2022-11-20 12:13:35,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:35,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 3068 transitions. [2022-11-20 12:13:35,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:35,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:35,277 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:35,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:35,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:35,490 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:35,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:35,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1959960387, now seen corresponding path program 10 times [2022-11-20 12:13:35,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:35,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747045829] [2022-11-20 12:13:35,491 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 12:13:35,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:35,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:35,492 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:35,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 12:13:35,716 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 12:13:35,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:35,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:35,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:36,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:36,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:36,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:36,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747045829] [2022-11-20 12:13:36,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747045829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:36,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:36,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:36,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939714283] [2022-11-20 12:13:36,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:36,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:36,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:36,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:36,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:36,274 INFO L87 Difference]: Start difference. First operand 1065 states and 3068 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:36,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:36,342 INFO L93 Difference]: Finished difference Result 1858 states and 5343 transitions. [2022-11-20 12:13:36,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:36,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:36,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:36,348 INFO L225 Difference]: With dead ends: 1858 [2022-11-20 12:13:36,348 INFO L226 Difference]: Without dead ends: 1579 [2022-11-20 12:13:36,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:36,349 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:36,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 45 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 53 Unchecked, 0.1s Time] [2022-11-20 12:13:36,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-11-20 12:13:36,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1041. [2022-11-20 12:13:36,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1039 states have (on average 2.8873917228103947) internal successors, (3000), 1040 states have internal predecessors, (3000), 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) [2022-11-20 12:13:36,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 3000 transitions. [2022-11-20 12:13:36,394 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 3000 transitions. Word has length 27 [2022-11-20 12:13:36,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:36,394 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 3000 transitions. [2022-11-20 12:13:36,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:36,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 3000 transitions. [2022-11-20 12:13:36,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:36,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:36,398 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:36,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:36,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:36,611 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:36,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:36,612 INFO L85 PathProgramCache]: Analyzing trace with hash 219182925, now seen corresponding path program 2 times [2022-11-20 12:13:36,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:36,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543322824] [2022-11-20 12:13:36,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:13:36,612 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:36,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:36,613 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:36,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-20 12:13:36,775 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:13:36,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:36,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:13:36,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:36,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:36,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:36,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:36,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543322824] [2022-11-20 12:13:36,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543322824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:36,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:36,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:36,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681456603] [2022-11-20 12:13:36,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:36,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:13:36,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:36,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:13:36,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:13:36,857 INFO L87 Difference]: Start difference. First operand 1041 states and 3000 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2022-11-20 12:13:37,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:37,078 INFO L93 Difference]: Finished difference Result 1390 states and 3930 transitions. [2022-11-20 12:13:37,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:13:37,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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 [2022-11-20 12:13:37,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:37,082 INFO L225 Difference]: With dead ends: 1390 [2022-11-20 12:13:37,082 INFO L226 Difference]: Without dead ends: 1031 [2022-11-20 12:13:37,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:13:37,083 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 29 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:37,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 25 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:13:37,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-11-20 12:13:37,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 748. [2022-11-20 12:13:37,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 746 states have (on average 2.8230563002680964) internal successors, (2106), 747 states have internal predecessors, (2106), 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) [2022-11-20 12:13:37,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 2106 transitions. [2022-11-20 12:13:37,103 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 2106 transitions. Word has length 27 [2022-11-20 12:13:37,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:37,103 INFO L495 AbstractCegarLoop]: Abstraction has 748 states and 2106 transitions. [2022-11-20 12:13:37,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2022-11-20 12:13:37,103 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 2106 transitions. [2022-11-20 12:13:37,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:37,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:37,106 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:37,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:37,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:37,318 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:37,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:37,319 INFO L85 PathProgramCache]: Analyzing trace with hash -455206659, now seen corresponding path program 11 times [2022-11-20 12:13:37,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:37,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769962893] [2022-11-20 12:13:37,319 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 12:13:37,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:37,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:37,321 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:37,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-20 12:13:37,521 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:13:37,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:37,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:37,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:38,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:38,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:38,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:38,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769962893] [2022-11-20 12:13:38,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769962893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:38,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:38,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:38,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727263938] [2022-11-20 12:13:38,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:38,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:38,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:38,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:38,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:38,069 INFO L87 Difference]: Start difference. First operand 748 states and 2106 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:38,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:38,132 INFO L93 Difference]: Finished difference Result 1180 states and 3409 transitions. [2022-11-20 12:13:38,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:38,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:38,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:38,137 INFO L225 Difference]: With dead ends: 1180 [2022-11-20 12:13:38,137 INFO L226 Difference]: Without dead ends: 1107 [2022-11-20 