./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro --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 3bc57c42fd552df471a50a3f823d776d12ae5a02a1da1686aaab749af4f270bf --- 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-8393723 [2022-11-18 20:59:41,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:59:41,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:59:41,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:59:41,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:59:41,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:59:41,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:59:41,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:59:41,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:59:41,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:59:41,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:59:41,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:59:41,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:59:41,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:59:41,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:59:41,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:59:41,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:59:41,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:59:41,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:59:41,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:59:41,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:59:41,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:59:41,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:59:41,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:59:41,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:59:41,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:59:41,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:59:41,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:59:41,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:59:41,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:59:41,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:59:41,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:59:41,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:59:41,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:59:41,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:59:41,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:59:41,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:59:41,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:59:41,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:59:41,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:59:41,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:59:41,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 20:59:41,451 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:59:41,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:59:41,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:59:41,453 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:59:41,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:59:41,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:59:41,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:59:41,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:59:41,456 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:59:41,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:59:41,456 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:59:41,457 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:59:41,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:59:41,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:59:41,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:59:41,458 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:59:41,459 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:59:41,459 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:59:41,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:59:41,460 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:59:41,460 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:59:41,460 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:59:41,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:59:41,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:59:41,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:59:41,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:59:41,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:59:41,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:59:41,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:59:41,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:59:41,464 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_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc57c42fd552df471a50a3f823d776d12ae5a02a1da1686aaab749af4f270bf [2022-11-18 20:59:41,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:59:41,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:59:41,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:59:41,879 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:59:41,881 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:59:41,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i [2022-11-18 20:59:41,998 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/data/2557b3419/ca1437dc913b496b8cea18660f0706e2/FLAGa8f8d9040 [2022-11-18 20:59:42,645 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:59:42,646 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i [2022-11-18 20:59:42,660 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/data/2557b3419/ca1437dc913b496b8cea18660f0706e2/FLAGa8f8d9040 [2022-11-18 20:59:42,975 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/data/2557b3419/ca1437dc913b496b8cea18660f0706e2 [2022-11-18 20:59:42,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:59:42,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:59:42,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:59:42,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:59:42,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:59:42,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:59:42" (1/1) ... [2022-11-18 20:59:42,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ee64c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:42, skipping insertion in model container [2022-11-18 20:59:42,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:59:42" (1/1) ... [2022-11-18 20:59:43,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:59:43,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:59:43,417 WARN L234 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_ce6c8b40-0b21-41d8-9313-d063cb806e73/sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i[949,962] [2022-11-18 20:59:43,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:59:43,843 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:59:43,860 WARN L234 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_ce6c8b40-0b21-41d8-9313-d063cb806e73/sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i[949,962] [2022-11-18 20:59:43,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:59:44,018 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:59:44,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:44 WrapperNode [2022-11-18 20:59:44,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:59:44,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:59:44,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:59:44,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:59:44,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:44" (1/1) ... [2022-11-18 20:59:44,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:44" (1/1) ... [2022-11-18 20:59:44,137 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 160 [2022-11-18 20:59:44,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:59:44,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:59:44,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:59:44,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:59:44,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:44" (1/1) ... [2022-11-18 20:59:44,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:44" (1/1) ... [2022-11-18 20:59:44,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:44" (1/1) ... [2022-11-18 20:59:44,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:44" (1/1) ... [2022-11-18 20:59:44,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:44" (1/1) ... [2022-11-18 20:59:44,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:44" (1/1) ... [2022-11-18 20:59:44,207 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:44" (1/1) ... [2022-11-18 20:59:44,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:44" (1/1) ... [2022-11-18 20:59:44,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:59:44,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:59:44,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:59:44,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:59:44,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:44" (1/1) ... [2022-11-18 20:59:44,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:59:44,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:44,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:59:44,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:59:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:59:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:59:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:59:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:59:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:59:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 20:59:44,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 20:59:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 20:59:44,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 20:59:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-18 20:59:44,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-18 20:59:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-18 20:59:44,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-18 20:59:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:59:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:59:44,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:59:44,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:59:44,316 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:59:44,616 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:59:44,618 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:59:45,179 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:59:45,383 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:59:45,383 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:59:45,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:59:45 BoogieIcfgContainer [2022-11-18 20:59:45,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:59:45,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:59:45,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:59:45,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:59:45,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:59:42" (1/3) ... [2022-11-18 20:59:45,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c39e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:59:45, skipping insertion in model container [2022-11-18 20:59:45,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:44" (2/3) ... [2022-11-18 20:59:45,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c39e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:59:45, skipping insertion in model container [2022-11-18 20:59:45,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:59:45" (3/3) ... [2022-11-18 20:59:45,397 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018_tso.oepc.i [2022-11-18 20:59:45,420 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:59:45,421 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-18 20:59:45,421 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:59:45,493 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:59:45,557 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 20:59:45,595 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 150 transitions, 320 flow [2022-11-18 20:59:45,601 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 150 transitions, 320 flow [2022-11-18 20:59:45,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 320 flow [2022-11-18 20:59:45,680 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-11-18 20:59:45,680 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:59:45,687 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 100 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2022-11-18 20:59:45,690 INFO L119 LiptonReduction]: Number of co-enabled transitions 3746 [2022-11-18 20:59:54,416 INFO L134 LiptonReduction]: Checked pairs total: 9984 [2022-11-18 20:59:54,416 INFO L136 LiptonReduction]: Total number of compositions: 146 [2022-11-18 20:59:54,434 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 45 transitions, 110 flow [2022-11-18 20:59:54,910 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6444 states, 6427 states have (on average 4.144390851096935) internal successors, (26636), 6443 states have internal predecessors, (26636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:54,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:59:54,945 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;@5ac4a3ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:59:54,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-18 20:59:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 6444 states, 6427 states have (on average 4.144390851096935) internal successors, (26636), 6443 states have internal predecessors, (26636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:55,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 20:59:55,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:55,031 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 20:59:55,033 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:59:55,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:55,040 INFO L85 PathProgramCache]: Analyzing trace with hash 631, now seen corresponding path program 1 times [2022-11-18 20:59:55,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:55,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347865753] [2022-11-18 20:59:55,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:55,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:55,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:55,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:55,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347865753] [2022-11-18 20:59:55,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347865753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:55,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:55,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 20:59:55,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838832598] [2022-11-18 20:59:55,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:55,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:59:55,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:55,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:59:55,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:59:55,290 INFO L87 Difference]: Start difference. First operand has 6444 states, 6427 states have (on average 4.144390851096935) internal successors, (26636), 6443 states have internal predecessors, (26636), 0 states have call successors, (0), 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) [2022-11-18 20:59:55,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:55,534 INFO L93 Difference]: Finished difference Result 6072 states and 24528 transitions. [2022-11-18 20:59:55,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:59:55,537 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 [2022-11-18 20:59:55,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:55,621 INFO L225 Difference]: With dead ends: 6072 [2022-11-18 20:59:55,621 INFO L226 Difference]: Without dead ends: 6072 [2022-11-18 20:59:55,622 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 [2022-11-18 20:59:55,626 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:55,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:59:55,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6072 states. [2022-11-18 20:59:56,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6072 to 6072. [2022-11-18 20:59:56,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6072 states, 6067 states have (on average 4.042854788198451) internal successors, (24528), 6071 states have internal predecessors, (24528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:56,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6072 states to 6072 states and 24528 transitions. [2022-11-18 20:59:56,156 INFO L78 Accepts]: Start accepts. Automaton has 6072 states and 24528 transitions. Word has length 1 [2022-11-18 20:59:56,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:56,156 INFO L495 AbstractCegarLoop]: Abstraction has 6072 states and 24528 transitions. [2022-11-18 20:59:56,164 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) [2022-11-18 20:59:56,167 INFO L276 IsEmpty]: Start isEmpty. Operand 6072 states and 24528 transitions. [2022-11-18 20:59:56,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:59:56,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:56,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:59:56,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:59:56,169 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:59:56,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:56,171 INFO L85 PathProgramCache]: Analyzing trace with hash 597757404, now seen corresponding path program 1 times [2022-11-18 20:59:56,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:56,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291042801] [2022-11-18 20:59:56,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:56,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:56,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:56,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:56,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291042801] [2022-11-18 20:59:56,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291042801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:56,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:56,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:59:56,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31394546] [2022-11-18 20:59:56,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:56,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:56,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:56,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:56,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:56,900 INFO L87 Difference]: Start difference. First operand 6072 states and 24528 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:57,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:57,153 INFO L93 Difference]: Finished difference Result 4962 states and 19815 transitions. [2022-11-18 20:59:57,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:57,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 20:59:57,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:57,215 INFO L225 Difference]: With dead ends: 4962 [2022-11-18 20:59:57,221 INFO L226 Difference]: Without dead ends: 4812 [2022-11-18 20:59:57,223 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 [2022-11-18 20:59:57,225 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 18 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:57,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 10 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:59:57,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2022-11-18 20:59:57,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4812. [2022-11-18 20:59:57,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4812 states, 4810 states have (on average 4.012474012474012) internal successors, (19300), 4811 states have internal predecessors, (19300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:57,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 19300 transitions. [2022-11-18 20:59:57,586 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 19300 transitions. Word has length 5 [2022-11-18 20:59:57,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:57,586 INFO L495 AbstractCegarLoop]: Abstraction has 4812 states and 19300 transitions. [2022-11-18 20:59:57,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:57,591 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 19300 transitions. [2022-11-18 20:59:57,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:59:57,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:57,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:57,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:59:57,605 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:59:57,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:57,606 INFO L85 PathProgramCache]: Analyzing trace with hash 704060627, now seen corresponding path program 1 times [2022-11-18 20:59:57,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:57,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320708294] [2022-11-18 20:59:57,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:57,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:59,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:59,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:59,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320708294] [2022-11-18 20:59:59,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320708294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:59,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:59,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:59:59,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36113766] [2022-11-18 20:59:59,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:59,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:59:59,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:59,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:59:59,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:59:59,087 INFO L87 Difference]: Start difference. First operand 4812 states and 19300 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) [2022-11-18 20:59:59,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:59,523 INFO L93 Difference]: Finished difference Result 4062 states and 16125 transitions. [2022-11-18 20:59:59,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:59:59,524 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 [2022-11-18 20:59:59,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:59,582 INFO L225 Difference]: With dead ends: 4062 [2022-11-18 20:59:59,582 INFO L226 Difference]: Without dead ends: 4062 [2022-11-18 20:59:59,583 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 [2022-11-18 20:59:59,587 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 76 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:59,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 45 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:59:59,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4062 states. [2022-11-18 20:59:59,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4062 to 4062. [2022-11-18 20:59:59,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4062 states, 4061 states have (on average 3.9706968726914553) internal successors, (16125), 4061 states have internal predecessors, (16125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:59,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4062 states to 4062 states and 16125 transitions. [2022-11-18 20:59:59,810 INFO L78 Accepts]: Start accepts. Automaton has 4062 states and 16125 transitions. Word has length 12 [2022-11-18 20:59:59,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:59,811 INFO L495 AbstractCegarLoop]: Abstraction has 4062 states and 16125 transitions. [2022-11-18 20:59:59,812 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) [2022-11-18 20:59:59,812 INFO L276 IsEmpty]: Start isEmpty. Operand 4062 states and 16125 transitions. [2022-11-18 20:59:59,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:59:59,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:59,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:59,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:59:59,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 20:59:59,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:59,817 INFO L85 PathProgramCache]: Analyzing trace with hash 704060554, now seen corresponding path program 1 times [2022-11-18 20:59:59,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:59,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947735723] [2022-11-18 20:59:59,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:59,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:00,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:00,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:00,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947735723] [2022-11-18 21:00:00,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947735723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:00,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:00,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:00:00,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633835267] [2022-11-18 21:00:00,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:00,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:00:00,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:00,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:00:00,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:00:00,450 INFO L87 Difference]: Start difference. First operand 4062 states and 16125 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2022-11-18 21:00:00,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:00,801 INFO L93 Difference]: Finished difference Result 4312 states and 16600 transitions. [2022-11-18 21:00:00,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:00:00,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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 [2022-11-18 21:00:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:00,828 INFO L225 Difference]: With dead ends: 4312 [2022-11-18 21:00:00,828 INFO L226 Difference]: Without dead ends: 3562 [2022-11-18 21:00:00,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:00,831 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 52 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:00,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 23 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:00:00,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2022-11-18 21:00:01,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 3562. [2022-11-18 21:00:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3562 states, 3561 states have (on average 3.9104184217916313) internal successors, (13925), 3561 states have internal predecessors, (13925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:01,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 13925 transitions. [2022-11-18 21:00:01,091 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 13925 transitions. Word has length 12 [2022-11-18 21:00:01,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:01,092 INFO L495 AbstractCegarLoop]: Abstraction has 3562 states and 13925 transitions. [2022-11-18 21:00:01,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2022-11-18 21:00:01,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 13925 transitions. [2022-11-18 21:00:01,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 21:00:01,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:01,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:01,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:00:01,097 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:01,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:01,098 INFO L85 PathProgramCache]: Analyzing trace with hash -2005026290, now seen corresponding path program 1 times [2022-11-18 21:00:01,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:01,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347086377] [2022-11-18 21:00:01,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:01,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:02,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:02,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347086377] [2022-11-18 21:00:02,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347086377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:02,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:02,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:00:02,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335241286] [2022-11-18 21:00:02,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:02,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:00:02,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:02,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:00:02,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:00:02,077 INFO L87 Difference]: Start difference. First operand 3562 states and 13925 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) [2022-11-18 21:00:02,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:02,360 INFO L93 Difference]: Finished difference Result 4038 states and 15392 transitions. [2022-11-18 21:00:02,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:00:02,361 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 [2022-11-18 21:00:02,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:02,386 INFO L225 Difference]: With dead ends: 4038 [2022-11-18 21:00:02,386 INFO L226 Difference]: Without dead ends: 3538 [2022-11-18 21:00:02,387 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 [2022-11-18 21:00:02,388 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 37 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:02,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 28 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:00:02,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3538 states. [2022-11-18 21:00:02,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3538 to 3538. [2022-11-18 21:00:02,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3538 states, 3537 states have (on average 3.9030251625671473) internal successors, (13805), 3537 states have internal predecessors, (13805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:02,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 13805 transitions. [2022-11-18 21:00:02,541 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 13805 transitions. Word has length 14 [2022-11-18 21:00:02,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:02,542 INFO L495 AbstractCegarLoop]: Abstraction has 3538 states and 13805 transitions. [2022-11-18 21:00:02,542 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) [2022-11-18 21:00:02,542 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 13805 transitions. [2022-11-18 21:00:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 21:00:02,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:02,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:02,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:00:02,548 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:02,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:02,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2026324462, now seen corresponding path program 1 times [2022-11-18 21:00:02,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:02,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785997799] [2022-11-18 21:00:02,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:02,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:03,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:03,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:03,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785997799] [2022-11-18 21:00:03,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785997799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:03,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:03,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:03,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496605506] [2022-11-18 21:00:03,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:03,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:03,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:03,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:03,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:03,662 INFO L87 Difference]: Start difference. First operand 3538 states and 13805 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-18 21:00:04,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:04,177 INFO L93 Difference]: Finished difference Result 4150 states and 15940 transitions. [2022-11-18 21:00:04,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:00:04,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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 [2022-11-18 21:00:04,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:04,275 INFO L225 Difference]: With dead ends: 4150 [2022-11-18 21:00:04,275 INFO L226 Difference]: Without dead ends: 3672 [2022-11-18 21:00:04,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:00:04,276 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 60 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:04,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 21 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 21:00:04,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3672 states. [2022-11-18 21:00:04,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3672 to 3562. [2022-11-18 21:00:04,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3562 states, 3561 states have (on average 3.903678741926425) internal successors, (13901), 3561 states have internal predecessors, (13901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:04,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 13901 transitions. [2022-11-18 21:00:04,439 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 13901 transitions. Word has length 15 [2022-11-18 21:00:04,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:04,439 INFO L495 AbstractCegarLoop]: Abstraction has 3562 states and 13901 transitions. [2022-11-18 21:00:04,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-18 21:00:04,440 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 13901 transitions. [2022-11-18 21:00:04,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 21:00:04,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:04,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:04,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:00:04,445 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:04,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:04,446 INFO L85 PathProgramCache]: Analyzing trace with hash -2024854132, now seen corresponding path program 2 times [2022-11-18 21:00:04,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:04,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312863782] [2022-11-18 21:00:04,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:04,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:05,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:05,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312863782] [2022-11-18 21:00:05,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312863782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:05,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:05,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:05,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827186632] [2022-11-18 21:00:05,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:05,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:05,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:05,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:05,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:05,469 INFO L87 Difference]: Start difference. First operand 3562 states and 13901 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-18 21:00:05,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:05,832 INFO L93 Difference]: Finished difference Result 3914 states and 14925 transitions. [2022-11-18 21:00:05,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:00:05,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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 [2022-11-18 21:00:05,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:05,860 INFO L225 Difference]: With dead ends: 3914 [2022-11-18 21:00:05,860 INFO L226 Difference]: Without dead ends: 3514 [2022-11-18 21:00:05,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:00:05,862 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 48 