12:13:38,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:38,138 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:38,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 47 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 48 Unchecked, 0.1s Time] [2022-11-20 12:13:38,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2022-11-20 12:13:38,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 748. [2022-11-20 12:13:38,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 746 states have (on average 2.82171581769437) internal successors, (2105), 747 states have internal predecessors, (2105), 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) [2022-11-20 12:13:38,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 2105 transitions. [2022-11-20 12:13:38,158 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 2105 transitions. Word has length 27 [2022-11-20 12:13:38,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:38,158 INFO L495 AbstractCegarLoop]: Abstraction has 748 states and 2105 transitions. [2022-11-20 12:13:38,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 2105 transitions. [2022-11-20 12:13:38,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:38,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:38,161 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:38,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:38,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:38,380 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:38,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:38,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1834762559, now seen corresponding path program 12 times [2022-11-20 12:13:38,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:38,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533939721] [2022-11-20 12:13:38,381 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-20 12:13:38,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:38,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:38,382 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:38,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-20 12:13:38,595 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-20 12:13:38,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:38,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:38,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:39,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:39,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:39,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:39,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533939721] [2022-11-20 12:13:39,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533939721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:39,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:39,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:39,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899983760] [2022-11-20 12:13:39,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:39,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:39,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:39,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:39,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:39,109 INFO L87 Difference]: Start difference. First operand 748 states and 2105 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:39,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:39,170 INFO L93 Difference]: Finished difference Result 1149 states and 3322 transitions. [2022-11-20 12:13:39,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:39,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:39,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:39,174 INFO L225 Difference]: With dead ends: 1149 [2022-11-20 12:13:39,174 INFO L226 Difference]: Without dead ends: 1109 [2022-11-20 12:13:39,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:39,175 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:39,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 47 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 48 Unchecked, 0.1s Time] [2022-11-20 12:13:39,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-11-20 12:13:39,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 746. [2022-11-20 12:13:39,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 744 states have (on average 2.8225806451612905) internal successors, (2100), 745 states have internal predecessors, (2100), 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) [2022-11-20 12:13:39,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 2100 transitions. [2022-11-20 12:13:39,195 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 2100 transitions. Word has length 27 [2022-11-20 12:13:39,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:39,195 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 2100 transitions. [2022-11-20 12:13:39,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:39,195 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 2100 transitions. [2022-11-20 12:13:39,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:39,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:39,198 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:39,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:39,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:39,411 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:39,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:39,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1893607933, now seen corresponding path program 13 times [2022-11-20 12:13:39,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:39,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901118955] [2022-11-20 12:13:39,412 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-20 12:13:39,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:39,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:39,414 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:39,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-20 12:13:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:13:39,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:39,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:40,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:40,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:40,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:40,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901118955] [2022-11-20 12:13:40,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901118955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:40,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:40,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:40,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731019372] [2022-11-20 12:13:40,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:40,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:40,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:40,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:40,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:40,175 INFO L87 Difference]: Start difference. First operand 746 states and 2100 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:40,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:40,256 INFO L93 Difference]: Finished difference Result 1196 states and 3446 transitions. [2022-11-20 12:13:40,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:40,257 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:40,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:40,260 INFO L225 Difference]: With dead ends: 1196 [2022-11-20 12:13:40,261 INFO L226 Difference]: Without dead ends: 1082 [2022-11-20 12:13:40,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:40,263 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:40,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 47 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 63 Unchecked, 0.1s Time] [2022-11-20 12:13:40,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2022-11-20 12:13:40,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 740. [2022-11-20 12:13:40,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 738 states have (on average 2.8292682926829267) internal successors, (2088), 739 states have internal predecessors, (2088), 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) [2022-11-20 12:13:40,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 2088 transitions. [2022-11-20 12:13:40,284 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 2088 transitions. Word has length 27 [2022-11-20 12:13:40,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:40,286 INFO L495 AbstractCegarLoop]: Abstraction has 740 states and 2088 transitions. [2022-11-20 12:13:40,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:40,287 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 2088 transitions. [2022-11-20 12:13:40,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:40,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:40,289 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:40,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:40,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:40,502 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:40,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:40,503 INFO L85 PathProgramCache]: Analyzing trace with hash -473596525, now seen corresponding path program 14 times [2022-11-20 12:13:40,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:40,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845087480] [2022-11-20 12:13:40,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:13:40,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:40,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:40,505 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:40,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-20 12:13:40,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:13:40,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:40,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:40,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:41,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:41,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:41,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:41,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845087480] [2022-11-20 12:13:41,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1845087480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:41,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:41,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:41,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680235520] [2022-11-20 