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:05,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 43 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:00:05,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2022-11-18 21:00:06,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 3514. [2022-11-18 21:00:06,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3514 states, 3513 states have (on average 3.8886991175633363) internal successors, (13661), 3513 states have internal predecessors, (13661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3514 states to 3514 states and 13661 transitions. [2022-11-18 21:00:06,062 INFO L78 Accepts]: Start accepts. Automaton has 3514 states and 13661 transitions. Word has length 15 [2022-11-18 21:00:06,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:06,063 INFO L495 AbstractCegarLoop]: Abstraction has 3514 states and 13661 transitions. [2022-11-18 21:00:06,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-18 21:00:06,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3514 states and 13661 transitions. [2022-11-18 21:00:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 21:00:06,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:06,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:06,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:00:06,070 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:06,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:06,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1909293362, now seen corresponding path program 1 times [2022-11-18 21:00:06,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:06,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481953466] [2022-11-18 21:00:06,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:06,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:06,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:06,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:06,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481953466] [2022-11-18 21:00:06,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481953466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:06,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:06,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:06,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370255554] [2022-11-18 21:00:06,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:06,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:06,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:06,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:06,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:06,935 INFO L87 Difference]: Start difference. First operand 3514 states and 13661 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2022-11-18 21:00:07,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:07,320 INFO L93 Difference]: Finished difference Result 3778 states and 14416 transitions. [2022-11-18 21:00:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:00:07,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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 [2022-11-18 21:00:07,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:07,348 INFO L225 Difference]: With dead ends: 3778 [2022-11-18 21:00:07,348 INFO L226 Difference]: Without dead ends: 3478 [2022-11-18 21:00:07,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:00:07,350 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 54 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:07,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 41 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:00:07,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3478 states. [2022-11-18 21:00:07,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3478 to 3472. [2022-11-18 21:00:07,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3472 states, 3471 states have (on average 3.8683376548545088) internal successors, (13427), 3471 states have internal predecessors, (13427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:07,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3472 states to 3472 states and 13427 transitions. [2022-11-18 21:00:07,558 INFO L78 Accepts]: Start accepts. Automaton has 3472 states and 13427 transitions. Word has length 16 [2022-11-18 21:00:07,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:07,558 INFO L495 AbstractCegarLoop]: Abstraction has 3472 states and 13427 transitions. [2022-11-18 21:00:07,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2022-11-18 21:00:07,559 INFO L276 IsEmpty]: Start isEmpty. Operand 3472 states and 13427 transitions. [2022-11-18 21:00:07,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 21:00:07,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:07,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:07,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 21:00:07,570 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:07,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:07,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1606862863, now seen corresponding path program 1 times [2022-11-18 21:00:07,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:07,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591731396] [2022-11-18 21:00:07,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:07,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:08,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:08,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591731396] [2022-11-18 21:00:08,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591731396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:08,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:08,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:08,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99922992] [2022-11-18 21:00:08,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:08,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:08,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:08,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:08,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:08,533 INFO L87 Difference]: Start difference. First operand 3472 states and 13427 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2022-11-18 21:00:08,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:08,859 INFO L93 Difference]: Finished difference Result 3682 states and 13950 transitions. [2022-11-18 21:00:08,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:00:08,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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 [2022-11-18 21:00:08,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:08,881 INFO L225 Difference]: With dead ends: 3682 [2022-11-18 21:00:08,882 INFO L226 Difference]: Without dead ends: 3332 [2022-11-18 21:00:08,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:00:08,883 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 46 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:08,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 28 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:00:08,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2022-11-18 21:00:08,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 3332. [2022-11-18 21:00:08,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3332 states, 3331 states have (on average 3.8688081657160014) internal successors, (12887), 3331 states have internal predecessors, (12887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3332 states to 3332 states and 12887 transitions. [2022-11-18 21:00:09,013 INFO L78 Accepts]: Start accepts. Automaton has 3332 states and 12887 transitions. Word has length 16 [2022-11-18 21:00:09,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:09,014 INFO L495 AbstractCegarLoop]: Abstraction has 3332 states and 12887 transitions. [2022-11-18 21:00:09,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2022-11-18 21:00:09,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3332 states and 12887 transitions. [2022-11-18 21:00:09,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 21:00:09,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:09,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:09,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 21:00:09,022 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:09,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:09,023 INFO L85 PathProgramCache]: Analyzing trace with hash 941396306, now seen corresponding path program 1 times [2022-11-18 21:00:09,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:09,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950791700] [2022-11-18 21:00:09,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:09,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:09,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:09,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:09,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950791700] [2022-11-18 21:00:09,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950791700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:09,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:09,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:00:09,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205629018] [2022-11-18 21:00:09,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:09,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 21:00:09,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:09,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 21:00:09,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:00:09,835 INFO L87 Difference]: Start difference. First operand 3332 states and 12887 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:10,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:10,296 INFO L93 Difference]: Finished difference Result 4130 states and 15734 transitions. [2022-11-18 21:00:10,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:00:10,296 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-11-18 21:00:10,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:10,320 INFO L225 Difference]: With dead ends: 4130 [2022-11-18 21:00:10,321 INFO L226 Difference]: Without dead ends: 3822 [2022-11-18 21:00:10,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:00:10,322 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 93 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:10,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 28 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:00:10,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3822 states. [2022-11-18 21:00:10,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3822 to 3668. [2022-11-18 21:00:10,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3667 states have (on average 3.8598309244614124) internal successors, (14154), 3667 states have internal predecessors, (14154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:10,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 14154 transitions. [2022-11-18 21:00:10,474 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 14154 transitions. Word has length 17 [2022-11-18 21:00:10,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:10,475 INFO L495 AbstractCegarLoop]: Abstraction has 3668 states and 14154 transitions. [2022-11-18 21:00:10,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:10,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 14154 transitions. [2022-11-18 21:00:10,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 21:00:10,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:10,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:10,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 21:00:10,484 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:10,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:10,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1726910415, now seen corresponding path program 1 times [2022-11-18 21:00:10,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:10,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232574752] [2022-11-18 21:00:10,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:10,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:11,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:11,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:11,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232574752] [2022-11-18 21:00:11,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232574752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:11,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:11,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:00:11,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93451627] [2022-11-18 21:00:11,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:11,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 21:00:11,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:11,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 21:00:11,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:00:11,520 INFO L87 Difference]: Start difference. First operand 3668 states and 14154 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:11,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:11,921 INFO L93 Difference]: Finished difference Result 4196 states and 16004 transitions. [2022-11-18 21:00:11,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:00:11,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-11-18 21:00:11,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:11,947 INFO L225 Difference]: With dead ends: 4196 [2022-11-18 21:00:11,947 INFO L226 Difference]: Without dead ends: 3900 [2022-11-18 21:00:11,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-18 21:00:11,950 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 76 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:11,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 35 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:00:11,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2022-11-18 21:00:12,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 3900. [2022-11-18 21:00:12,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3900 states, 3899 states have (on average 3.8691972300589894) internal successors, (15086), 3899 states have internal predecessors, (15086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:12,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3900 states to 3900 states and 15086 transitions. [2022-11-18 21:00:12,111 INFO L78 Accepts]: Start accepts. Automaton has 3900 states and 15086 transitions. Word has length 17 [2022-11-18 21:00:12,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:12,113 INFO L495 AbstractCegarLoop]: Abstraction has 3900 states and 15086 transitions. [2022-11-18 21:00:12,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:12,113 INFO L276 IsEmpty]: Start isEmpty. Operand 3900 states and 15086 transitions. [2022-11-18 21:00:12,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 21:00:12,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:12,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:12,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 21:00:12,122 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:12,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:12,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1725497745, now seen corresponding path program 2 times [2022-11-18 21:00:12,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:12,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990078960] [2022-11-18 21:00:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:12,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:13,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:13,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:13,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990078960] [2022-11-18 21:00:13,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990078960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:13,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:13,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:00:13,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462583364] [2022-11-18 21:00:13,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:13,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 21:00:13,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:13,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 21:00:13,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:00:13,425 INFO L87 Difference]: Start difference. First operand 3900 states and 15086 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:13,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:13,990 INFO L93 Difference]: Finished difference Result 4396 states and 16869 transitions. [2022-11-18 21:00:13,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 21:00:13,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-11-18 21:00:13,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:14,013 INFO L225 Difference]: With dead ends: 4396 [2022-11-18 21:00:14,014 INFO L226 Difference]: Without dead ends: 4164 [2022-11-18 21:00:14,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-18 21:00:14,015 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 102 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:14,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 30 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 21:00:14,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4164 states. [2022-11-18 21:00:14,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4164 to 3780. [2022-11-18 21:00:14,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3780 states, 3779 states have (on average 3.8555173326276795) internal successors, (14570), 3779 states have internal predecessors, (14570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:14,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3780 states to 3780 states and 14570 transitions. [2022-11-18 21:00:14,229 INFO L78 Accepts]: Start accepts. Automaton has 3780 states and 14570 transitions. Word has length 17 [2022-11-18 21:00:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:14,229 INFO L495 AbstractCegarLoop]: Abstraction has 3780 states and 14570 transitions. [2022-11-18 21:00:14,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:14,230 INFO L276 IsEmpty]: Start isEmpty. Operand 3780 states and 14570 transitions. [2022-11-18 21:00:14,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 21:00:14,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:14,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:14,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 21:00:14,238 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:14,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:14,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1681272525, now seen corresponding path program 1 times [2022-11-18 21:00:14,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:14,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612591266] [2022-11-18 21:00:14,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:14,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:14,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:14,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:14,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612591266] [2022-11-18 21:00:14,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612591266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:14,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:14,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:00:14,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720969694] [2022-11-18 21:00:14,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:14,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:00:14,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:14,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:00:14,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:00:14,440 INFO L87 Difference]: Start difference. First operand 3780 states and 14570 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:14,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:14,551 INFO L93 Difference]: Finished difference Result 2820 states and 9770 transitions. [2022-11-18 21:00:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:00:14,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-11-18 21:00:14,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:14,565 INFO L225 Difference]: With dead ends: 2820 [2022-11-18 21:00:14,566 INFO L226 Difference]: Without dead ends: 2820 [2022-11-18 21:00:14,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:00:14,568 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:14,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 10 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:00:14,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2022-11-18 21:00:14,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2820. [2022-11-18 21:00:14,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2820 states, 2819 states have (on average 3.4657680028378857) internal successors, (9770), 2819 states have internal predecessors, (9770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:14,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2820 states to 2820 states and 9770 transitions. [2022-11-18 21:00:14,663 INFO L78 Accepts]: Start accepts. Automaton has 2820 states and 9770 transitions. Word has length 17 [2022-11-18 21:00:14,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:14,664 INFO L495 AbstractCegarLoop]: Abstraction has 2820 states and 9770 transitions. [2022-11-18 21:00:14,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:14,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2820 states and 9770 transitions. [2022-11-18 21:00:14,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 21:00:14,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:14,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:14,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 21:00:14,671 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:14,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:14,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1266103551, now seen corresponding path program 1 times [2022-11-18 21:00:14,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:14,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707951403] [2022-11-18 21:00:14,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:14,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:14,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:14,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:14,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707951403] [2022-11-18 21:00:14,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707951403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:14,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:14,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:00:14,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586408347] [2022-11-18 21:00:14,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:14,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:00:14,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:14,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:00:14,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:00:14,892 INFO L87 Difference]: Start difference. First operand 2820 states and 9770 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 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) [2022-11-18 21:00:15,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:15,029 INFO L93 Difference]: Finished difference Result 1740 states and 5450 transitions. [2022-11-18 21:00:15,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 21:00:15,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 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 [2022-11-18 21:00:15,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:15,037 INFO L225 Difference]: With dead ends: 1740 [2022-11-18 21:00:15,037 INFO L226 Difference]: Without dead ends: 1740 [2022-11-18 21:00:15,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:00:15,038 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 47 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:15,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 15 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:00:15,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2022-11-18 21:00:15,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1646. [2022-11-18 21:00:15,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 1645 states have (on average 3.115501519756839) internal successors, (5125), 1645 states have internal predecessors, (5125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:15,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 5125 transitions. [2022-11-18 21:00:15,092 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 5125 transitions. Word has length 18 [2022-11-18 21:00:15,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:15,092 INFO L495 AbstractCegarLoop]: Abstraction has 1646 states and 5125 transitions. [2022-11-18 21:00:15,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 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) [2022-11-18 21:00:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 5125 transitions. [2022-11-18 21:00:15,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 21:00:15,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:15,098 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] [2022-11-18 21:00:15,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 21:00:15,098 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:15,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:15,099 INFO L85 PathProgramCache]: Analyzing trace with hash 2074678114, now seen corresponding path program 1 times [2022-11-18 21:00:15,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:15,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17658687] [2022-11-18 21:00:15,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:15,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:15,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:15,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17658687] [2022-11-18 21:00:15,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17658687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:15,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:15,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:15,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729633045] [2022-11-18 21:00:15,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:15,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:00:15,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:15,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:00:15,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:00:15,382 INFO L87 Difference]: Start difference. First operand 1646 states and 5125 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 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) [2022-11-18 21:00:15,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:15,556 INFO L93 Difference]: Finished difference Result 1250 states and 3937 transitions. [2022-11-18 21:00:15,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:00:15,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 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 [2022-11-18 21:00:15,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:15,562 INFO L225 Difference]: With dead ends: 1250 [2022-11-18 21:00:15,562 INFO L226 Difference]: Without dead ends: 1250 [2022-11-18 21:00:15,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:00:15,566 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 65 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:15,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 20 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:00:15,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2022-11-18 21:00:15,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1138. [2022-11-18 21:00:15,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 1137 states have (on average 3.1459982409850484) internal successors, (3577), 1137 states have internal predecessors, (3577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:15,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 3577 transitions. [2022-11-18 21:00:15,603 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 3577 transitions. Word has length 21 [2022-11-18 21:00:15,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:15,606 INFO L495 AbstractCegarLoop]: Abstraction has 1138 states and 3577 transitions. [2022-11-18 21:00:15,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 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) [2022-11-18 21:00:15,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 3577 transitions. [2022-11-18 21:00:15,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 21:00:15,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:15,612 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] [2022-11-18 21:00:15,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 21:00:15,613 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:15,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:15,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1234134170, now seen corresponding path program 1 times [2022-11-18 21:00:15,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:15,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546757460] [2022-11-18 21:00:15,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:15,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:16,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:16,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:16,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546757460] [2022-11-18 21:00:16,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546757460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:16,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:16,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 21:00:16,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706397972] [2022-11-18 21:00:16,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:16,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 21:00:16,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:16,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 21:00:16,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-18 21:00:16,431 INFO L87 Difference]: Start difference. First operand 1138 states and 3577 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:17,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:17,486 INFO L93 Difference]: Finished difference Result 1625 states and 4983 transitions. [2022-11-18 21:00:17,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:00:17,486 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-18 21:00:17,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:17,491 INFO L225 Difference]: With dead ends: 1625 [2022-11-18 21:00:17,492 INFO L226 Difference]: Without dead ends: 1237 [2022-11-18 21:00:17,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-18 21:00:17,493 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 147 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:17,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 69 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 21:00:17,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2022-11-18 21:00:17,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1138. [2022-11-18 21:00:17,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 1137 states have (on average 3.0562884784520667) internal successors, (3475), 1137 states have internal predecessors, (3475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:17,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 3475 transitions. [2022-11-18 21:00:17,548 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 3475 transitions. Word has length 25 [2022-11-18 21:00:17,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:17,549 INFO L495 AbstractCegarLoop]: Abstraction has 1138 states and 3475 transitions. [2022-11-18 21:00:17,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:17,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 3475 transitions. [2022-11-18 21:00:17,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 21:00:17,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:17,562 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] [2022-11-18 21:00:17,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 21:00:17,563 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:17,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:17,565 INFO L85 PathProgramCache]: Analyzing trace with hash -962744226, now seen corresponding path program 2 times [2022-11-18 21:00:17,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:17,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676289365] [2022-11-18 21:00:17,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:17,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:17,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:17,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:17,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676289365] [2022-11-18 21:00:17,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676289365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:17,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:17,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:00:17,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869843410] [2022-11-18 21:00:17,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:17,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:17,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:17,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:17,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:17,984 INFO L87 Difference]: Start difference. First operand 1138 states and 3475 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:18,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:18,173 INFO L93 Difference]: Finished difference Result 1074 states and 3349 transitions. [2022-11-18 21:00:18,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:00:18,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-18 21:00:18,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:18,177 INFO L225 Difference]: With dead ends: 1074 [2022-11-18 21:00:18,177 INFO L226 Difference]: Without dead ends: 526 [2022-11-18 21:00:18,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:18,179 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 129 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:18,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 19 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:00:18,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-11-18 21:00:18,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 518. [2022-11-18 21:00:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 517 states have (on average 2.9032882011605414) internal successors, (1501), 517 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:18,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 1501 transitions. [2022-11-18 21:00:18,201 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 1501 transitions. Word has length 25 [2022-11-18 21:00:18,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:18,202 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 1501 transitions. [2022-11-18 21:00:18,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:18,202 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 1501 transitions. [2022-11-18 21:00:18,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:00:18,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:18,205 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, 1, 1] [2022-11-18 21:00:18,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 21:00:18,207 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:18,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:18,208 INFO L85 PathProgramCache]: Analyzing trace with hash 957243996, now seen corresponding path program 1 times [2022-11-18 21:00:18,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:18,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420431338] [2022-11-18 21:00:18,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:18,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:18,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:18,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420431338] [2022-11-18 21:00:18,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420431338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:18,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:18,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:00:18,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899720957] [2022-11-18 