12:13:41,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:41,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:41,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:41,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:41,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:41,278 INFO L87 Difference]: Start difference. First operand 740 states and 2088 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:41,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:41,333 INFO L93 Difference]: Finished difference Result 1172 states and 3391 transitions. [2022-11-20 12:13:41,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:41,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:41,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:41,336 INFO L225 Difference]: With dead ends: 1172 [2022-11-20 12:13:41,336 INFO L226 Difference]: Without dead ends: 959 [2022-11-20 12:13:41,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:41,337 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:41,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 47 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 44 Unchecked, 0.0s Time] [2022-11-20 12:13:41,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-11-20 12:13:41,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 740. [2022-11-20 12:13:41,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 738 states have (on average 2.8265582655826558) internal successors, (2086), 739 states have internal predecessors, (2086), 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) [2022-11-20 12:13:41,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 2086 transitions. [2022-11-20 12:13:41,357 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 2086 transitions. Word has length 27 [2022-11-20 12:13:41,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:41,357 INFO L495 AbstractCegarLoop]: Abstraction has 740 states and 2086 transitions. [2022-11-20 12:13:41,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:41,358 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 2086 transitions. [2022-11-20 12:13:41,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:41,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:41,360 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:41,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:41,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:41,573 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:41,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:41,573 INFO L85 PathProgramCache]: Analyzing trace with hash -54523687, now seen corresponding path program 15 times [2022-11-20 12:13:41,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:41,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93934652] [2022-11-20 12:13:41,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:13:41,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:41,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:41,576 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:41,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-20 12:13:41,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-20 12:13:41,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:41,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:41,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:42,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:42,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:42,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:42,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93934652] [2022-11-20 12:13:42,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [93934652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:42,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:42,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:42,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824762044] [2022-11-20 12:13:42,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:42,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:42,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:42,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:42,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:42,359 INFO L87 Difference]: Start difference. First operand 740 states and 2086 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:42,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:42,416 INFO L93 Difference]: Finished difference Result 1071 states and 3047 transitions. [2022-11-20 12:13:42,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:42,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:42,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:42,419 INFO L225 Difference]: With dead ends: 1071 [2022-11-20 12:13:42,419 INFO L226 Difference]: Without dead ends: 959 [2022-11-20 12:13:42,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:42,420 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:42,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 47 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 46 Unchecked, 0.1s Time] [2022-11-20 12:13:42,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-11-20 12:13:42,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 736. [2022-11-20 12:13:42,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 734 states have (on average 2.8283378746594003) internal successors, (2076), 735 states have internal predecessors, (2076), 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) [2022-11-20 12:13:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 2076 transitions. [2022-11-20 12:13:42,440 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 2076 transitions. Word has length 27 [2022-11-20 12:13:42,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:42,441 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 2076 transitions. [2022-11-20 12:13:42,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 2076 transitions. [2022-11-20 12:13:42,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:42,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:42,443 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:42,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:42,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:42,656 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:42,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:42,656 INFO L85 PathProgramCache]: Analyzing trace with hash 296720689, now seen corresponding path program 16 times [2022-11-20 12:13:42,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:42,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482225604] [2022-11-20 12:13:42,657 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 12:13:42,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:42,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:42,659 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:42,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-20 12:13:42,936 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 12:13:42,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:42,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 12:13:42,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:43,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:43,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:43,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:43,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482225604] [2022-11-20 12:13:43,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482225604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:43,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:43,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:43,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145016022] [2022-11-20 12:13:43,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:43,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:43,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:43,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:43,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:43,479 INFO L87 Difference]: Start difference. First operand 736 states and 2076 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:43,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:43,622 INFO L93 Difference]: Finished difference Result 1054 states and 3021 transitions. [2022-11-20 12:13:43,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:43,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:43,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:43,623 INFO L225 Difference]: With dead ends: 1054 [2022-11-20 12:13:43,624 INFO L226 Difference]: Without dead ends: 724 [2022-11-20 12:13:43,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:43,624 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:43,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 45 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 38 Unchecked, 0.1s Time] [2022-11-20 12:13:43,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2022-11-20 12:13:43,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 724. [2022-11-20 12:13:43,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 722 states have (on average 2.8421052631578947) internal successors, (2052), 723 states have internal predecessors, (2052), 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) [2022-11-20 12:13:43,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 2052 transitions. [2022-11-20 12:13:43,641 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 2052 transitions. Word has length 27 [2022-11-20 12:13:43,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:43,642 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 2052 transitions. [2022-11-20 12:13:43,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:43,642 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 2052 transitions. [2022-11-20 12:13:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:43,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:43,644 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:43,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:43,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:43,857 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:43,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:43,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1233216617, now seen corresponding path program 17 times [2022-11-20 12:13:43,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:43,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965788717] [2022-11-20 12:13:43,857 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 12:13:43,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:43,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:43,859 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:43,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-20 12:13:44,083 