21:00:18,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:18,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:18,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:18,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:18,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:18,845 INFO L87 Difference]: Start difference. First operand 518 states and 1501 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:19,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:19,229 INFO L93 Difference]: Finished difference Result 776 states and 2238 transitions. [2022-11-18 21:00:19,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:00:19,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:00:19,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:19,231 INFO L225 Difference]: With dead ends: 776 [2022-11-18 21:00:19,231 INFO L226 Difference]: Without dead ends: 348 [2022-11-18 21:00:19,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-18 21:00:19,232 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 39 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:19,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 21 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:00:19,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-11-18 21:00:19,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2022-11-18 21:00:19,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 2.723342939481268) internal successors, (945), 347 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:19,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 945 transitions. [2022-11-18 21:00:19,247 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 945 transitions. Word has length 29 [2022-11-18 21:00:19,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:19,248 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 945 transitions. [2022-11-18 21:00:19,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:19,248 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 945 transitions. [2022-11-18 21:00:19,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:00:19,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:19,251 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, 1, 1] [2022-11-18 21:00:19,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 21:00:19,252 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:19,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:19,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1691705664, now seen corresponding path program 2 times [2022-11-18 21:00:19,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:19,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423323881] [2022-11-18 21:00:19,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:19,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:21,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:21,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:21,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423323881] [2022-11-18 21:00:21,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423323881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:21,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:21,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 21:00:21,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615254686] [2022-11-18 21:00:21,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:21,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:00:21,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:21,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:00:21,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:00:21,090 INFO L87 Difference]: Start difference. First operand 348 states and 945 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:21,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:21,917 INFO L93 Difference]: Finished difference Result 645 states and 1734 transitions. [2022-11-18 21:00:21,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 21:00:21,918 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:00:21,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:21,920 INFO L225 Difference]: With dead ends: 645 [2022-11-18 21:00:21,920 INFO L226 Difference]: Without dead ends: 494 [2022-11-18 21:00:21,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-18 21:00:21,921 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 103 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:21,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 58 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 21:00:21,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-11-18 21:00:21,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 354. [2022-11-18 21:00:21,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 353 states have (on average 2.6487252124645893) internal successors, (935), 353 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:21,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 935 transitions. [2022-11-18 21:00:21,933 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 935 transitions. Word has length 29 [2022-11-18 21:00:21,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:21,934 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 935 transitions. [2022-11-18 21:00:21,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:21,934 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 935 transitions. [2022-11-18 21:00:21,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:00:21,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:21,936 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, 1, 1] [2022-11-18 21:00:21,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 21:00:21,937 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:21,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:21,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1582679132, now seen corresponding path program 3 times [2022-11-18 21:00:21,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:21,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216856541] [2022-11-18 21:00:21,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:21,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:22,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:00:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:22,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:00:22,138 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 21:00:22,139 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-18 21:00:22,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-18 21:00:22,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-18 21:00:22,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-18 21:00:22,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-18 21:00:22,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-18 21:00:22,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-18 21:00:22,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-18 21:00:22,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-18 21:00:22,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-18 21:00:22,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-18 21:00:22,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-18 21:00:22,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-18 21:00:22,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-18 21:00:22,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-18 21:00:22,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-18 21:00:22,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 21:00:22,149 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:22,158 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 21:00:22,158 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:00:22,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:00:22 BasicIcfg [2022-11-18 21:00:22,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:00:22,328 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:00:22,328 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:00:22,328 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:00:22,329 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:59:45" (3/4) ... [2022-11-18 21:00:22,332 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 21:00:22,332 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:00:22,333 INFO L158 Benchmark]: Toolchain (without parser) took 39351.17ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 107.9MB in the beginning and 1.0GB in the end (delta: -937.0MB). Peak memory consumption was 221.2MB. Max. memory is 16.1GB. [2022-11-18 21:00:22,334 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 86.0MB. Free memory was 41.8MB in the beginning and 41.8MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:00:22,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1035.32ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 105.7MB in the end (delta: 1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 21:00:22,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.46ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 102.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 21:00:22,335 INFO L158 Benchmark]: Boogie Preprocessor took 71.02ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 100.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:00:22,337 INFO L158 Benchmark]: RCFGBuilder took 1171.88ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 59.6MB in the end (delta: 41.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-18 21:00:22,338 INFO L158 Benchmark]: TraceAbstraction took 36938.40ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 58.8MB in the beginning and 1.0GB in the end (delta: -986.1MB). Peak memory consumption was 173.3MB. Max. memory is 16.1GB. [2022-11-18 21:00:22,338 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 1.3GB. Free memory is still 1.0GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:00:22,346 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 86.0MB. Free memory was 41.8MB in the beginning and 41.8MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1035.32ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 105.7MB in the end (delta: 1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 119.46ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 102.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.02ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 100.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1171.88ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 59.6MB in the end (delta: 41.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 36938.40ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 58.8MB in the beginning and 1.0GB in the end (delta: -986.1MB). Peak memory consumption was 173.3MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 1.3GB. Free memory is still 1.0GB. 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: 8.8s, 161 PlacesBefore, 57 PlacesAfterwards, 150 TransitionsBefore, 45 TransitionsAfterwards, 3746 CoEnabledTransitionPairs, 6 FixpointIterations, 59 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 146 TotalNumberOfCompositions, 9984 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5134, independent: 4936, independent conditional: 0, independent unconditional: 4936, dependent: 198, dependent conditional: 0, dependent unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2712, independent: 2640, independent conditional: 0, independent unconditional: 2640, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2712, independent: 2601, independent conditional: 0, independent unconditional: 2601, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 111, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 993, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 912, dependent conditional: 0, dependent unconditional: 912, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5134, independent: 2296, independent conditional: 0, independent unconditional: 2296, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 2712, unknown conditional: 0, unknown unconditional: 2712] , Statistics on independence cache: Total cache size (in pairs): 358, Positive cache size: 322, Positive conditional cache size: 0, Positive unconditional cache size: 322, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, 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: [L725] 0 _Bool x$flush_delayed; [L738] 0 int *x$read_delayed_var; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L726] 0 int x$mem_tmp; [L730] 0 _Bool x$r_buff0_thd3; [L731] 0 _Bool x$r_buff0_thd4; [L728] 0 _Bool x$r_buff0_thd1; [L712] 0 int __unbuffered_p1_EAX = 0; [L729] 0 _Bool x$r_buff0_thd2; [L718] 0 int __unbuffered_p3_EBX = 0; [L727] 0 _Bool x$r_buff0_thd0; [L720] 0 int a = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L737] 0 _Bool x$read_delayed; [L710] 0 int __unbuffered_cnt = 0; [L722] 0 _Bool main$tmp_guard1; [L742] 0 _Bool x$w_buff1_used; [L721] 0 _Bool main$tmp_guard0; [L716] 0 int __unbuffered_p3_EAX = 0; [L740] 0 _Bool x$w_buff0_used; [L739] 0 int x$w_buff0; [L741] 0 int x$w_buff1; [L724] 0 int x = 0; [L733] 0 _Bool x$r_buff1_thd1; [L732] 0 _Bool x$r_buff1_thd0; [L744] 0 int y = 0; [L746] 0 int z = 0; [L736] 0 _Bool x$r_buff1_thd4; [L735] 0 _Bool x$r_buff1_thd3; [L734] 0 _Bool x$r_buff1_thd2; [L853] 0 pthread_t t489; [L854] FCALL, FORK 0 pthread_create(&t489, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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(&t489, ((void *)0), P0, ((void *)0))=-3, t489={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L855] 0 pthread_t t490; [L856] FCALL, FORK 0 pthread_create(&t490, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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(&t490, ((void *)0), P1, ((void *)0))=-2, t489={5:0}, t490={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L857] 0 pthread_t t491; [L858] FCALL, FORK 0 pthread_create(&t491, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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(&t491, ((void *)0), P2, ((void *)0))=-1, t489={5:0}, t490={6:0}, t491={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L859] 0 pthread_t t492; [L860] FCALL, FORK 0 pthread_create(&t492, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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(&t492, ((void *)0), P3, ((void *)0))=0, t489={5:0}, t490={6:0}, t491={7:0}, t492={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L772] 2 x$w_buff1 = x$w_buff0 [L773] 2 x$w_buff0 = 2 [L774] 2 x$w_buff1_used = x$w_buff0_used [L775] 2 x$w_buff0_used = (_Bool)1 [L776] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L776] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L777] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L778] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L779] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L780] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L781] 2 x$r_buff1_thd4 = x$r_buff0_thd4 [L782] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L785] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L802] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L805] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L808] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L809] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L810] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L811] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L812] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L822] 4 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L825] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L828] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L752] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L755] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L758] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L759] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L760] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L761] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L762] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L765] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L767] 1 return 0; [L831] 4 x = x$w_buff0_used && x$r_buff0_thd4 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd4 ? x$w_buff1 : x) [L832] 4 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$w_buff0_used [L833] 4 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$w_buff1_used [L834] 4 x$r_buff0_thd4 = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$r_buff0_thd4 [L835] 4 x$r_buff1_thd4 = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$r_buff1_thd4 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=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$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L838] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L840] 4 return 0; [L815] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L817] 3 return 0; [L788] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L789] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L790] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L791] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L792] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=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$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L795] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 2 return 0; [L862] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L864] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L864] RET 0 assume_abort_if_not(main$tmp_guard0) [L866] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L867] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L868] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L869] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L870] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t489={5:0}, t490={6:0}, t491={7:0}, t492={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L873] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L874] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L875] 0 x$flush_delayed = weak$$choice2 [L876] 0 x$mem_tmp = x [L877] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L878] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L879] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L880] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L881] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L882] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L883] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L884] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L885] 0 x = x$flush_delayed ? x$mem_tmp : x [L886] 0 x$flush_delayed = (_Bool)0 [L888] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] - 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: 851]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 854]: 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: 860]: 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: 856]: 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: 858]: 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, 187 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 36.6s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.2s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1205 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1205 mSDsluCounter, 549 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 377 mSDsCounter, 189 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2912 IncrementalHoareTripleChecker+Invalid, 3101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 189 mSolverCounterUnsat, 172 mSDtfsCounter, 2912 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6444occurred in iteration=0, InterpolantAutomatonStates: 113, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 1107 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 4133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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 [2022-11-18 21:00:22,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro --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 3bc57c42fd552df471a50a3f823d776d12ae5a02a1da1686aaab749af4f270bf --- 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-8393723 [2022-11-18 21:00:25,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:00:25,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:00:25,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:00:25,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:00:25,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:00:25,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:00:25,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:00:25,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:00:25,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:00:25,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:00:25,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:00:25,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:00:25,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:00:25,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:00:25,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:00:25,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:00:25,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:00:25,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:00:25,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:00:25,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:00:25,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:00:25,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:00:25,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:00:25,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:00:25,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:00:25,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:00:25,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:00:25,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:00:25,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:00:25,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:00:25,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:00:25,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:00:25,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:00:25,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:00:25,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:00:25,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:00:25,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:00:25,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:00:25,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:00:25,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:00:25,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-18 21:00:25,390 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:00:25,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:00:25,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:00:25,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:00:25,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:00:25,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:00:25,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:00:25,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:00:25,394 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:00:25,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:00:25,395 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:00:25,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:00:25,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:00:25,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:00:25,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:00:25,396 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 21:00:25,397 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 21:00:25,397 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 21:00:25,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:00:25,398 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 21:00:25,398 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 21:00:25,398 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 21:00:25,398 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:00:25,399 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:00:25,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:00:25,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:00:25,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:00:25,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:25,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:00:25,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:00:25,401 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 21:00:25,401 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 21:00:25,401 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 21:00:25,402 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_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro 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 -> 3bc57c42fd552df471a50a3f823d776d12ae5a02a1da1686aaab749af4f270bf [2022-11-18 21:00:25,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:00:25,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:00:25,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:00:25,884 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:00:25,888 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:00:25,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i [2022-11-18 21:00:25,995 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/data/49fe5cb08/a0013cabcc36456f9d6c270a2568a224/FLAGef2215018 [2022-11-18 21:00:26,746 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:00:26,747 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i [2022-11-18 21:00:26,771 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/data/49fe5cb08/a0013cabcc36456f9d6c270a2568a224/FLAGef2215018 [2022-11-18 21:00:27,016 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/data/49fe5cb08/a0013cabcc36456f9d6c270a2568a224 [2022-11-18 21:00:27,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:00:27,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:00:27,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:27,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:00:27,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:00:27,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:27" (1/1) ... [2022-11-18 21:00:27,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c28b752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27, skipping insertion in model container [2022-11-18 21:00:27,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:27" (1/1) ... [2022-11-18 21:00:27,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:00:27,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:00:27,333 WARN L234 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_ce6c8b40-0b21-41d8-9313-d063cb806e73/sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i[949,962] [2022-11-18 21:00:27,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:27,756 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:00:27,775 WARN L234 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_ce6c8b40-0b21-41d8-9313-d063cb806e73/sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i[949,962] [2022-11-18 21:00:27,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:27,918 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:00:27,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27 WrapperNode [2022-11-18 21:00:27,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:27,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:27,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:00:27,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:00:27,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27" (1/1) ... [2022-11-18 21:00:27,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27" (1/1) ... [2022-11-18 21:00:28,058 INFO L138 Inliner]: procedures = 180, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 161 [2022-11-18 21:00:28,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:28,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:00:28,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:00:28,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:00:28,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27" (1/1) ... [2022-11-18 21:00:28,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27" (1/1) ... [2022-11-18 21:00:28,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27" (1/1) ... [2022-11-18 21:00:28,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27" (1/1) ... [2022-11-18 21:00:28,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27" (1/1) ... [2022-11-18 21:00:28,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27" (1/1) ... [2022-11-18 21:00:28,128 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27" (1/1) ... [2022-11-18 21:00:28,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27" (1/1) ... [2022-11-18 21:00:28,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:00:28,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:00:28,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:00:28,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:00:28,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27" (1/1) ... [2022-11-18 21:00:28,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:28,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:28,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:28,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:00:28,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 21:00:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:00:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:00:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:00:28,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 21:00:28,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 21:00:28,271 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 21:00:28,271 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 21:00:28,272 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 21:00:28,273 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 21:00:28,273 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-18 21:00:28,273 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-18 21:00:28,274 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-18 21:00:28,274 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-18 21:00:28,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 21:00:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:00:28,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:00:28,278 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 21:00:28,516 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:00:28,533 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:00:29,169 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:00:29,394 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:00:29,395 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 21:00:29,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:29 BoogieIcfgContainer [2022-11-18 21:00:29,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:00:29,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:00:29,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:00:29,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:00:29,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:00:27" (1/3) ... [2022-11-18 21:00:29,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d63a6aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:29, skipping insertion in model container [2022-11-18 21:00:29,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:27" (2/3) ... [2022-11-18 21:00:29,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d63a6aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:29, skipping insertion in model container [2022-11-18 21:00:29,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:29" (3/3) ... [2022-11-18 21:00:29,414 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018_tso.oepc.i [2022-11-18 21:00:29,439 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:00:29,439 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-18 21:00:29,439 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 21:00:29,530 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 21:00:29,573 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 21:00:29,594 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 151 transitions, 322 flow [2022-11-18 21:00:29,598 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 151 transitions, 322 flow [2022-11-18 21:00:29,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 151 transitions, 322 flow [2022-11-18 21:00:29,675 INFO L130 PetriNetUnfolder]: 2/147 cut-off events. [2022-11-18 21:00:29,676 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:00:29,683 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 100 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2022-11-18 21:00:29,687 INFO L119 LiptonReduction]: Number of co-enabled transitions 3746 [2022-11-18 21:00:44,336 INFO L134 LiptonReduction]: Checked pairs total: 10748 [2022-11-18 21:00:44,336 INFO L136 LiptonReduction]: Total number of compositions: 151 [2022-11-18 21:00:44,346 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 45 transitions, 110 flow [2022-11-18 21:00:44,718 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6444 states, 6427 states have (on average 4.144390851096935) internal successors, (26636), 6443 states have internal predecessors, (26636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:44,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:00:44,750 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;@7725c313, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:00:44,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-18 21:00:44,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 6444 states, 6427 states have (on average 4.144390851096935) internal successors, (26636), 6443 states have internal predecessors, (26636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:44,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 21:00:44,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:44,794 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 21:00:44,795 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:44,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:44,839 INFO L85 PathProgramCache]: Analyzing trace with hash 640, now seen corresponding path program 1 times [2022-11-18 21:00:44,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:44,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445457612] [2022-11-18 21:00:44,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:44,853 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 [2022-11-18 21:00:44,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:44,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:00:44,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:44,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 21:00:44,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:44,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:44,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:44,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:44,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445457612] [2022-11-18 21:00:44,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445457612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:44,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:44,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 21:00:44,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069734561] [2022-11-18 21:00:44,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:44,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 21:00:44,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:45,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 21:00:45,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 21:00:45,033 INFO L87 Difference]: Start difference. First operand has 6444 states, 6427 states have (on average 4.144390851096935) internal successors, (26636), 6443 states have internal predecessors, (26636), 0 states have call successors, (0), 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) [2022-11-18 21:00:45,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:45,460 INFO L93 Difference]: Finished difference Result 6072 states and 24528 transitions. [2022-11-18 21:00:45,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 21:00:45,464 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 [2022-11-18 21:00:45,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:45,541 INFO L225 Difference]: With dead ends: 6072 [2022-11-18 21:00:45,541 INFO L226 Difference]: Without dead ends: 6072 [2022-11-18 21:00:45,542 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 [2022-11-18 21:00:45,546 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:45,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:00:45,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6072 states. [2022-11-18 21:00:45,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6072 to 6072. [2022-11-18 21:00:45,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6072 states, 6067 states have (on average 4.042854788198451) internal successors, (24528), 6071 states have internal predecessors, (24528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:46,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6072 states to 6072 states and 24528 transitions. [2022-11-18 21:00:46,035 INFO L78 Accepts]: Start accepts. Automaton has 6072 states and 24528 transitions. Word has length 1 [2022-11-18 21:00:46,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:46,036 INFO L495 AbstractCegarLoop]: Abstraction has 6072 states and 24528 transitions. [2022-11-18 21:00:46,036 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) [2022-11-18 21:00:46,038 INFO L276 IsEmpty]: Start isEmpty. Operand 6072 states and 24528 transitions. [2022-11-18 21:00:46,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 21:00:46,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:46,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 21:00:46,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:46,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:46,252 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:46,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:46,253 INFO L85 PathProgramCache]: Analyzing trace with hash 604288425, now seen corresponding path program 1 times [2022-11-18 21:00:46,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:46,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362859246] [2022-11-18 21:00:46,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:46,255 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 [2022-11-18 21:00:46,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:46,257 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:00:46,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:46,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 21:00:46,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:46,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:46,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:46,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:46,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362859246] [2022-11-18 21:00:46,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362859246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:46,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:46,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 21:00:46,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230933494] [2022-11-18 21:00:46,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:46,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:00:46,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:46,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:00:46,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:00:46,486 INFO L87 Difference]: Start difference. First operand 6072 states and 24528 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:46,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:46,835 INFO L93 Difference]: Finished difference Result 4962 states and 19815 transitions. [2022-11-18 21:00:46,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:00:46,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 21:00:46,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:46,893 INFO L225 Difference]: With dead ends: 4962 [2022-11-18 21:00:46,893 INFO L226 Difference]: Without dead ends: 4812 [2022-11-18 21:00:46,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:00:46,895 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 18 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:46,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 10 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:00:46,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2022-11-18 21:00:47,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4812. [2022-11-18 21:00:47,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4812 states, 4810 states have (on average 4.012474012474012) internal successors, (19300), 4811 states have internal predecessors, (19300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:47,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 19300 transitions. [2022-11-18 21:00:47,309 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 19300 transitions. Word has length 5 [2022-11-18 21:00:47,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:47,323 INFO L495 AbstractCegarLoop]: Abstraction has 4812 states and 19300 transitions. [2022-11-18 21:00:47,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:47,324 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 19300 transitions. [2022-11-18 21:00:47,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 21:00:47,328 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:47,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:47,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:47,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:47,541 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:47,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:47,542 INFO L85 PathProgramCache]: Analyzing trace with hash 933473101, now seen corresponding path program 1 times [2022-11-18 21:00:47,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:47,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410381509] [2022-11-18 21:00:47,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:47,544 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 [2022-11-18 21:00:47,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:47,547 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:00:47,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:47,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 21:00:47,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:47,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:47,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:47,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:47,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410381509] [2022-11-18 21:00:47,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410381509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:47,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:47,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:00:47,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312637933] [2022-11-18 21:00:47,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:47,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:00:47,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:47,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:00:47,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:00:47,806 INFO L87 Difference]: Start difference. First operand 4812 states and 19300 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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) [2022-11-18 21:00:48,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:48,039 INFO L93 Difference]: Finished difference Result 3212 states and 11300 transitions. [2022-11-18 21:00:48,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:00:48,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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 [2022-11-18 21:00:48,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:48,083 INFO L225 Difference]: With dead ends: 3212 [2022-11-18 21:00:48,084 INFO L226 Difference]: Without dead ends: 3212 [2022-11-18 21:00:48,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:00:48,087 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:48,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 10 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:00:48,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3212 states. [2022-11-18 21:00:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3212 to 3212. [2022-11-18 21:00:48,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3212 states, 3210 states have (on average 3.520249221183801) internal successors, (11300), 3211 states have internal predecessors, (11300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:48,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3212 states to 3212 states and 11300 transitions. [2022-11-18 21:00:48,317 INFO L78 Accepts]: Start accepts. Automaton has 3212 states and 11300 transitions. Word has length 12 [2022-11-18 21:00:48,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:48,319 INFO L495 AbstractCegarLoop]: Abstraction has 3212 states and 11300 transitions. [2022-11-18 21:00:48,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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) [2022-11-18 21:00:48,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3212 states and 11300 transitions. [2022-11-18 21:00:48,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 21:00:48,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:48,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:48,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:48,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:48,539 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:48,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:48,540 INFO L85 PathProgramCache]: Analyzing trace with hash 938853974, now seen corresponding path program 1 times [2022-11-18 21:00:48,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:48,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607692695] [2022-11-18 21:00:48,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:48,541 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 [2022-11-18 21:00:48,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:48,545 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:00:48,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:48,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 21:00:48,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:48,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:48,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:48,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:48,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607692695] [2022-11-18 21:00:48,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607692695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:48,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:48,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:00:48,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905050184] [2022-11-18 21:00:48,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:48,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:00:48,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:48,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:00:48,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:00:48,801 INFO L87 Difference]: Start difference. First operand 3212 states and 11300 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) [2022-11-18 21:00:49,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:49,071 INFO L93 Difference]: Finished difference Result 1692 states and 5220 transitions. [2022-11-18 21:00:49,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 21:00:49,072 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 [2022-11-18 21:00:49,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:49,081 INFO L225 Difference]: With dead ends: 1692 [2022-11-18 21:00:49,081 INFO L226 Difference]: Without dead ends: 1692 [2022-11-18 21:00:49,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:00:49,088 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 29 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:49,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 20 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:00:49,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2022-11-18 21:00:49,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1692. [2022-11-18 21:00:49,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1690 states have (on average 3.088757396449704) internal successors, (5220), 1691 states have internal predecessors, (5220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:49,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 5220 transitions. [2022-11-18 21:00:49,157 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 5220 transitions. Word has length 16 [2022-11-18 21:00:49,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:49,162 INFO L495 AbstractCegarLoop]: Abstraction has 1692 states and 5220 transitions. [2022-11-18 21:00:49,163 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) [2022-11-18 21:00:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 5220 transitions. [2022-11-18 21:00:49,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 21:00:49,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:49,169 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] [2022-11-18 21:00:49,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:49,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:49,383 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:49,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:49,383 INFO L85 PathProgramCache]: Analyzing trace with hash -417729444, now seen corresponding path program 1 times [2022-11-18 21:00:49,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:49,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156850420] [2022-11-18 21:00:49,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:49,385 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 [2022-11-18 21:00:49,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:49,386 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:00:49,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:49,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 21:00:49,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:49,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:49,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:49,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:49,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156850420] [2022-11-18 21:00:49,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156850420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:49,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:49,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:49,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420803146] [2022-11-18 21:00:49,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:49,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:00:49,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:49,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:00:49,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:00:49,656 INFO L87 Difference]: Start difference. First operand 1692 states and 5220 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:49,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:49,986 INFO L93 Difference]: Finished difference Result 1152 states and 3600 transitions. [2022-11-18 21:00:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:00:49,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-18 21:00:49,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:49,993 INFO L225 Difference]: With dead ends: 1152 [2022-11-18 21:00:49,993 INFO L226 Difference]: Without dead ends: 1152 [2022-11-18 21:00:49,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:00:49,995 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 43 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:49,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 45 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:00:50,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-11-18 21:00:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2022-11-18 21:00:50,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1150 states have (on average 3.130434782608696) internal successors, (3600), 1151 states have internal predecessors, (3600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:50,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 3600 transitions. [2022-11-18 21:00:50,050 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 3600 transitions. Word has length 20 [2022-11-18 21:00:50,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:50,051 INFO L495 AbstractCegarLoop]: Abstraction has 1152 states and 3600 transitions. [2022-11-18 21:00:50,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:50,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 3600 transitions. [2022-11-18 21:00:50,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 21:00:50,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:50,056 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] [2022-11-18 21:00:50,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:50,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:50,271 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:50,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:50,271 INFO L85 PathProgramCache]: Analyzing trace with hash -50977095, now seen corresponding path program 1 times [2022-11-18 21:00:50,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:50,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97124794] [2022-11-18 21:00:50,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:50,273 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 [2022-11-18 21:00:50,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:50,275 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:00:50,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:50,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 21:00:50,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:50,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:50,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:50,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:50,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97124794] [2022-11-18 21:00:50,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97124794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:50,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:50,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:00:50,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854195767] [2022-11-18 21:00:50,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:50,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:50,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:50,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:50,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:50,581 INFO L87 Difference]: Start difference. First operand 1152 states and 3600 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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) [2022-11-18 21:00:51,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:51,021 INFO L93 Difference]: Finished difference Result 1067 states and 3430 transitions. [2022-11-18 21:00:51,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:00:51,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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 [2022-11-18 21:00:51,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:51,028 INFO L225 Difference]: With dead ends: 1067 [2022-11-18 21:00:51,028 INFO L226 Difference]: Without dead ends: 1067 [2022-11-18 21:00:51,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:51,030 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 55 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:51,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 80 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 21:00:51,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2022-11-18 21:00:51,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1067. [2022-11-18 21:00:51,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1065 states have (on average 3.220657276995305) internal successors, (3430), 1066 states have internal predecessors, (3430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:51,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 3430 transitions. [2022-11-18 21:00:51,089 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 3430 transitions. Word has length 24 [2022-11-18 21:00:51,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:51,089 INFO L495 AbstractCegarLoop]: Abstraction has 1067 states and 3430 transitions. [2022-11-18 21:00:51,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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) [2022-11-18 21:00:51,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 3430 transitions. [2022-11-18 21:00:51,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:00:51,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:51,094 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, 1, 1] [2022-11-18 21:00:51,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:51,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:51,307 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:51,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:51,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1942480494, now seen corresponding path program 1 times [2022-11-18 21:00:51,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:51,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650891709] [2022-11-18 21:00:51,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:51,309 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 [2022-11-18 21:00:51,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:51,310 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:00:51,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:51,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 21:00:51,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:52,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:52,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:52,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:52,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650891709] [2022-11-18 21:00:52,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650891709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:52,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:52,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:52,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248743306] [2022-11-18 21:00:52,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:52,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:00:52,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:52,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:00:52,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:00:52,144 INFO L87 Difference]: Start difference. First operand 1067 states and 3430 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:52,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:52,450 INFO L93 Difference]: Finished difference Result 1371 states and 4339 transitions. [2022-11-18 21:00:52,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:00:52,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:00:52,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:52,458 INFO L225 Difference]: With dead ends: 1371 [2022-11-18 21:00:52,458 INFO L226 Difference]: Without dead ends: 1371 [2022-11-18 21:00:52,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:00:52,464 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 31 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:52,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 32 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:00:52,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2022-11-18 21:00:52,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1370. [2022-11-18 21:00:52,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1368 states have (on average 3.171783625730994) internal successors, (4339), 1369 states have internal predecessors, (4339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:52,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 4339 transitions. [2022-11-18 21:00:52,526 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 4339 transitions. Word has length 29 [2022-11-18 21:00:52,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:52,527 INFO L495 AbstractCegarLoop]: Abstraction has 1370 states and 4339 transitions. [2022-11-18 21:00:52,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:52,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 4339 transitions. [2022-11-18 21:00:52,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:00:52,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:52,536 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, 1, 1] [2022-11-18 21:00:52,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:52,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:52,752 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:52,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:52,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1942480567, now seen corresponding path program 1 times [2022-11-18 21:00:52,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:52,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464291444] [2022-11-18 21:00:52,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:52,754 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 [2022-11-18 21:00:52,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:52,756 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:00:52,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:53,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:00:53,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:53,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:53,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:53,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464291444] [2022-11-18 21:00:53,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464291444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:53,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:53,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:53,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913757390] [2022-11-18 21:00:53,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:53,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:53,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:53,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:53,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:53,645 INFO L87 Difference]: Start difference. First operand 1370 states and 4339 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:53,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:53,752 INFO L93 Difference]: Finished difference Result 2385 states and 7633 transitions. [2022-11-18 21:00:53,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:00:53,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:00:53,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:53,765 INFO L225 Difference]: With dead ends: 2385 [2022-11-18 21:00:53,765 INFO L226 Difference]: Without dead ends: 2353 [2022-11-18 21:00:53,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:53,766 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:53,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 47 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 81 Unchecked, 0.1s Time] [2022-11-18 21:00:53,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2022-11-18 21:00:53,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 1393. [2022-11-18 21:00:53,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1391 states have (on average 3.1574406901509704) internal successors, (4392), 1392 states have internal predecessors, (4392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:53,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 4392 transitions. [2022-11-18 21:00:53,838 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 4392 transitions. Word has length 29 [2022-11-18 21:00:53,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:53,840 INFO L495 AbstractCegarLoop]: Abstraction has 1393 states and 4392 transitions. [2022-11-18 21:00:53,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:53,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 4392 transitions. [2022-11-18 21:00:53,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:00:53,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:53,847 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, 1, 1] [2022-11-18 21:00:53,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:54,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:54,066 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:54,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:54,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1867939409, now seen corresponding path program 2 times [2022-11-18 21:00:54,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:54,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284367087] [2022-11-18 21:00:54,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:00:54,068 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 [2022-11-18 21:00:54,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:54,069 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:00:54,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:54,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:00:54,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:00:54,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:00:54,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:54,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:54,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:54,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:54,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284367087] [2022-11-18 21:00:54,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284367087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:54,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:54,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:54,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117598015] [2022-11-18 21:00:54,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:54,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:54,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:54,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:54,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:54,973 INFO L87 Difference]: Start difference. First operand 1393 states and 4392 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:55,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:55,076 INFO L93 Difference]: Finished difference Result 2382 states and 7628 transitions. [2022-11-18 21:00:55,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:00:55,077 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:00:55,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:55,087 INFO L225 Difference]: With dead ends: 2382 [2022-11-18 21:00:55,087 INFO L226 Difference]: Without dead ends: 2370 [2022-11-18 21:00:55,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:55,089 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:55,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 47 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 79 Unchecked, 0.1s Time] [2022-11-18 21:00:55,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2022-11-18 21:00:55,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 1398. [2022-11-18 21:00:55,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1396 states have (on average 3.1554441260744985) internal successors, (4405), 1397 states have internal predecessors, (4405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:55,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 4405 transitions. [2022-11-18 21:00:55,142 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 4405 transitions. Word has length 29 [2022-11-18 21:00:55,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:55,142 INFO L495 AbstractCegarLoop]: Abstraction has 1398 states and 4405 transitions. [2022-11-18 21:00:55,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:55,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 4405 transitions. [2022-11-18 21:00:55,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:00:55,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:55,149 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, 1, 1] [2022-11-18 21:00:55,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:55,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:55,362 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:55,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:55,363 INFO L85 PathProgramCache]: Analyzing trace with hash 96342849, now seen corresponding path program 3 times [2022-11-18 21:00:55,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:55,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739221160] [2022-11-18 21:00:55,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 21:00:55,363 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 [2022-11-18 21:00:55,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:55,364 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:00:55,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:55,599 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 21:00:55,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:00:55,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 21:00:55,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:56,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:56,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:56,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:56,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739221160] [2022-11-18 21:00:56,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739221160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:56,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:56,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:56,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998045811] [2022-11-18 21:00:56,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:56,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:56,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:56,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:56,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:56,216 INFO L87 Difference]: Start difference. First operand 1398 states and 4405 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:56,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:56,453 INFO L93 Difference]: Finished difference Result 2269 states and 7231 transitions. [2022-11-18 21:00:56,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:00:56,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:00:56,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:56,464 INFO L225 Difference]: With dead ends: 2269 [2022-11-18 21:00:56,464 INFO L226 Difference]: Without dead ends: 2247 [2022-11-18 21:00:56,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:56,465 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:56,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 46 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 48 Unchecked, 0.2s Time] [2022-11-18 21:00:56,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2022-11-18 21:00:56,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 1378. [2022-11-18 21:00:56,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1376 states have (on average 3.166424418604651) internal successors, (4357), 1377 states have internal predecessors, (4357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:56,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 4357 transitions. [2022-11-18 21:00:56,524 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 4357 transitions. Word has length 29 [2022-11-18 21:00:56,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:56,525 INFO L495 AbstractCegarLoop]: Abstraction has 1378 states and 4357 transitions. [2022-11-18 21:00:56,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:56,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 4357 transitions. [2022-11-18 21:00:56,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:00:56,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:56,530 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, 1, 1] [2022-11-18 21:00:56,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:56,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:56,753 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:56,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:56,754 INFO L85 PathProgramCache]: Analyzing trace with hash -744983713, now seen corresponding path program 4 times [2022-11-18 21:00:56,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:56,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236646563] [2022-11-18 21:00:56,754 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 21:00:56,755 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 [2022-11-18 21:00:56,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:56,756 