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:13:44,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:44,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:44,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:44,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:44,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:44,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:44,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965788717] [2022-11-20 12:13:44,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965788717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:44,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:44,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:44,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773430432] [2022-11-20 12:13:44,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:44,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:44,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:44,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:44,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:44,640 INFO L87 Difference]: Start difference. First operand 724 states and 2052 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:44,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:44,695 INFO L93 Difference]: Finished difference Result 1137 states and 3296 transitions. [2022-11-20 12:13:44,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:44,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:44,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:44,698 INFO L225 Difference]: With dead ends: 1137 [2022-11-20 12:13:44,699 INFO L226 Difference]: Without dead ends: 1078 [2022-11-20 12:13:44,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:44,700 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:44,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 34 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 39 Unchecked, 0.0s Time] [2022-11-20 12:13:44,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-11-20 12:13:44,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 724. [2022-11-20 12:13:44,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 722 states have (on average 2.8407202216066483) internal successors, (2051), 723 states have internal predecessors, (2051), 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) [2022-11-20 12:13:44,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 2051 transitions. [2022-11-20 12:13:44,719 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 2051 transitions. Word has length 27 [2022-11-20 12:13:44,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:44,719 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 2051 transitions. [2022-11-20 12:13:44,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:44,719 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 2051 transitions. [2022-11-20 12:13:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:44,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:44,721 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:44,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:44,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:44,934 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:44,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:44,935 INFO L85 PathProgramCache]: Analyzing trace with hash 696952951, now seen corresponding path program 18 times [2022-11-20 12:13:44,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:44,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078652737] [2022-11-20 12:13:44,935 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-20 12:13:44,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:44,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:44,936 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:44,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-20 12:13:45,151 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-20 12:13:45,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:45,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 12:13:45,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:45,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:45,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:45,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:45,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078652737] [2022-11-20 12:13:45,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078652737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:45,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:45,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:45,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968733304] [2022-11-20 12:13:45,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:45,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:45,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:45,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:45,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:45,643 INFO L87 Difference]: Start difference. First operand 724 states and 2051 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:45,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:45,768 INFO L93 Difference]: Finished difference Result 1109 states and 3222 transitions. [2022-11-20 12:13:45,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:45,768 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:45,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:45,771 INFO L225 Difference]: With dead ends: 1109 [2022-11-20 12:13:45,771 INFO L226 Difference]: Without dead ends: 1076 [2022-11-20 12:13:45,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:45,772 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:45,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 34 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 30 Unchecked, 0.1s Time] [2022-11-20 12:13:45,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2022-11-20 12:13:45,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 722. [2022-11-20 12:13:45,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 720 states have (on average 2.841666666666667) internal successors, (2046), 721 states have internal predecessors, (2046), 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) [2022-11-20 12:13:45,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 2046 transitions. [2022-11-20 12:13:45,790 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 2046 transitions. Word has length 27 [2022-11-20 12:13:45,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:45,791 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 2046 transitions. [2022-11-20 12:13:45,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:45,791 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 2046 transitions. [2022-11-20 12:13:45,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:45,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:45,793 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:45,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:46,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:46,006 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:46,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:46,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1850185065, now seen corresponding path program 19 times [2022-11-20 12:13:46,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:46,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319513366] [2022-11-20 12:13:46,007 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-20 12:13:46,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:46,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:46,008 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:46,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-20 12:13:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:13:46,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:46,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:46,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:46,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:46,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319513366] [2022-11-20 12:13:46,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319513366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:46,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:46,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:46,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776566464] [2022-11-20 12:13:46,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:46,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:46,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:46,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:46,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:46,752 INFO L87 Difference]: Start difference. First operand 722 states and 2046 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:46,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:46,805 INFO L93 Difference]: Finished difference Result 1135 states and 3290 transitions. [2022-11-20 12:13:46,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:46,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:46,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:46,808 INFO L225 Difference]: With dead ends: 1135 [2022-11-20 12:13:46,809 INFO L226 Difference]: Without dead ends: 1044 [2022-11-20 12:13:46,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:46,810 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:46,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 34 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 42 Unchecked, 0.0s Time] [2022-11-20 12:13:46,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-11-20 12:13:46,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 718. [2022-11-20 12:13:46,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 716 states have (on average 2.846368715083799) internal successors, (2038), 717 states have internal predecessors, (2038), 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) [2022-11-20 12:13:46,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 2038 transitions. [2022-11-20 12:13:46,828 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 2038 transitions. Word has length 27 [2022-11-20 12:13:46,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:46,828 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 2038 transitions. [2022-11-20 12:13:46,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:46,829 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 2038 transitions. [2022-11-20 12:13:46,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:46,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:46,831 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:46,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-11-20 