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:00:56,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:57,019 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 21:00:57,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:00:57,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:00:57,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:57,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:57,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:57,745 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:57,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236646563] [2022-11-18 21:00:57,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236646563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:57,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:57,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:57,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083850798] [2022-11-18 21:00:57,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:57,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:57,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:57,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:57,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:57,747 INFO L87 Difference]: Start difference. First operand 1378 states and 4357 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:57,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:57,883 INFO L93 Difference]: Finished difference Result 2651 states and 8427 transitions. [2022-11-18 21:00:57,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:00:57,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:00:57,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:57,896 INFO L225 Difference]: With dead ends: 2651 [2022-11-18 21:00:57,896 INFO L226 Difference]: Without dead ends: 2366 [2022-11-18 21:00:57,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:57,897 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 92 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:57,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 47 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 92 Unchecked, 0.1s Time] [2022-11-18 21:00:57,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2022-11-18 21:00:57,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 1679. [2022-11-18 21:00:57,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1677 states have (on average 3.11329755515802) internal successors, (5221), 1678 states have internal predecessors, (5221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:57,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 5221 transitions. [2022-11-18 21:00:57,977 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 5221 transitions. Word has length 29 [2022-11-18 21:00:57,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:57,978 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 5221 transitions. [2022-11-18 21:00:57,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:57,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 5221 transitions. [2022-11-18 21:00:57,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:00:57,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:57,985 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, 1, 1] [2022-11-18 21:00:58,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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)] Ended with exit code 0 [2022-11-18 21:00:58,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:58,198 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:58,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:58,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1312372513, now seen corresponding path program 5 times [2022-11-18 21:00:58,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:58,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570913372] [2022-11-18 21:00:58,200 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 21:00:58,200 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 [2022-11-18 21:00:58,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:58,201 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:00:58,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:58,459 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:00:58,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:00:58,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 21:00:58,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:59,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:59,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:59,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:59,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570913372] [2022-11-18 21:00:59,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570913372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:59,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:59,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:59,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888127738] [2022-11-18 21:00:59,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:59,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:59,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:59,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:59,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:59,103 INFO L87 Difference]: Start difference. First operand 1679 states and 5221 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:59,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:59,355 INFO L93 Difference]: Finished difference Result 2599 states and 8162 transitions. [2022-11-18 21:00:59,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:00:59,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:00:59,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:59,369 INFO L225 Difference]: With dead ends: 2599 [2022-11-18 21:00:59,369 INFO L226 Difference]: Without dead ends: 2564 [2022-11-18 21:00:59,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:59,370 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:59,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 46 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 45 Unchecked, 0.2s Time] [2022-11-18 21:00:59,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2022-11-18 21:00:59,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 1667. [2022-11-18 21:00:59,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1665 states have (on average 3.1177177177177176) internal successors, (5191), 1666 states have internal predecessors, (5191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:59,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 5191 transitions. [2022-11-18 21:00:59,457 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 5191 transitions. Word has length 29 [2022-11-18 21:00:59,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:59,458 INFO L495 AbstractCegarLoop]: Abstraction has 1667 states and 5191 transitions. [2022-11-18 21:00:59,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:59,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 5191 transitions. [2022-11-18 21:00:59,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:00:59,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:59,466 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, 1, 1] [2022-11-18 21:00:59,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:59,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:59,683 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:00:59,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:59,684 INFO L85 PathProgramCache]: Analyzing trace with hash 2003643127, now seen corresponding path program 6 times [2022-11-18 21:00:59,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:59,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022205301] [2022-11-18 21:00:59,685 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 21:00:59,685 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 [2022-11-18 21:00:59,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:59,687 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:00:59,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:00:59,980 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-18 21:00:59,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:00:59,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 21:00:59,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:00,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:00,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:00,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022205301] [2022-11-18 21:01:00,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022205301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:00,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:00,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:00,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337916853] [2022-11-18 21:01:00,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:00,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:00,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:00,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:00,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:00,636 INFO L87 Difference]: Start difference. First operand 1667 states and 5191 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:00,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:00,850 INFO L93 Difference]: Finished difference Result 2594 states and 8159 transitions. [2022-11-18 21:01:00,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:00,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:00,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:00,860 INFO L225 Difference]: With dead ends: 2594 [2022-11-18 21:01:00,860 INFO L226 Difference]: Without dead ends: 2463 [2022-11-18 21:01:00,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:00,861 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:00,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 46 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 45 Unchecked, 0.2s Time] [2022-11-18 21:01:00,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2022-11-18 21:01:00,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 1647. [2022-11-18 21:01:00,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1645 states have (on average 3.106382978723404) internal successors, (5110), 1646 states have internal predecessors, (5110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:00,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 5110 transitions. [2022-11-18 21:01:00,922 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 5110 transitions. Word has length 29 [2022-11-18 21:01:00,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:00,922 INFO L495 AbstractCegarLoop]: Abstraction has 1647 states and 5110 transitions. [2022-11-18 21:01:00,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:00,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 5110 transitions. [2022-11-18 21:01:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:00,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:00,928 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, 1, 1] [2022-11-18 21:01:00,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:01,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:01,142 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:01,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:01,143 INFO L85 PathProgramCache]: Analyzing trace with hash 678864557, now seen corresponding path program 7 times [2022-11-18 21:01:01,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:01,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537172457] [2022-11-18 21:01:01,143 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 21:01:01,143 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 [2022-11-18 21:01:01,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:01,144 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:01,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:01,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:01,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:02,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:02,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:02,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:02,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537172457] [2022-11-18 21:01:02,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537172457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:02,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:02,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:02,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922921654] [2022-11-18 21:01:02,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:02,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:02,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:02,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:02,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:02,077 INFO L87 Difference]: Start difference. First operand 1647 states and 5110 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:02,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:02,185 INFO L93 Difference]: Finished difference Result 2534 states and 7970 transitions. [2022-11-18 21:01:02,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:02,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:02,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:02,195 INFO L225 Difference]: With dead ends: 2534 [2022-11-18 21:01:02,195 INFO L226 Difference]: Without dead ends: 2388 [2022-11-18 21:01:02,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:02,196 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:02,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 47 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 75 Unchecked, 0.1s Time] [2022-11-18 21:01:02,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2022-11-18 21:01:02,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 1652. [2022-11-18 21:01:02,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1650 states have (on average 3.1006060606060606) internal successors, (5116), 1651 states have internal predecessors, (5116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:02,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 5116 transitions. [2022-11-18 21:01:02,281 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 5116 transitions. Word has length 29 [2022-11-18 21:01:02,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:02,282 INFO L495 AbstractCegarLoop]: Abstraction has 1652 states and 5116 transitions. [2022-11-18 21:01:02,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:02,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 5116 transitions. [2022-11-18 21:01:02,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:02,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:02,288 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, 1, 1] [2022-11-18 21:01:02,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:02,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:02,502 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:02,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:02,503 INFO L85 PathProgramCache]: Analyzing trace with hash 868665205, now seen corresponding path program 8 times [2022-11-18 21:01:02,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:02,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994624744] [2022-11-18 21:01:02,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:01:02,504 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 [2022-11-18 21:01:02,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:02,505 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:02,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:02,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:02,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:02,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 21:01:02,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:03,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:03,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:03,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:03,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994624744] [2022-11-18 21:01:03,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994624744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:03,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:03,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:03,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443020] [2022-11-18 21:01:03,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:03,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:03,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:03,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:03,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:03,357 INFO L87 Difference]: Start difference. First operand 1652 states and 5116 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:03,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:03,582 INFO L93 Difference]: Finished difference Result 2551 states and 7983 transitions. [2022-11-18 21:01:03,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:03,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:03,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:03,592 INFO L225 Difference]: With dead ends: 2551 [2022-11-18 21:01:03,593 INFO L226 Difference]: Without dead ends: 2465 [2022-11-18 21:01:03,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:03,594 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:03,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 46 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 45 Unchecked, 0.2s Time] [2022-11-18 21:01:03,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2022-11-18 21:01:03,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 1639. [2022-11-18 21:01:03,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1637 states have (on average 3.10445937690898) internal successors, (5082), 1638 states have internal predecessors, (5082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:03,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 5082 transitions. [2022-11-18 21:01:03,652 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 5082 transitions. Word has length 29 [2022-11-18 21:01:03,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:03,653 INFO L495 AbstractCegarLoop]: Abstraction has 1639 states and 5082 transitions. [2022-11-18 21:01:03,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:03,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 5082 transitions. [2022-11-18 21:01:03,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:03,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:03,659 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, 1, 1] [2022-11-18 21:01:03,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:03,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:03,878 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:03,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:03,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1616801315, now seen corresponding path program 9 times [2022-11-18 21:01:03,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:03,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673344976] [2022-11-18 21:01:03,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 21:01:03,880 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 [2022-11-18 21:01:03,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:03,881 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:03,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:04,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 21:01:04,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:04,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:04,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:04,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:04,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:04,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:04,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [673344976] [2022-11-18 21:01:04,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [673344976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:04,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:04,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:04,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366425406] [2022-11-18 21:01:04,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:04,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:04,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:04,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:04,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:04,773 INFO L87 Difference]: Start difference. First operand 1639 states and 5082 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:04,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:04,878 INFO L93 Difference]: Finished difference Result 2816 states and 8805 transitions. [2022-11-18 21:01:04,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:04,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:04,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:04,892 INFO L225 Difference]: With dead ends: 2816 [2022-11-18 21:01:04,893 INFO L226 Difference]: Without dead ends: 2109 [2022-11-18 21:01:04,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:04,894 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 99 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:04,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 47 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 99 Unchecked, 0.1s Time] [2022-11-18 21:01:04,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2022-11-18 21:01:04,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 1915. [2022-11-18 21:01:04,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1913 states have (on average 3.0940930475692627) internal successors, (5919), 1914 states have internal predecessors, (5919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:04,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 5919 transitions. [2022-11-18 21:01:04,953 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 5919 transitions. Word has length 29 [2022-11-18 21:01:04,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:04,953 INFO L495 AbstractCegarLoop]: Abstraction has 1915 states and 5919 transitions. [2022-11-18 21:01:04,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:04,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 5919 transitions. [2022-11-18 21:01:04,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:04,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:04,959 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, 1, 1] [2022-11-18 21:01:04,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:05,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:05,174 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:05,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:05,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1390069633, now seen corresponding path program 10 times [2022-11-18 21:01:05,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:05,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2124651200] [2022-11-18 21:01:05,175 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 21:01:05,175 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 [2022-11-18 21:01:05,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:05,177 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:05,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:05,464 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 21:01:05,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:05,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:05,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:06,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:06,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:06,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:06,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2124651200] [2022-11-18 21:01:06,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2124651200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:06,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:06,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:06,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124585427] [2022-11-18 21:01:06,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:06,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:06,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:06,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:06,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:06,149 INFO L87 Difference]: Start difference. First operand 1915 states and 5919 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:06,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:06,244 INFO L93 Difference]: Finished difference Result 2524 states and 7781 transitions. [2022-11-18 21:01:06,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:06,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:06,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:06,252 INFO L225 Difference]: With dead ends: 2524 [2022-11-18 21:01:06,252 INFO L226 Difference]: Without dead ends: 2463 [2022-11-18 21:01:06,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:06,253 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:06,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 47 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 55 Unchecked, 0.1s Time] [2022-11-18 21:01:06,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2022-11-18 21:01:06,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 1920. [2022-11-18 21:01:06,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1918 states have (on average 3.089155370177268) internal successors, (5925), 1919 states have internal predecessors, (5925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:06,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 5925 transitions. [2022-11-18 21:01:06,343 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 5925 transitions. Word has length 29 [2022-11-18 21:01:06,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:06,343 INFO L495 AbstractCegarLoop]: Abstraction has 1920 states and 5925 transitions. [2022-11-18 21:01:06,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:06,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 5925 transitions. [2022-11-18 21:01:06,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:06,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:06,349 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, 1, 1] [2022-11-18 21:01:06,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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)] Ended with exit code 0 [2022-11-18 21:01:06,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:06,563 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:06,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:06,564 INFO L85 PathProgramCache]: Analyzing trace with hash -666065699, now seen corresponding path program 11 times [2022-11-18 21:01:06,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:06,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919839153] [2022-11-18 21:01:06,565 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 21:01:06,565 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 [2022-11-18 21:01:06,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:06,567 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:06,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:06,800 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:06,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:06,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:06,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:07,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:07,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:07,449 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:07,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919839153] [2022-11-18 21:01:07,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919839153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:07,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:07,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:07,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141038198] [2022-11-18 21:01:07,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:07,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:07,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:07,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:07,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:07,452 INFO L87 Difference]: Start difference. First operand 1920 states and 5925 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:07,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:07,561 INFO L93 Difference]: Finished difference Result 2667 states and 8251 transitions. [2022-11-18 21:01:07,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:07,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:07,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:07,567 INFO L225 Difference]: With dead ends: 2667 [2022-11-18 21:01:07,567 INFO L226 Difference]: Without dead ends: 2646 [2022-11-18 21:01:07,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:07,568 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:07,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 47 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 67 Unchecked, 0.1s Time] [2022-11-18 21:01:07,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2022-11-18 21:01:07,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 1926. [2022-11-18 21:01:07,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1926 states, 1924 states have (on average 3.0867983367983367) internal successors, (5939), 1925 states have internal predecessors, (5939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:07,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 5939 transitions. [2022-11-18 21:01:07,640 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 5939 transitions. Word has length 29 [2022-11-18 21:01:07,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:07,640 INFO L495 AbstractCegarLoop]: Abstraction has 1926 states and 5939 transitions. [2022-11-18 21:01:07,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:07,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 5939 transitions. [2022-11-18 21:01:07,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:07,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:07,647 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, 1, 1] [2022-11-18 21:01:07,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:07,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:07,863 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:07,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:07,863 INFO L85 PathProgramCache]: Analyzing trace with hash 249015789, now seen corresponding path program 12 times [2022-11-18 21:01:07,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:07,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170018872] [2022-11-18 21:01:07,864 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 21:01:07,864 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 [2022-11-18 21:01:07,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:07,865 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:07,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:08,104 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-18 21:01:08,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:08,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:08,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:08,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:08,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:08,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:08,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [170018872] [2022-11-18 21:01:08,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [170018872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:08,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:08,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:08,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651933918] [2022-11-18 21:01:08,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:08,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:08,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:08,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:08,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:08,701 INFO L87 Difference]: Start difference. First operand 1926 states and 5939 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:08,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:08,810 INFO L93 Difference]: Finished difference Result 2657 states and 8225 transitions. [2022-11-18 21:01:08,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:08,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:08,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:08,817 INFO L225 Difference]: With dead ends: 2657 [2022-11-18 21:01:08,817 INFO L226 Difference]: Without dead ends: 2623 [2022-11-18 21:01:08,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:08,818 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:08,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 47 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 56 Unchecked, 0.1s Time] [2022-11-18 21:01:08,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2022-11-18 21:01:08,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 1923. [2022-11-18 21:01:08,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1923 states, 1921 states have (on average 3.088495575221239) internal successors, (5933), 1922 states have internal predecessors, (5933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:08,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 5933 transitions. [2022-11-18 21:01:08,888 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 5933 transitions. Word has length 29 [2022-11-18 21:01:08,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:08,889 INFO L495 AbstractCegarLoop]: Abstraction has 1923 states and 5933 transitions. [2022-11-18 21:01:08,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:08,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 5933 transitions. [2022-11-18 21:01:08,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:08,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:08,896 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, 1, 1] [2022-11-18 21:01:08,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:09,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:09,103 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:09,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:09,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1897445745, now seen corresponding path program 13 times [2022-11-18 21:01:09,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:09,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743035853] [2022-11-18 21:01:09,104 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 21:01:09,104 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 [2022-11-18 21:01:09,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:09,105 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:09,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:09,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:09,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:09,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:09,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:09,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743035853] [2022-11-18 21:01:09,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743035853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:09,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:09,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:09,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329694813] [2022-11-18 21:01:09,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:09,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:09,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:09,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:09,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:09,930 INFO L87 Difference]: Start difference. First operand 1923 states and 5933 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:10,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:10,021 INFO L93 Difference]: Finished difference Result 2600 states and 8050 transitions. [2022-11-18 21:01:10,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:10,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:10,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:10,027 INFO L225 Difference]: With dead ends: 2600 [2022-11-18 21:01:10,027 INFO L226 Difference]: Without dead ends: 2568 [2022-11-18 21:01:10,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:10,028 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:10,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 47 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 66 Unchecked, 0.1s Time] [2022-11-18 21:01:10,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states. [2022-11-18 21:01:10,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 1918. [2022-11-18 21:01:10,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1918 states, 1916 states have (on average 3.0918580375782883) internal successors, (5924), 1917 states have internal predecessors, (5924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:10,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 5924 transitions. [2022-11-18 21:01:10,124 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 5924 transitions. Word has length 29 [2022-11-18 21:01:10,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:10,124 INFO L495 AbstractCegarLoop]: Abstraction has 1918 states and 5924 transitions. [2022-11-18 21:01:10,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:10,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 5924 transitions. [2022-11-18 21:01:10,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:10,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:10,130 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, 1, 1] [2022-11-18 21:01:10,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:10,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:10,344 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:10,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:10,345 INFO L85 PathProgramCache]: Analyzing trace with hash 200200801, now seen corresponding path program 14 times [2022-11-18 21:01:10,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:10,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627260150] [2022-11-18 21:01:10,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:01:10,345 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 [2022-11-18 21:01:10,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:10,347 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:10,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:10,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:10,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:10,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:10,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:11,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:11,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:11,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:11,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627260150] [2022-11-18 21:01:11,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627260150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:11,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:11,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:11,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673294111] [2022-11-18 21:01:11,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:11,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:11,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:11,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:11,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:11,205 INFO L87 Difference]: Start difference. First operand 1918 states and 5924 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:11,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:11,333 INFO L93 Difference]: Finished difference Result 2591 states and 8027 transitions. [2022-11-18 21:01:11,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:11,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:11,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:11,341 INFO L225 Difference]: With dead ends: 2591 [2022-11-18 21:01:11,342 INFO L226 Difference]: Without dead ends: 2529 [2022-11-18 21:01:11,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:11,345 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:11,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 47 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 61 Unchecked, 0.1s Time] [2022-11-18 21:01:11,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2529 states. [2022-11-18 21:01:11,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2529 to 1913. [2022-11-18 21:01:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1911 states have (on average 3.0941915227629515) internal successors, (5913), 1912 states have internal predecessors, (5913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:11,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 5913 transitions. [2022-11-18 21:01:11,413 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 5913 transitions. Word has length 29 [2022-11-18 21:01:11,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:11,415 INFO L495 AbstractCegarLoop]: Abstraction has 1913 states and 5913 transitions. [2022-11-18 21:01:11,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:11,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 5913 transitions. [2022-11-18 21:01:11,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:11,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:11,421 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, 1, 1] [2022-11-18 21:01:11,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:11,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:11,636 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:11,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:11,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1149899493, now seen corresponding path program 15 times [2022-11-18 21:01:11,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:11,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673971793] [2022-11-18 21:01:11,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 21:01:11,637 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 [2022-11-18 21:01:11,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:11,638 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:11,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:11,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 21:01:11,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:11,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:11,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:12,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:12,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:12,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:12,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673971793] [2022-11-18 21:01:12,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673971793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:12,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:12,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:12,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772325159] [2022-11-18 21:01:12,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:12,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:12,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:12,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:12,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:12,498 INFO L87 Difference]: Start difference. First operand 1913 states and 5913 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:12,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:12,639 INFO L93 Difference]: Finished difference Result 2664 states and 8269 transitions. [2022-11-18 21:01:12,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:12,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:12,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:12,646 INFO L225 Difference]: With dead ends: 2664 [2022-11-18 21:01:12,647 INFO L226 Difference]: Without dead ends: 2430 [2022-11-18 21:01:12,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:12,648 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:12,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 47 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 59 Unchecked, 0.1s Time] [2022-11-18 21:01:12,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2022-11-18 21:01:12,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 1912. [2022-11-18 21:01:12,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1912 states, 1910 states have (on average 3.0916230366492146) internal successors, (5905), 1911 states have internal predecessors, (5905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:12,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 5905 transitions. [2022-11-18 21:01:12,732 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 5905 transitions. Word has length 29 [2022-11-18 21:01:12,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:12,733 INFO L495 AbstractCegarLoop]: Abstraction has 1912 states and 5905 transitions. [2022-11-18 21:01:12,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:12,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 5905 transitions. [2022-11-18 21:01:12,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:12,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:12,738 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, 1, 1] [2022-11-18 21:01:12,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:12,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:12,953 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:12,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:12,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1826384157, now seen corresponding path program 16 times [2022-11-18 21:01:12,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:12,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503373586] [2022-11-18 21:01:12,954 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 21:01:12,954 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 [2022-11-18 21:01:12,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:12,955 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:12,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:13,237 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 21:01:13,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:13,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:13,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:13,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:13,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:13,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:13,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503373586] [2022-11-18 21:01:13,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503373586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:13,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:13,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:13,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028841010] [2022-11-18 21:01:13,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:13,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:13,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:13,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:13,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:13,846 INFO L87 Difference]: Start difference. First operand 1912 states and 5905 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:13,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:13,949 INFO L93 Difference]: Finished difference Result 2920 states and 9034 transitions. [2022-11-18 21:01:13,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:13,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:13,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:13,955 INFO L225 Difference]: With dead ends: 2920 [2022-11-18 21:01:13,955 INFO L226 Difference]: Without dead ends: 2349 [2022-11-18 21:01:13,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:13,956 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 73 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:13,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 47 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 73 Unchecked, 0.1s Time] [2022-11-18 21:01:13,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2022-11-18 21:01:14,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 1869. [2022-11-18 21:01:14,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1869 states, 1867 states have (on average 3.067487948580611) internal successors, (5727), 1868 states have internal predecessors, (5727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:14,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 5727 transitions. [2022-11-18 21:01:14,045 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 5727 transitions. Word has length 29 [2022-11-18 21:01:14,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:14,045 INFO L495 AbstractCegarLoop]: Abstraction has 1869 states and 5727 transitions. [2022-11-18 21:01:14,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:14,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 5727 transitions. [2022-11-18 21:01:14,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:14,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:14,052 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, 1, 1] [2022-11-18 21:01:14,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:14,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:14,257 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:14,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:14,258 INFO L85 PathProgramCache]: Analyzing trace with hash 996996033, now seen corresponding path program 17 times [2022-11-18 21:01:14,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:14,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140924038] [2022-11-18 21:01:14,259 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 21:01:14,259 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 [2022-11-18 21:01:14,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:14,260 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:14,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:14,540 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:14,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:14,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:14,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:15,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:15,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:15,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:15,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140924038] [2022-11-18 21:01:15,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140924038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:15,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:15,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:15,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083494691] [2022-11-18 21:01:15,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:15,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:15,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:15,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:15,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:15,172 INFO L87 Difference]: Start difference. First operand 1869 states and 5727 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:15,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:15,288 INFO L93 Difference]: Finished difference Result 2390 states and 7247 transitions. [2022-11-18 21:01:15,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:15,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:15,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:15,297 INFO L225 Difference]: With dead ends: 2390 [2022-11-18 21:01:15,297 INFO L226 Difference]: Without dead ends: 2312 [2022-11-18 21:01:15,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:15,299 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:15,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 47 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 71 Unchecked, 0.1s Time] [2022-11-18 21:01:15,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2022-11-18 21:01:15,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 1864. [2022-11-18 21:01:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1864 states, 1862 states have (on average 3.0703544575725026) internal successors, (5717), 1863 states have internal predecessors, (5717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:15,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 5717 transitions. [2022-11-18 21:01:15,366 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 5717 transitions. Word has length 29 [2022-11-18 21:01:15,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:15,367 INFO L495 AbstractCegarLoop]: Abstraction has 1864 states and 5717 transitions. [2022-11-18 21:01:15,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:15,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 5717 transitions. [2022-11-18 21:01:15,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:15,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:15,372 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, 1, 1] [2022-11-18 21:01:15,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:15,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:15,587 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:15,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:15,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1260966769, now seen corresponding path program 18 times [2022-11-18 21:01:15,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:15,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385550409] [2022-11-18 21:01:15,587 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 21:01:15,588 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 [2022-11-18 21:01:15,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:15,589 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:15,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:15,825 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-18 21:01:15,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:15,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 21:01:15,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:16,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:16,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:16,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385550409] [2022-11-18 21:01:16,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385550409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:16,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:16,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:16,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951001736] [2022-11-18 21:01:16,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:16,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:16,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:16,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:16,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:16,468 INFO L87 Difference]: Start difference. First operand 1864 states and 5717 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:16,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:16,686 INFO L93 Difference]: Finished difference Result 2735 states and 8407 transitions. [2022-11-18 21:01:16,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:16,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:16,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:16,691 INFO L225 Difference]: With dead ends: 2735 [2022-11-18 21:01:16,691 INFO L226 Difference]: Without dead ends: 2572 [2022-11-18 21:01:16,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:16,692 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 20 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:16,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 46 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 45 Unchecked, 0.2s Time] [2022-11-18 21:01:16,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2022-11-18 21:01:16,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 1844. [2022-11-18 21:01:16,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1842 states have (on average 3.061346362649294) internal successors, (5639), 1843 states have internal predecessors, (5639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:16,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 5639 transitions. [2022-11-18 21:01:16,735 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 5639 transitions. Word has length 29 [2022-11-18 21:01:16,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:16,735 INFO L495 AbstractCegarLoop]: Abstraction has 1844 states and 5639 transitions. [2022-11-18 21:01:16,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:16,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 5639 transitions. [2022-11-18 21:01:16,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:16,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:16,741 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, 1, 1] [2022-11-18 21:01:16,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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)] Ended with exit code 0 [2022-11-18 21:01:16,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:16,942 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:16,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:16,942 INFO L85 PathProgramCache]: Analyzing trace with hash 478381877, now seen corresponding path program 19 times [2022-11-18 21:01:16,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:16,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515948012] [2022-11-18 21:01:16,943 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 21:01:16,943 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 [2022-11-18 21:01:16,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:16,944 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:16,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:17,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:17,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:17,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:17,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:17,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:17,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515948012] [2022-11-18 21:01:17,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515948012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:17,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:17,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:17,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443188064] [2022-11-18 21:01:17,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:17,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:17,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:17,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:17,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:17,849 INFO L87 Difference]: Start difference. First operand 1844 states and 5639 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:17,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:17,948 INFO L93 Difference]: Finished difference Result 2377 states and 7189 transitions. [2022-11-18 21:01:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:17,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:17,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:17,955 INFO L225 Difference]: With dead ends: 2377 [2022-11-18 21:01:17,955 INFO L226 Difference]: Without dead ends: 2230 [2022-11-18 21:01:17,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:17,956 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 74 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:17,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 43 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 74 Unchecked, 0.1s Time] [2022-11-18 21:01:17,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2022-11-18 21:01:17,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 1848. [2022-11-18 21:01:18,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1848 states, 1846 states have (on average 3.0590465872156014) internal successors, (5647), 1847 states have internal predecessors, (5647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 5647 transitions. [2022-11-18 21:01:18,008 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 5647 transitions. Word has length 29 [2022-11-18 21:01:18,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:18,009 INFO L495 AbstractCegarLoop]: Abstraction has 1848 states and 5647 transitions. [2022-11-18 21:01:18,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 5647 transitions. [2022-11-18 21:01:18,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:18,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:18,014 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, 1, 1] [2022-11-18 21:01:18,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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)] Ended with exit code 0 [2022-11-18 21:01:18,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:18,228 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:18,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:18,228 INFO L85 PathProgramCache]: Analyzing trace with hash 705113559, now seen corresponding path program 20 times [2022-11-18 21:01:18,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:18,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116723507] [2022-11-18 21:01:18,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:01:18,229 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 [2022-11-18 21:01:18,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:18,230 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:18,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:18,457 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:18,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:18,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:18,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:19,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:19,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:19,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:19,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116723507] [2022-11-18 21:01:19,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116723507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:19,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:19,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:19,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604165789] [2022-11-18 21:01:19,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:19,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:19,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:19,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:19,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:19,096 INFO L87 Difference]: Start difference. First operand 1848 states and 5647 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:19,194 INFO L93 Difference]: Finished difference Result 2697 states and 8122 transitions. [2022-11-18 21:01:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:19,195 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:19,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:19,200 INFO L225 Difference]: With dead ends: 2697 [2022-11-18 21:01:19,200 INFO L226 Difference]: Without dead ends: 2526 [2022-11-18 21:01:19,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:19,201 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 87 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:19,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 47 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 87 Unchecked, 0.1s Time] [2022-11-18 21:01:19,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2022-11-18 21:01:19,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 1830. [2022-11-18 21:01:19,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1828 states have (on average 3.0683807439824946) internal successors, (5609), 1829 states have internal predecessors, (5609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 5609 transitions. [2022-11-18 21:01:19,242 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 5609 transitions. Word has length 29 [2022-11-18 21:01:19,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:19,242 INFO L495 AbstractCegarLoop]: Abstraction has 1830 states and 5609 transitions. [2022-11-18 21:01:19,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:19,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 5609 transitions. [2022-11-18 21:01:19,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:19,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:19,248 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, 1, 1] [2022-11-18 21:01:19,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:19,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:19,462 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:19,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:19,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1279956365, now seen corresponding path program 21 times [2022-11-18 21:01:19,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:19,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597882664] [2022-11-18 21:01:19,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 21:01:19,463 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 [2022-11-18 21:01:19,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:19,466 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:19,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:19,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 21:01:19,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:19,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:19,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:20,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:20,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:20,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597882664] [2022-11-18 21:01:20,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597882664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:20,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:20,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:20,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798467702] [2022-11-18 21:01:20,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:20,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:20,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:20,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:20,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:20,301 INFO L87 Difference]: Start difference. First operand 1830 states and 5609 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:20,421 INFO L93 Difference]: Finished difference Result 2354 states and 7138 transitions. [2022-11-18 21:01:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:20,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:20,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:20,428 INFO L225 Difference]: With dead ends: 2354 [2022-11-18 21:01:20,428 INFO L226 Difference]: Without dead ends: 2237 [2022-11-18 21:01:20,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:20,429 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:20,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 43 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 78 Unchecked, 0.1s Time] [2022-11-18 21:01:20,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2022-11-18 21:01:20,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 1828. [2022-11-18 21:01:20,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1828 states, 1826 states have (on average 3.067907995618839) internal successors, (5602), 1827 states have internal predecessors, (5602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 5602 transitions. [2022-11-18 21:01:20,481 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 5602 transitions. Word has length 29 [2022-11-18 21:01:20,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:20,481 INFO L495 AbstractCegarLoop]: Abstraction has 1828 states and 5602 transitions. [2022-11-18 21:01:20,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:20,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 5602 transitions. [2022-11-18 21:01:20,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:20,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:20,487 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, 1, 1] [2022-11-18 21:01:20,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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)] Forceful destruction successful, exit code 0 [2022-11-18 21:01:20,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:20,701 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:20,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:20,701 INFO L85 PathProgramCache]: Analyzing trace with hash 945283699, now seen corresponding path program 22 times [2022-11-18 21:01:20,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:20,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352417356] [2022-11-18 21:01:20,702 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 21:01:20,702 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 [2022-11-18 21:01:20,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:20,703 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:20,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:20,943 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 21:01:20,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:20,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:20,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:21,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:21,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:21,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:21,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352417356] [2022-11-18 21:01:21,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352417356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:21,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:21,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:21,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967559929] [2022-11-18 21:01:21,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:21,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:21,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:21,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:21,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:21,585 INFO L87 Difference]: Start difference. First operand 1828 states and 5602 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:21,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:21,713 INFO L93 Difference]: Finished difference Result 2567 states and 7759 transitions. [2022-11-18 21:01:21,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:21,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:21,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:21,721 INFO L225 Difference]: With dead ends: 2567 [2022-11-18 21:01:21,721 INFO L226 Difference]: Without dead ends: 2280 [2022-11-18 21:01:21,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:21,729 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 83 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:21,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 47 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 83 Unchecked, 0.1s Time] [2022-11-18 21:01:21,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2022-11-18 21:01:21,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 1824. [2022-11-18 21:01:21,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1822 states have (on average 3.065861690450055) internal successors, (5586), 1823 states have internal predecessors, (5586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:21,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 5586 transitions. [2022-11-18 21:01:21,783 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 5586 transitions. Word has length 29 [2022-11-18 21:01:21,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:21,783 INFO L495 AbstractCegarLoop]: Abstraction has 1824 states and 5586 transitions. [2022-11-18 21:01:21,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:21,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 5586 transitions. [2022-11-18 21:01:21,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:21,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:21,789 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, 1, 1] [2022-11-18 21:01:21,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:22,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:22,003 