12:13:47,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:47,043 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:47,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:47,044 INFO L85 PathProgramCache]: Analyzing trace with hash -104462369, now seen corresponding path program 20 times [2022-11-20 12:13:47,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:47,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57691571] [2022-11-20 12:13:47,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:13:47,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:47,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:47,045 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:47,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-20 12:13:47,262 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:13:47,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:47,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:13:47,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:47,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:47,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:47,781 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:47,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57691571] [2022-11-20 12:13:47,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57691571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:47,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:47,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:47,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931887302] [2022-11-20 12:13:47,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:47,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:47,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:47,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:47,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:47,782 INFO L87 Difference]: Start difference. First operand 718 states and 2038 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:47,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:47,825 INFO L93 Difference]: Finished difference Result 1131 states and 3282 transitions. [2022-11-20 12:13:47,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:47,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:47,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:47,827 INFO L225 Difference]: With dead ends: 1131 [2022-11-20 12:13:47,827 INFO L226 Difference]: Without dead ends: 904 [2022-11-20 12:13:47,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:47,828 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:47,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 34 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 38 Unchecked, 0.0s Time] [2022-11-20 12:13:47,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2022-11-20 12:13:47,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 718. [2022-11-20 12:13:47,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 716 states have (on average 2.8421787709497206) internal successors, (2035), 717 states have internal predecessors, (2035), 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) [2022-11-20 12:13:47,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 2035 transitions. [2022-11-20 12:13:47,843 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 2035 transitions. Word has length 27 [2022-11-20 12:13:47,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:47,843 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 2035 transitions. [2022-11-20 12:13:47,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:47,848 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 2035 transitions. [2022-11-20 12:13:47,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:47,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:47,850 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:47,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2022-11-20 12:13:48,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:48,059 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:48,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:48,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1248467613, now seen corresponding path program 21 times [2022-11-20 12:13:48,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:48,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806375661] [2022-11-20 12:13:48,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:13:48,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:48,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:48,061 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:48,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-20 12:13:48,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-20 12:13:48,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:48,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 12:13:48,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:48,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:48,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:48,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:48,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806375661] [2022-11-20 12:13:48,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806375661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:48,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:48,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:48,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079222197] [2022-11-20 12:13:48,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:48,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:48,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:48,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:48,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:48,805 INFO L87 Difference]: Start difference. First operand 718 states and 2035 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:48,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:48,911 INFO L93 Difference]: Finished difference Result 1019 states and 2903 transitions. [2022-11-20 12:13:48,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:48,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:48,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:48,914 INFO L225 Difference]: With dead ends: 1019 [2022-11-20 12:13:48,914 INFO L226 Difference]: Without dead ends: 898 [2022-11-20 12:13:48,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:48,915 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:48,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 34 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 32 Unchecked, 0.1s Time] [2022-11-20 12:13:48,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-11-20 12:13:48,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 712. [2022-11-20 12:13:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 710 states have (on average 2.8450704225352115) internal successors, (2020), 711 states have internal predecessors, (2020), 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) [2022-11-20 12:13:48,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 2020 transitions. [2022-11-20 12:13:48,931 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 2020 transitions. Word has length 27 [2022-11-20 12:13:48,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:48,931 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 2020 transitions. [2022-11-20 12:13:48,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:48,932 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 2020 transitions. [2022-11-20 12:13:48,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:48,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:48,934 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:48,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:49,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:49,146 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:49,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:49,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2050615073, now seen corresponding path program 22 times [2022-11-20 12:13:49,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:49,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399758787] [2022-11-20 12:13:49,147 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 12:13:49,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:49,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:49,148 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:49,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-20 12:13:49,405 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 12:13:49,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:49,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 12:13:49,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:49,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:49,945 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:49,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:49,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399758787] [2022-11-20 12:13:49,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399758787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:49,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:49,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:49,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187489314] [2022-11-20 12:13:49,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:49,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:49,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:49,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:49,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:49,948 INFO L87 Difference]: Start difference. First operand 712 states and 2020 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:50,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:50,050 INFO L93 Difference]: Finished difference Result 1051 states and 3039 transitions. [2022-11-20 12:13:50,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:50,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:50,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:50,052 INFO L225 Difference]: With dead ends: 1051 [2022-11-20 12:13:50,052 INFO L226 Difference]: Without dead ends: 700 [2022-11-20 12:13:50,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:50,053 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:50,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 34 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 28 Unchecked, 0.1s Time] [2022-11-20 12:13:50,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-11-20 12:13:50,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2022-11-20 12:13:50,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 698 states have (on average 2.859598853868195) internal