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:22,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:22,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1691216921, now seen corresponding path program 23 times [2022-11-18 21:01:22,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:22,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774812014] [2022-11-18 21:01:22,004 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 21:01:22,004 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 [2022-11-18 21:01:22,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:22,006 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:22,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:22,299 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:22,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:22,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:22,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:22,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:22,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:22,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:22,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774812014] [2022-11-18 21:01:22,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774812014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:22,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:22,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:22,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481928579] [2022-11-18 21:01:22,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:22,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:22,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:22,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:22,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:22,964 INFO L87 Difference]: Start difference. First operand 1824 states and 5586 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:23,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:23,075 INFO L93 Difference]: Finished difference Result 2561 states and 7737 transitions. [2022-11-18 21:01:23,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:23,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:23,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:23,081 INFO L225 Difference]: With dead ends: 2561 [2022-11-18 21:01:23,082 INFO L226 Difference]: Without dead ends: 2204 [2022-11-18 21:01:23,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:23,083 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:23,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 47 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 79 Unchecked, 0.1s Time] [2022-11-18 21:01:23,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2022-11-18 21:01:23,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 1820. [2022-11-18 21:01:23,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 1818 states have (on average 3.0665566556655666) internal successors, (5575), 1819 states have internal predecessors, (5575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:23,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 5575 transitions. [2022-11-18 21:01:23,128 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 5575 transitions. Word has length 29 [2022-11-18 21:01:23,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:23,128 INFO L495 AbstractCegarLoop]: Abstraction has 1820 states and 5575 transitions. [2022-11-18 21:01:23,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:23,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 5575 transitions. [2022-11-18 21:01:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:23,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:23,131 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, 1, 1] [2022-11-18 21:01:23,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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)] Ended with exit code 0 [2022-11-18 21:01:23,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:23,332 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:23,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:23,332 INFO L85 PathProgramCache]: Analyzing trace with hash 2010640345, now seen corresponding path program 24 times [2022-11-18 21:01:23,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:23,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5125506] [2022-11-18 21:01:23,333 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 21:01:23,333 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 [2022-11-18 21:01:23,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:23,334 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:23,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:23,594 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-18 21:01:23,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:23,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:23,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:24,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:24,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:24,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5125506] [2022-11-18 21:01:24,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [5125506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:24,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:24,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:24,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323432075] [2022-11-18 21:01:24,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:24,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:24,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:24,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:24,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:24,144 INFO L87 Difference]: Start difference. First operand 1820 states and 5575 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:24,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:24,244 INFO L93 Difference]: Finished difference Result 2504 states and 7508 transitions. [2022-11-18 21:01:24,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:24,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:24,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:24,249 INFO L225 Difference]: With dead ends: 2504 [2022-11-18 21:01:24,250 INFO L226 Difference]: Without dead ends: 2437 [2022-11-18 21:01:24,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:24,251 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:24,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 47 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 66 Unchecked, 0.1s Time] [2022-11-18 21:01:24,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2022-11-18 21:01:24,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 1822. [2022-11-18 21:01:24,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1822 states, 1820 states have (on average 3.065934065934066) internal successors, (5580), 1821 states have internal predecessors, (5580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:24,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1822 states and 5580 transitions. [2022-11-18 21:01:24,303 INFO L78 Accepts]: Start accepts. Automaton has 1822 states and 5580 transitions. Word has length 29 [2022-11-18 21:01:24,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:24,303 INFO L495 AbstractCegarLoop]: Abstraction has 1822 states and 5580 transitions. [2022-11-18 21:01:24,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:24,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1822 states and 5580 transitions. [2022-11-18 21:01:24,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:24,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:24,309 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, 1, 1] [2022-11-18 21:01:24,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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)] Forceful destruction successful, exit code 0 [2022-11-18 21:01:24,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:24,523 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:24,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:24,523 INFO L85 PathProgramCache]: Analyzing trace with hash -547369241, now seen corresponding path program 25 times [2022-11-18 21:01:24,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:24,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425430916] [2022-11-18 21:01:24,524 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 21:01:24,524 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 [2022-11-18 21:01:24,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:24,525 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:24,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:24,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:24,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:25,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:25,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:25,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:25,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425430916] [2022-11-18 21:01:25,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425430916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:25,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:25,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:25,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553107840] [2022-11-18 21:01:25,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:25,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:25,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:25,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:25,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:25,357 INFO L87 Difference]: Start difference. First operand 1822 states and 5580 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:25,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:25,447 INFO L93 Difference]: Finished difference Result 2203 states and 6658 transitions. [2022-11-18 21:01:25,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:25,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:25,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:25,452 INFO L225 Difference]: With dead ends: 2203 [2022-11-18 21:01:25,453 INFO L226 Difference]: Without dead ends: 2138 [2022-11-18 21:01:25,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:25,453 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:25,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 47 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 57 Unchecked, 0.1s Time] [2022-11-18 21:01:25,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2022-11-18 21:01:25,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 1812. [2022-11-18 21:01:25,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1812 states, 1810 states have (on average 3.0701657458563534) internal successors, (5557), 1811 states have internal predecessors, (5557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:25,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 5557 transitions. [2022-11-18 21:01:25,496 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 5557 transitions. Word has length 29 [2022-11-18 21:01:25,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:25,496 INFO L495 AbstractCegarLoop]: Abstraction has 1812 states and 5557 transitions. [2022-11-18 21:01:25,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:25,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 5557 transitions. [2022-11-18 21:01:25,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:25,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:25,502 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, 1, 1] [2022-11-18 21:01:25,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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)] Forceful destruction successful, exit code 0 [2022-11-18 21:01:25,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:25,715 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:25,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:25,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1622354953, now seen corresponding path program 26 times [2022-11-18 21:01:25,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:25,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315728586] [2022-11-18 21:01:25,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:01:25,716 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 [2022-11-18 21:01:25,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:25,718 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:25,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:26,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:26,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:26,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:26,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:26,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:26,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:26,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:26,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315728586] [2022-11-18 21:01:26,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315728586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:26,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:26,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:26,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140928651] [2022-11-18 21:01:26,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:26,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:26,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:26,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:26,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:26,720 INFO L87 Difference]: Start difference. First operand 1812 states and 5557 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:26,836 INFO L93 Difference]: Finished difference Result 2487 states and 7465 transitions. [2022-11-18 21:01:26,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:26,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:26,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:26,842 INFO L225 Difference]: With dead ends: 2487 [2022-11-18 21:01:26,842 INFO L226 Difference]: Without dead ends: 2354 [2022-11-18 21:01:26,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:26,843 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:26,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 47 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 82 Unchecked, 0.1s Time] [2022-11-18 21:01:26,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2022-11-18 21:01:26,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 1794. [2022-11-18 21:01:26,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1792 states have (on average 3.078125) internal successors, (5516), 1793 states have internal predecessors, (5516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 5516 transitions. [2022-11-18 21:01:26,895 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 5516 transitions. Word has length 29 [2022-11-18 21:01:26,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:26,895 INFO L495 AbstractCegarLoop]: Abstraction has 1794 states and 5516 transitions. [2022-11-18 21:01:26,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:26,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 5516 transitions. [2022-11-18 21:01:26,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:26,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:26,901 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, 1, 1] [2022-11-18 21:01:26,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:27,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:27,116 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:27,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:27,116 INFO L85 PathProgramCache]: Analyzing trace with hash -514162691, now seen corresponding path program 27 times [2022-11-18 21:01:27,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:27,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279651278] [2022-11-18 21:01:27,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 21:01:27,117 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 [2022-11-18 21:01:27,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:27,118 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:27,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:27,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 21:01:27,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:27,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:27,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:28,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:28,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:28,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279651278] [2022-11-18 21:01:28,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279651278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:28,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:28,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:28,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220241187] [2022-11-18 21:01:28,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:28,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:28,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:28,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:28,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:28,054 INFO L87 Difference]: Start difference. First operand 1794 states and 5516 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:28,160 INFO L93 Difference]: Finished difference Result 2315 states and 7036 transitions. [2022-11-18 21:01:28,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:28,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:28,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:28,165 INFO L225 Difference]: With dead ends: 2315 [2022-11-18 21:01:28,165 INFO L226 Difference]: Without dead ends: 2162 [2022-11-18 21:01:28,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:28,165 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:28,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 47 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 59 Unchecked, 0.1s Time] [2022-11-18 21:01:28,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2162 states. [2022-11-18 21:01:28,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2162 to 1784. [2022-11-18 21:01:28,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1782 states have (on average 3.0819304152637486) internal successors, (5492), 1783 states have internal predecessors, (5492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 5492 transitions. [2022-11-18 21:01:28,221 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 5492 transitions. Word has length 29 [2022-11-18 21:01:28,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:28,221 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 5492 transitions. [2022-11-18 21:01:28,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:28,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 5492 transitions. [2022-11-18 21:01:28,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:28,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:28,224 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, 1, 1] [2022-11-18 21:01:28,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:28,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:28,425 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:28,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:28,426 INFO L85 PathProgramCache]: Analyzing trace with hash -921004467, now seen corresponding path program 28 times [2022-11-18 21:01:28,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:28,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046075614] [2022-11-18 21:01:28,427 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 21:01:28,427 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 [2022-11-18 21:01:28,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:28,428 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:28,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:28,682 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 21:01:28,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:28,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:28,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:29,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:29,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:29,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:29,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046075614] [2022-11-18 21:01:29,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046075614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:29,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:29,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:29,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180919089] [2022-11-18 21:01:29,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:29,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:29,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:29,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:29,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:29,325 INFO L87 Difference]: Start difference. First operand 1784 states and 5492 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:29,428 INFO L93 Difference]: Finished difference Result 2305 states and 7012 transitions. [2022-11-18 21:01:29,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:29,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:29,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:29,433 INFO L225 Difference]: With dead ends: 2305 [2022-11-18 21:01:29,433 INFO L226 Difference]: Without dead ends: 2006 [2022-11-18 21:01:29,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:29,434 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 76 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:29,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 47 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 76 Unchecked, 0.1s Time] [2022-11-18 21:01:29,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2022-11-18 21:01:29,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1768. [2022-11-18 21:01:29,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1768 states, 1766 states have (on average 3.090600226500566) internal successors, (5458), 1767 states have internal predecessors, (5458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1768 states to 1768 states and 5458 transitions. [2022-11-18 21:01:29,472 INFO L78 Accepts]: Start accepts. Automaton has 1768 states and 5458 transitions. Word has length 29 [2022-11-18 21:01:29,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:29,473 INFO L495 AbstractCegarLoop]: Abstraction has 1768 states and 5458 transitions. [2022-11-18 21:01:29,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:29,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1768 states and 5458 transitions. [2022-11-18 21:01:29,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:29,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:29,476 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, 1, 1] [2022-11-18 21:01:29,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:29,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:29,677 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:29,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:29,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1811548665, now seen corresponding path program 29 times [2022-11-18 21:01:29,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:29,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474912781] [2022-11-18 21:01:29,677 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 21:01:29,678 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 [2022-11-18 21:01:29,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:29,678 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:29,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (37)] Waiting until timeout for monitored process [2022-11-18 21:01:29,928 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:29,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:29,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:29,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:30,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:30,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:30,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:30,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474912781] [2022-11-18 21:01:30,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474912781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:30,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:30,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:30,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522507672] [2022-11-18 21:01:30,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:30,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:30,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:30,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:30,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:30,568 INFO L87 Difference]: Start difference. First operand 1768 states and 5458 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:30,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:30,668 INFO L93 Difference]: Finished difference Result 2649 states and 8200 transitions. [2022-11-18 21:01:30,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:30,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:30,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:30,674 INFO L225 Difference]: With dead ends: 2649 [2022-11-18 21:01:30,674 INFO L226 Difference]: Without dead ends: 2502 [2022-11-18 21:01:30,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:30,675 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:30,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 47 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 62 Unchecked, 0.1s Time] [2022-11-18 21:01:30,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2022-11-18 21:01:30,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 1780. [2022-11-18 21:01:30,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1780 states, 1778 states have (on average 3.089988751406074) internal successors, (5494), 1779 states have internal predecessors, (5494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:30,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1780 states to 1780 states and 5494 transitions. [2022-11-18 21:01:30,712 INFO L78 Accepts]: Start accepts. Automaton has 1780 states and 5494 transitions. Word has length 29 [2022-11-18 21:01:30,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:30,713 INFO L495 AbstractCegarLoop]: Abstraction has 1780 states and 5494 transitions. [2022-11-18 21:01:30,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:30,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1780 states and 5494 transitions. [2022-11-18 21:01:30,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:30,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:30,717 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, 1, 1] [2022-11-18 21:01:30,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (37)] Ended with exit code 0 [2022-11-18 21:01:30,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:30,918 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:30,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:30,918 INFO L85 PathProgramCache]: Analyzing trace with hash 2038280347, now seen corresponding path program 30 times [2022-11-18 21:01:30,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:30,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949369303] [2022-11-18 21:01:30,919 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 21:01:30,919 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 [2022-11-18 21:01:30,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:30,920 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:30,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (38)] Waiting until timeout for monitored process [2022-11-18 21:01:31,171 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-18 21:01:31,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:31,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:31,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:31,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:31,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:31,788 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:31,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949369303] [2022-11-18 21:01:31,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949369303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:31,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:31,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:31,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351322711] [2022-11-18 21:01:31,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:31,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:31,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:31,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:31,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:31,790 INFO L87 Difference]: Start difference. First operand 1780 states and 5494 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:31,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:31,891 INFO L93 Difference]: Finished difference Result 2974 states and 9167 transitions. [2022-11-18 21:01:31,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:31,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:31,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:31,897 INFO L225 Difference]: With dead ends: 2974 [2022-11-18 21:01:31,898 INFO L226 Difference]: Without dead ends: 2855 [2022-11-18 21:01:31,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:31,898 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:31,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 47 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 69 Unchecked, 0.1s Time] [2022-11-18 21:01:31,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2022-11-18 21:01:31,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 1829. [2022-11-18 21:01:31,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1827 states have (on average 3.0821018062397374) internal successors, (5631), 1828 states have internal predecessors, (5631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:31,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 5631 transitions. [2022-11-18 21:01:31,939 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 5631 transitions. Word has length 29 [2022-11-18 21:01:31,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:31,939 INFO L495 AbstractCegarLoop]: Abstraction has 1829 states and 5631 transitions. [2022-11-18 21:01:31,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:31,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 5631 transitions. [2022-11-18 21:01:31,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:31,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:31,943 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, 1, 1] [2022-11-18 21:01:31,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (38)] Ended with exit code 0 [2022-11-18 21:01:32,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:32,143 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:32,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:32,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1681844143, now seen corresponding path program 31 times [2022-11-18 21:01:32,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:32,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100321660] [2022-11-18 21:01:32,144 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 21:01:32,144 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 [2022-11-18 21:01:32,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:32,145 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:32,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (39)] Waiting until timeout for monitored process [2022-11-18 21:01:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:32,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:32,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:33,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:33,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:33,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:33,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100321660] [2022-11-18 21:01:33,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100321660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:33,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:33,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:33,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793288959] [2022-11-18 21:01:33,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:33,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:33,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:33,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:33,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:33,058 INFO L87 Difference]: Start difference. First operand 1829 states and 5631 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:33,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:33,159 INFO L93 Difference]: Finished difference Result 3000 states and 9220 transitions. [2022-11-18 21:01:33,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:33,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:33,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:33,165 INFO L225 Difference]: With dead ends: 3000 [2022-11-18 21:01:33,165 INFO L226 Difference]: Without dead ends: 2769 [2022-11-18 21:01:33,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:33,166 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 89 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:33,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 47 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 89 Unchecked, 0.1s Time] [2022-11-18 21:01:33,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2022-11-18 21:01:33,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 1835. [2022-11-18 21:01:33,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1833 states have (on average 3.073104200763775) internal successors, (5633), 1834 states have internal predecessors, (5633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:33,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 5633 transitions. [2022-11-18 21:01:33,206 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 5633 transitions. Word has length 29 [2022-11-18 21:01:33,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:33,206 INFO L495 AbstractCegarLoop]: Abstraction has 1835 states and 5633 transitions. [2022-11-18 21:01:33,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:33,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 5633 transitions. [2022-11-18 21:01:33,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:33,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:33,210 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, 1, 1] [2022-11-18 21:01:33,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (39)] Ended with exit code 0 [2022-11-18 21:01:33,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:33,412 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:33,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:33,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2016516809, now seen corresponding path program 32 times [2022-11-18 21:01:33,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:33,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624045845] [2022-11-18 21:01:33,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:01:33,413 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 [2022-11-18 21:01:33,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:33,415 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:33,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (40)] Waiting until timeout for monitored process [2022-11-18 21:01:33,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:33,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:33,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:33,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:34,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:34,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:34,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:34,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624045845] [2022-11-18 21:01:34,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624045845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:34,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:34,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:34,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333385719] [2022-11-18 