successors, (1996), 699 states have internal predecessors, (1996), 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) [2022-11-20 12:13:50,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1996 transitions. [2022-11-20 12:13:50,062 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1996 transitions. Word has length 27 [2022-11-20 12:13:50,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:50,062 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 1996 transitions. [2022-11-20 12:13:50,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:50,063 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1996 transitions. [2022-11-20 12:13:50,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:50,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:50,065 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:50,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:50,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:50,277 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:50,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:50,278 INFO L85 PathProgramCache]: Analyzing trace with hash -534245481, now seen corresponding path program 23 times [2022-11-20 12:13:50,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:50,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324532196] [2022-11-20 12:13:50,278 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 12:13:50,278 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:50,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:50,279 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:50,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-20 12:13:50,545 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:13:50,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:50,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 12:13:50,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:51,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:51,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:51,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:51,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324532196] [2022-11-20 12:13:51,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324532196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:51,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:51,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:51,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053787525] [2022-11-20 12:13:51,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:51,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:51,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:51,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:51,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:51,131 INFO L87 Difference]: Start difference. First operand 700 states and 1996 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:51,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:51,219 INFO L93 Difference]: Finished difference Result 1052 states and 2984 transitions. [2022-11-20 12:13:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:51,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:51,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:51,221 INFO L225 Difference]: With dead ends: 1052 [2022-11-20 12:13:51,221 INFO L226 Difference]: Without dead ends: 783 [2022-11-20 12:13:51,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:51,222 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:51,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 20 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 28 Unchecked, 0.1s Time] [2022-11-20 12:13:51,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2022-11-20 12:13:51,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 700. [2022-11-20 12:13:51,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 698 states have (on average 2.859598853868195) internal successors, (1996), 699 states have internal predecessors, (1996), 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) [2022-11-20 12:13:51,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1996 transitions. [2022-11-20 12:13:51,236 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1996 transitions. Word has length 27 [2022-11-20 12:13:51,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:51,237 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 1996 transitions. [2022-11-20 12:13:51,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:51,237 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1996 transitions. [2022-11-20 12:13:51,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:51,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:51,239 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:51,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2022-11-20 12:13:51,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:51,443 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:51,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:51,443 INFO L85 PathProgramCache]: Analyzing trace with hash -198304033, now seen corresponding path program 3 times [2022-11-20 12:13:51,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:51,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943380958] [2022-11-20 12:13:51,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:13:51,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:51,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:51,445 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:51,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-20 12:13:51,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-20 12:13:51,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:51,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:13:51,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:51,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:51,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:51,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:51,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943380958] [2022-11-20 12:13:51,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943380958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:51,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:51,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:51,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750901500] [2022-11-20 12:13:51,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:51,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:13:51,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:51,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:13:51,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:13:51,652 INFO L87 Difference]: Start difference. First operand 700 states and 1996 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2022-11-20 12:13:51,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:51,851 INFO L93 Difference]: Finished difference Result 739 states and 2082 transitions. [2022-11-20 12:13:51,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:13:51,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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 [2022-11-20 12:13:51,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:51,853 INFO L225 Difference]: With dead ends: 739 [2022-11-20 12:13:51,853 INFO L226 Difference]: Without dead ends: 614 [2022-11-20 12:13:51,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:13:51,854 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 25 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:51,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 19 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:13:51,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-11-20 12:13:51,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 512. [2022-11-20 12:13:51,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 510 states have (on average 2.896078431372549) internal successors, (1477), 511 states have internal predecessors, (1477), 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) [2022-11-20 12:13:51,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 1477 transitions. [2022-11-20 12:13:51,863 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 1477 transitions. Word has length 27 [2022-11-20 12:13:51,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:51,863 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 1477 transitions. [2022-11-20 12:13:51,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2022-11-20 12:13:51,863 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 1477 transitions. [2022-11-20 12:13:51,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:51,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:51,865 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:51,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2022-11-20 12:13:52,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:52,067 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:52,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:52,067 INFO L85 PathProgramCache]: Analyzing trace with hash -605921641, now seen corresponding path program 24 times [2022-11-20 12:13:52,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:52,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718492445] [2022-11-20 12:13:52,068 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-20 12:13:52,068 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:52,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:52,070 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:52,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-20 12:13:52,315 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-20 12:13:52,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:52,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 12:13:52,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:52,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:52,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:52,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:52,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718492445] [2022-11-20 12:13:52,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718492445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:52,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:52,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:13:52,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363580367] [2022-11-20 12:13:52,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:52,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:13:52,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:52,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:13:52,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:52,879 INFO L87 Difference]: Start difference. First operand 512 states and 1477 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:52,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:52,945 INFO L93 Difference]: Finished difference Result 511 states and 1476 transitions. [2022-11-20 12:13:52,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:13:52,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-20 12:13:52,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:52,946 INFO L225 Difference]: With dead ends: 511 [2022-11-20 12:13:52,946 INFO L226 Difference]: Without dead ends: 87 [2022-11-20 12:13:52,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:13:52,947 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:52,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 23 Unchecked, 0.1s Time] [2022-11-20 12:13:52,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-20 12:13:52,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-20 12:13:52,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 2.0930232558139537) internal successors, (180), 86 states have internal predecessors, (180), 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) [2022-11-20 12:13:52,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 180 transitions. [2022-11-20 12:13:52,950 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 180 transitions. Word has length 27 [2022-11-20 12:13:52,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:52,950 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 180 transitions. [2022-11-20 12:13:52,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-20 12:13:52,950 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 180 transitions. [2022-11-20 12:13:52,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:52,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:52,951 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:52,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:53,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:53,164 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:53,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:53,164 INFO L85 PathProgramCache]: Analyzing trace with hash 94913417, now seen corresponding path program 4 times [2022-11-20 12:13:53,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:53,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550112446] [2022-11-20 12:13:53,165 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 12:13:53,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:53,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:53,166 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:53,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-20 12:13:53,323 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 12:13:53,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:53,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 12:13:53,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:53,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:13:53,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:53,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:53,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550112446] [2022-11-20 12:13:53,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550112446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:53,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:53,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:13:53,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975953126] [2022-11-20 12:13:53,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:53,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:13:53,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:53,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:13:53,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:13:53,925 INFO L87 Difference]: Start difference. First operand 87 states and 180 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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) [2022-11-20 12:13:54,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:54,258 INFO L93 Difference]: Finished difference Result 106 states and 215 transitions. [2022-11-20 12:13:54,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:13:54,259 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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 [2022-11-20 12:13:54,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:54,259 INFO L225 Difference]: With dead ends: 106 [2022-11-20 12:13:54,259 INFO L226 Difference]: Without dead ends: 55 [2022-11-20 12:13:54,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:13:54,260 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 20 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:54,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 39 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:13:54,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-20 12:13:54,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-11-20 12:13:54,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.7407407407407407) internal successors, (94), 54 states have internal predecessors, (94), 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) [2022-11-20 12:13:54,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 94 transitions. [2022-11-20 12:13:54,262 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 94 transitions. Word has length 27 [2022-11-20 12:13:54,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:54,262 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 94 transitions. [2022-11-20 12:13:54,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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) [2022-11-20 12:13:54,263 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 94 transitions. [2022-11-20 12:13:54,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 12:13:54,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:54,263 INFO L195 NwaCegarLoop]: 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] [2022-11-20 12:13:54,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2022-11-20 12:13:54,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:54,464 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:13:54,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:54,464 INFO L85 PathProgramCache]: Analyzing trace with hash -649930585, now seen corresponding path program 5 times [2022-11-20 12:13:54,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:54,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422981413] [2022-11-20 12:13:54,465 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 12:13:54,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:54,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:54,466 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:54,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-20 12:13:54,651 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:13:54,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-20 12:13:54,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:13:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:13:54,806 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-20 12:13:54,807 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:13:54,808 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-20 12:13:54,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-20 12:13:54,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-20 12:13:54,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-20 12:13:54,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-20 12:13:54,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-20 12:13:54,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-20 12:13:54,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-20 12:13:54,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-20 12:13:54,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-20 12:13:54,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-20 12:13:54,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-20 12:13:54,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-20 12:13:54,813 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-20 12:13:54,813 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-20 12:13:54,813 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-20 12:13:54,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2022-11-20 12:13:55,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:55,028 INFO L444 BasicCegarLoop]: Path program histogram: [24, 5, 1, 1, 1, 1, 1, 1] [2022-11-20 12:13:55,032 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:13:55,033 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:13:55,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:13:55 BasicIcfg [2022-11-20 12:13:55,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:13:55,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:13:55,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:13:55,145 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:13:55,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:13:07" (3/4) ... [2022-11-20 12:13:55,148 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:13:55,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:13:55,149 INFO L158 Benchmark]: Toolchain (without parser) took 49617.41ms. Allocated memory was 79.7MB in the beginning and 293.6MB in the end (delta: 213.9MB). Free memory was 57.0MB in the beginning and 200.5MB in the end (delta: -143.5MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2022-11-20 12:13:55,149 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 65.0MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:13:55,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 766.07ms. Allocated memory is still 79.7MB. Free memory was 56.8MB in the beginning and 51.8MB in the end (delta: 5.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-11-20 12:13:55,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.29ms. Allocated memory is still 79.7MB. Free memory was 51.8MB in the beginning and 49.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:13:55,150 INFO L158 Benchmark]: Boogie Preprocessor took 41.22ms. Allocated memory is still 79.7MB. Free memory was 49.0MB in the beginning and 46.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:13:55,150 INFO L158 Benchmark]: RCFGBuilder took 935.34ms. Allocated memory is still 79.7MB. Free memory was 46.5MB in the beginning and 47.6MB in the end (delta: -1.0MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2022-11-20 12:13:55,150 INFO L158 Benchmark]: TraceAbstraction took 47812.49ms. Allocated memory was 79.7MB in the beginning and 293.6MB in the end (delta: 213.9MB). Free memory was 46.7MB in the beginning and 200.5MB in the end (delta: -153.8MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2022-11-20 12:13:55,150 INFO L158 Benchmark]: Witness Printer took 3.97ms. Allocated memory is still 293.6MB. Free memory is still 200.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:13:55,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 65.0MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 766.07ms. Allocated memory is still 79.7MB. Free memory was 56.8MB in the beginning and 51.8MB in the end (delta: 5.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.29ms. Allocated memory is still 79.7MB. Free memory was 51.8MB in the beginning and 49.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.22ms. Allocated memory is still 79.7MB. Free memory was 49.0MB in the beginning and 46.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 935.34ms. Allocated memory is still 79.7MB. Free memory was 46.5MB in the beginning and 47.6MB in the end (delta: -1.0MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * TraceAbstraction took 47812.49ms. Allocated memory was 79.7MB in the beginning and 293.6MB in the end (delta: 213.9MB). Free memory was 46.7MB in the beginning and 200.5MB in the end (delta: -153.8MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. * Witness Printer took 3.97ms. Allocated memory is still 293.6MB. Free memory is still 200.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.3s, 162 PlacesBefore, 55 PlacesAfterwards, 151 TransitionsBefore, 43 TransitionsAfterwards, 3394 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 145 TotalNumberOfCompositions, 8737 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5377, independent: 5178, independent conditional: 0, independent unconditional: 5178, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2520, independent: 2458, independent conditional: 0, independent unconditional: 2458, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2520, independent: 2428, independent conditional: 0, independent unconditional: 2428, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 92, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 568, independent: 63, independent conditional: 0, independent unconditional: 63, dependent: 505, dependent conditional: 0, dependent unconditional: 505, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5377, independent: 2720, independent conditional: 0, independent unconditional: 2720, dependent: 137, dependent conditional: 0, dependent unconditional: 137, unknown: 2520, unknown conditional: 0, unknown unconditional: 2520] , Statistics on independence cache: Total cache size (in pairs): 335, Positive cache size: 311, Positive conditional cache size: 0, Positive unconditional cache size: 311, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p1_EBX = 0; [L718] 0 int __unbuffered_p2_EAX = 0; [L720] 0 int __unbuffered_p3_EAX = 0; [L722] 0 int __unbuffered_p3_EBX = 0; [L724] 0 int a = 0; [L725] 0 _Bool main$tmp_guard0; [L726] 0 _Bool main$tmp_guard1; [L728] 0 int x = 0; [L730] 0 int y = 0; [L732] 0 int z = 0; [L733] 0 _Bool z$flush_delayed; [L734] 0 int z$mem_tmp; [L735] 0 _Bool z$r_buff0_thd0; [L736] 0 _Bool z$r_buff0_thd1; [L737] 0 _Bool z$r_buff0_thd2; [L738] 0 _Bool z$r_buff0_thd3; [L739] 0 _Bool z$r_buff0_thd4; [L740] 0 _Bool z$r_buff1_thd0; [L741] 0 _Bool z$r_buff1_thd1; [L742] 0 _Bool z$r_buff1_thd2; [L743] 0 _Bool z$r_buff1_thd3; [L744] 0 _Bool z$r_buff1_thd4; [L745] 0 _Bool z$read_delayed; [L746] 0 int *z$read_delayed_var; [L747] 0 int z$w_buff0; [L748] 0 _Bool z$w_buff0_used; [L749] 0 int z$w_buff1; [L750] 0 _Bool z$w_buff1_used; [L751] 0 _Bool weak$$choice0; [L752] 0 _Bool weak$$choice2; [L871] 0 pthread_t t325; [L872] FCALL, FORK 0 pthread_create(&t325, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t325, ((void *)0), P0, ((void *)0))=-1, t325={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L873] 0 pthread_t t326; [L874] FCALL, FORK 0 pthread_create(&t326, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t326, ((void *)0), P1, ((void *)0))=0, t325={11:0}, t326={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L875] 0 pthread_t t327; [L876] FCALL, FORK 0 pthread_create(&t327, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t327, ((void *)0), P2, ((void *)0))=1, t325={11:0}, t326={15:0}, t327={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L877] 0 pthread_t t328; [L878] FCALL, FORK 0 pthread_create(&t328, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t328, ((void *)0), P3, ((void *)0))=2, t325={11:0}, t326={15:0}, t327={7:0}, t328={-2147483637:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L817] 4 z$w_buff1 = z$w_buff0 [L818] 4 z$w_buff0 = 1 [L819] 4 z$w_buff1_used = z$w_buff0_used [L820] 4 z$w_buff0_used = (_Bool)1 [L821] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L821] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L822] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L823] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L824] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L825] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L826] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L827] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L830] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L831] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L832] 4 z$flush_delayed = weak$$choice2 [L833] 4 z$mem_tmp = z [L834] 4 z = !z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff1) [L835] 4 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : z$w_buff0)) [L836] 4 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff1 : z$w_buff1)) [L837] 4 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used)) [L838] 4 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L839] 4 z$r_buff0_thd4 = weak$$choice2 ? z$r_buff0_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4)) [L840] 4 z$r_buff1_thd4 = weak$$choice2 ? z$r_buff1_thd4 : (!z$w_buff0_used || !z$r_buff0_thd4 && !z$w_buff1_used || !z$r_buff0_thd4 && !z$r_buff1_thd4 ? z$r_buff1_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L841] 4 __unbuffered_p3_EAX = z [L842] 4 z = z$flush_delayed ? z$mem_tmp : z [L843] 4 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=128, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L846] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=128, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L756] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=128, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L759] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=128, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 1 return 0; [L771] 2 x = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=128, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L774] 2 __unbuffered_p1_EAX = x VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=128, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L777] 2 __unbuffered_p1_EBX = y VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=128, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L789] 3 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=3, weak$$choice2=128, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L792] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L793] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L794] 3 z$flush_delayed = weak$$choice2 [L795] 3 z$mem_tmp = z [L796] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L797] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L798] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L799] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L800] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L801] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L802] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L803] 3 __unbuffered_p2_EAX = z [L804] 3 z = z$flush_delayed ? z$mem_tmp : z [L805] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L849] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L850] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L851] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L852] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L853] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L782] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L784] 2 return 0; [L856] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L858] 4 return 0; [L810] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L812] 3 return 0; [L880] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t325={11:0}, t326={15:0}, t327={7:0}, t328={-2147483637:0}, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L882] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L882] RET 0 assume_abort_if_not(main$tmp_guard0) [L884] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L885] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L886] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L887] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L888] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t325={11:0}, t326={15:0}, t327={7:0}, t328={-2147483637:0}, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L891] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L893] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 876]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 872]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 874]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 186 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 47.6s, OverallIterations: 35, TraceHistogramMax: 1, PathProgramHistogramMax: 24, EmptinessCheckTime: 0.1s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 773 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 773 mSDsluCounter, 1217 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1058 IncrementalHoareTripleChecker+Unchecked, 909 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2298 IncrementalHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 308 mSDtfsCounter, 2298 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 819 GetRequests, 674 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3940occurred in iteration=0, InterpolantAutomatonStates: 195, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 34 MinimizatonAttempts, 9395 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 4.0s SatisfiabilityAnalysisTime, 14.2s InterpolantComputationTime, 860 NumberOfCodeBlocks, 860 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 799 ConstructedInterpolants, 455 QuantifiedInterpolants, 28319 SizeOfPredicates, 25 NumberOfNonLiveVariables, 6520 ConjunctsInSsa, 486 ConjunctsInUnsatCore, 34 InterpolantComputations, 34 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 12:13:55,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5e3209-7b49-4f0a-8223-9c7161d7eb82/bin/uautomizer-ug76WZFUDN/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: UNKNOWN: Overapproximated counterexample