21:01:34,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:34,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:34,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:34,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:34,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:34,301 INFO L87 Difference]: Start difference. First operand 1835 states and 5633 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:34,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:34,404 INFO L93 Difference]: Finished difference Result 2996 states and 9199 transitions. [2022-11-18 21:01:34,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:34,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:34,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:34,409 INFO L225 Difference]: With dead ends: 2996 [2022-11-18 21:01:34,409 INFO L226 Difference]: Without dead ends: 2537 [2022-11-18 21:01:34,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:34,410 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 94 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:34,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 47 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 94 Unchecked, 0.1s Time] [2022-11-18 21:01:34,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2022-11-18 21:01:34,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 1827. [2022-11-18 21:01:34,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1825 states have (on average 3.0635616438356164) internal successors, (5591), 1826 states have internal predecessors, (5591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:34,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 5591 transitions. [2022-11-18 21:01:34,455 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 5591 transitions. Word has length 29 [2022-11-18 21:01:34,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:34,456 INFO L495 AbstractCegarLoop]: Abstraction has 1827 states and 5591 transitions. [2022-11-18 21:01:34,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:34,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 5591 transitions. [2022-11-18 21:01:34,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:34,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:34,461 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, 1, 1] [2022-11-18 21:01:34,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (40)] Ended with exit code 0 [2022-11-18 21:01:34,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:34,662 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:34,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:34,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1270583587, now seen corresponding path program 33 times [2022-11-18 21:01:34,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:34,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219366637] [2022-11-18 21:01:34,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 21:01:34,663 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 [2022-11-18 21:01:34,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:34,664 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:34,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (41)] Waiting until timeout for monitored process [2022-11-18 21:01:34,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 21:01:34,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:34,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:34,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:35,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:35,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:35,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219366637] [2022-11-18 21:01:35,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219366637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:35,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:35,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:35,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457558350] [2022-11-18 21:01:35,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:35,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:35,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:35,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:35,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:35,572 INFO L87 Difference]: Start difference. First operand 1827 states and 5591 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:35,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:35,678 INFO L93 Difference]: Finished difference Result 2684 states and 8267 transitions. [2022-11-18 21:01:35,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:35,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:35,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:35,685 INFO L225 Difference]: With dead ends: 2684 [2022-11-18 21:01:35,686 INFO L226 Difference]: Without dead ends: 2397 [2022-11-18 21:01:35,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:35,687 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:35,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 47 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 77 Unchecked, 0.1s Time] [2022-11-18 21:01:35,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2022-11-18 21:01:35,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 1823. [2022-11-18 21:01:35,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1823 states, 1821 states have (on average 3.0647995606809446) internal successors, (5581), 1822 states have internal predecessors, (5581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:35,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1823 states to 1823 states and 5581 transitions. [2022-11-18 21:01:35,731 INFO L78 Accepts]: Start accepts. Automaton has 1823 states and 5581 transitions. Word has length 29 [2022-11-18 21:01:35,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:35,731 INFO L495 AbstractCegarLoop]: Abstraction has 1823 states and 5581 transitions. [2022-11-18 21:01:35,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:35,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1823 states and 5581 transitions. [2022-11-18 21:01:35,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:35,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:35,735 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, 1, 1] [2022-11-18 21:01:35,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (41)] Ended with exit code 0 [2022-11-18 21:01:35,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:35,935 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:35,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:35,935 INFO L85 PathProgramCache]: Analyzing trace with hash -951160163, now seen corresponding path program 34 times [2022-11-18 21:01:35,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:35,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284657752] [2022-11-18 21:01:35,936 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 21:01:35,936 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 [2022-11-18 21:01:35,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:35,937 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:35,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (42)] Waiting until timeout for monitored process [2022-11-18 21:01:36,187 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 21:01:36,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:36,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:36,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:36,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:36,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:36,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:36,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284657752] [2022-11-18 21:01:36,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284657752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:36,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:36,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:36,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962552487] [2022-11-18 21:01:36,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:36,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:36,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:36,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:36,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:36,810 INFO L87 Difference]: Start difference. First operand 1823 states and 5581 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:36,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:36,949 INFO L93 Difference]: Finished difference Result 2502 states and 7638 transitions. [2022-11-18 21:01:36,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:36,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:36,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:36,955 INFO L225 Difference]: With dead ends: 2502 [2022-11-18 21:01:36,955 INFO L226 Difference]: Without dead ends: 2455 [2022-11-18 21:01:36,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:36,956 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:36,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 47 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 77 Unchecked, 0.1s Time] [2022-11-18 21:01:36,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2022-11-18 21:01:36,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 1823. [2022-11-18 21:01:36,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1823 states, 1821 states have (on average 3.0675453047775947) internal successors, (5586), 1822 states have internal predecessors, (5586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:36,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1823 states to 1823 states and 5586 transitions. [2022-11-18 21:01:36,994 INFO L78 Accepts]: Start accepts. Automaton has 1823 states and 5586 transitions. Word has length 29 [2022-11-18 21:01:36,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:36,994 INFO L495 AbstractCegarLoop]: Abstraction has 1823 states and 5586 transitions. [2022-11-18 21:01:36,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:36,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1823 states and 5586 transitions. [2022-11-18 21:01:36,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:36,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:36,998 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, 1, 1] [2022-11-18 21:01:37,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (42)] Forceful destruction successful, exit code 0 [2022-11-18 21:01:37,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:37,200 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:37,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:37,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1646562189, now seen corresponding path program 35 times [2022-11-18 21:01:37,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:37,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666422726] [2022-11-18 21:01:37,201 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 21:01:37,201 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 [2022-11-18 21:01:37,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:37,202 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:37,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (43)] Waiting until timeout for monitored process [2022-11-18 21:01:37,458 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:37,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:37,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:37,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:38,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:38,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:38,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:38,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666422726] [2022-11-18 21:01:38,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666422726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:38,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:38,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:38,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387524839] [2022-11-18 21:01:38,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:38,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:38,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:38,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:38,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:38,043 INFO L87 Difference]: Start difference. First operand 1823 states and 5586 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:38,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:38,137 INFO L93 Difference]: Finished difference Result 2794 states and 8510 transitions. [2022-11-18 21:01:38,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:38,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:38,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:38,143 INFO L225 Difference]: With dead ends: 2794 [2022-11-18 21:01:38,143 INFO L226 Difference]: Without dead ends: 2729 [2022-11-18 21:01:38,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:38,143 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:38,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 47 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 69 Unchecked, 0.1s Time] [2022-11-18 21:01:38,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2022-11-18 21:01:38,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 1816. [2022-11-18 21:01:38,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1816 states, 1814 states have (on average 3.0683572216097024) internal successors, (5566), 1815 states have internal predecessors, (5566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:38,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 5566 transitions. [2022-11-18 21:01:38,181 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 5566 transitions. Word has length 29 [2022-11-18 21:01:38,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:38,181 INFO L495 AbstractCegarLoop]: Abstraction has 1816 states and 5566 transitions. [2022-11-18 21:01:38,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:38,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 5566 transitions. [2022-11-18 21:01:38,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:38,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:38,184 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, 1, 1] [2022-11-18 21:01:38,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (43)] Ended with exit code 0 [2022-11-18 21:01:38,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:38,385 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:38,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:38,385 INFO L85 PathProgramCache]: Analyzing trace with hash 785797547, now seen corresponding path program 36 times [2022-11-18 21:01:38,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:38,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239702388] [2022-11-18 21:01:38,386 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 21:01:38,386 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 [2022-11-18 21:01:38,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:38,387 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:38,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (44)] Waiting until timeout for monitored process [2022-11-18 21:01:38,633 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-18 21:01:38,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:38,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:38,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:39,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:39,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:39,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239702388] [2022-11-18 21:01:39,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239702388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:39,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:39,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:39,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66338084] [2022-11-18 21:01:39,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:39,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:39,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:39,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:39,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:39,234 INFO L87 Difference]: Start difference. First operand 1816 states and 5566 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:39,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:39,331 INFO L93 Difference]: Finished difference Result 2820 states and 8558 transitions. [2022-11-18 21:01:39,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:39,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:39,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:39,337 INFO L225 Difference]: With dead ends: 2820 [2022-11-18 21:01:39,337 INFO L226 Difference]: Without dead ends: 2697 [2022-11-18 21:01:39,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:39,338 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 86 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:39,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 47 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 86 Unchecked, 0.1s Time] [2022-11-18 21:01:39,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2022-11-18 21:01:39,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 1806. [2022-11-18 21:01:39,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1806 states, 1804 states have (on average 3.0681818181818183) internal successors, (5535), 1805 states have internal predecessors, (5535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:39,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 5535 transitions. [2022-11-18 21:01:39,376 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 5535 transitions. Word has length 29 [2022-11-18 21:01:39,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:39,376 INFO L495 AbstractCegarLoop]: Abstraction has 1806 states and 5535 transitions. [2022-11-18 21:01:39,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:39,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 5535 transitions. [2022-11-18 21:01:39,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:39,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:39,380 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, 1, 1] [2022-11-18 21:01:39,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (44)] Forceful destruction successful, exit code 0 [2022-11-18 21:01:39,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:39,581 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:39,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:39,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1135919487, now seen corresponding path program 37 times [2022-11-18 21:01:39,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:39,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000299203] [2022-11-18 21:01:39,583 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 21:01:39,583 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 [2022-11-18 21:01:39,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:39,590 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:39,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (45)] Waiting until timeout for monitored process [2022-11-18 21:01:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:39,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:39,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:40,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:40,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:40,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:40,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000299203] [2022-11-18 21:01:40,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000299203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:40,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:40,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:40,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300824414] [2022-11-18 21:01:40,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:40,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:40,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:40,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:40,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:40,444 INFO L87 Difference]: Start difference. First operand 1806 states and 5535 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:40,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:40,539 INFO L93 Difference]: Finished difference Result 2453 states and 7506 transitions. [2022-11-18 21:01:40,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:40,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:40,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:40,544 INFO L225 Difference]: With dead ends: 2453 [2022-11-18 21:01:40,544 INFO L226 Difference]: Without dead ends: 2334 [2022-11-18 21:01:40,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:40,545 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:40,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 47 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 60 Unchecked, 0.1s Time] [2022-11-18 21:01:40,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2334 states. [2022-11-18 21:01:40,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2334 to 1794. [2022-11-18 21:01:40,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1792 states have (on average 3.0714285714285716) internal successors, (5504), 1793 states have internal predecessors, (5504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:40,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 5504 transitions. [2022-11-18 21:01:40,581 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 5504 transitions. Word has length 29 [2022-11-18 21:01:40,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:40,582 INFO L495 AbstractCegarLoop]: Abstraction has 1794 states and 5504 transitions. [2022-11-18 21:01:40,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:40,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 5504 transitions. [2022-11-18 21:01:40,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:40,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:40,585 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, 1, 1] [2022-11-18 21:01:40,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (45)] Forceful destruction successful, exit code 0 [2022-11-18 21:01:40,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:40,791 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:40,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:40,791 INFO L85 PathProgramCache]: Analyzing trace with hash -100738191, now seen corresponding path program 38 times [2022-11-18 21:01:40,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:40,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001359780] [2022-11-18 21:01:40,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:01:40,792 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 [2022-11-18 21:01:40,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:40,793 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:40,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (46)] Waiting until timeout for monitored process [2022-11-18 21:01:41,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:41,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:41,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:41,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:41,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:41,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:41,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:41,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001359780] [2022-11-18 21:01:41,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001359780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:41,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:41,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:41,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132187547] [2022-11-18 21:01:41,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:41,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:41,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:41,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:41,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:41,699 INFO L87 Difference]: Start difference. First operand 1794 states and 5504 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:41,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:41,811 INFO L93 Difference]: Finished difference Result 2447 states and 7485 transitions. [2022-11-18 21:01:41,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:41,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:41,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:41,818 INFO L225 Difference]: With dead ends: 2447 [2022-11-18 21:01:41,818 INFO L226 Difference]: Without dead ends: 2208 [2022-11-18 21:01:41,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:41,819 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:41,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 47 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 57 Unchecked, 0.1s Time] [2022-11-18 21:01:41,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2022-11-18 21:01:41,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 1776. [2022-11-18 21:01:41,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1774 states have (on average 3.073280721533258) internal successors, (5452), 1775 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:41,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 5452 transitions. [2022-11-18 21:01:41,864 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 5452 transitions. Word has length 29 [2022-11-18 21:01:41,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:41,864 INFO L495 AbstractCegarLoop]: Abstraction has 1776 states and 5452 transitions. [2022-11-18 21:01:41,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:41,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 5452 transitions. [2022-11-18 21:01:41,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:41,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:41,868 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, 1, 1] [2022-11-18 21:01:41,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (46)] Ended with exit code 0 [2022-11-18 21:01:42,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:42,081 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:42,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:42,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1983162255, now seen corresponding path program 39 times [2022-11-18 21:01:42,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:42,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348277197] [2022-11-18 21:01:42,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 21:01:42,082 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 [2022-11-18 21:01:42,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:42,083 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:42,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (47)] Waiting until timeout for monitored process [2022-11-18 21:01:42,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 21:01:42,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:42,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:42,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:43,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:43,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:43,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348277197] [2022-11-18 21:01:43,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348277197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:43,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:43,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:43,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715546651] [2022-11-18 21:01:43,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:43,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:43,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:43,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:43,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:43,057 INFO L87 Difference]: Start difference. First operand 1776 states and 5452 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:43,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:43,157 INFO L93 Difference]: Finished difference Result 2641 states and 8144 transitions. [2022-11-18 21:01:43,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:43,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:43,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:43,162 INFO L225 Difference]: With dead ends: 2641 [2022-11-18 21:01:43,162 INFO L226 Difference]: Without dead ends: 2074 [2022-11-18 21:01:43,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:43,163 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:43,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 47 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 60 Unchecked, 0.1s Time] [2022-11-18 21:01:43,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2022-11-18 21:01:43,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 1780. [2022-11-18 21:01:43,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1780 states, 1778 states have (on average 3.067491563554556) internal successors, (5454), 1779 states have internal predecessors, (5454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:43,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1780 states to 1780 states and 5454 transitions. [2022-11-18 21:01:43,198 INFO L78 Accepts]: Start accepts. Automaton has 1780 states and 5454 transitions. Word has length 29 [2022-11-18 21:01:43,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:43,199 INFO L495 AbstractCegarLoop]: Abstraction has 1780 states and 5454 transitions. [2022-11-18 21:01:43,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:43,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1780 states and 5454 transitions. [2022-11-18 21:01:43,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:43,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:43,202 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, 1, 1] [2022-11-18 21:01:43,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (47)] Ended with exit code 0 [2022-11-18 21:01:43,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:43,402 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:43,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:43,403 INFO L85 PathProgramCache]: Analyzing trace with hash 819004097, now seen corresponding path program 40 times [2022-11-18 21:01:43,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:43,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709370028] [2022-11-18 21:01:43,404 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 21:01:43,404 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 [2022-11-18 21:01:43,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:43,405 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:43,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (48)] Waiting until timeout for monitored process [2022-11-18 21:01:43,670 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 21:01:43,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:43,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 21:01:43,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:44,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:44,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:44,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:44,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709370028] [2022-11-18 21:01:44,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709370028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:44,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:44,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:44,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611391341] [2022-11-18 21:01:44,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:44,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:01:44,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:44,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:01:44,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:44,337 INFO L87 Difference]: Start difference. First operand 1780 states and 5454 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:44,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:44,439 INFO L93 Difference]: Finished difference Result 3046 states and 9312 transitions. [2022-11-18 21:01:44,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:44,440 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:44,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:44,445 INFO L225 Difference]: With dead ends: 3046 [2022-11-18 21:01:44,445 INFO L226 Difference]: Without dead ends: 2323 [2022-11-18 21:01:44,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:44,446 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:44,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 47 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 81 Unchecked, 0.1s Time] [2022-11-18 21:01:44,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2022-11-18 21:01:44,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 1742. [2022-11-18 21:01:44,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 1740 states have (on average 3.0689655172413794) internal successors, (5340), 1741 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:44,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 5340 transitions. [2022-11-18 21:01:44,483 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 5340 transitions. Word has length 29 [2022-11-18 21:01:44,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:44,484 INFO L495 AbstractCegarLoop]: Abstraction has 1742 states and 5340 transitions. [2022-11-18 21:01:44,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:44,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 5340 transitions. [2022-11-18 21:01:44,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:44,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:44,487 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, 1, 1] [2022-11-18 21:01:44,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (48)] Ended with exit code 0 [2022-11-18 21:01:44,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:44,687 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:44,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:44,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1326343878, now seen corresponding path program 2 times [2022-11-18 21:01:44,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:44,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133789003] [2022-11-18 21:01:44,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:01:44,688 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 [2022-11-18 21:01:44,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:44,689 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:44,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (49)] Waiting until timeout for monitored process [2022-11-18 21:01:44,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:44,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:44,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 21:01:44,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:45,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:45,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:45,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:45,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133789003] [2022-11-18 21:01:45,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133789003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:45,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:45,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:45,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106624392] [2022-11-18 21:01:45,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:45,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:01:45,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:45,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:01:45,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:01:45,195 INFO L87 Difference]: Start difference. First operand 1742 states and 5340 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:45,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:45,469 INFO L93 Difference]: Finished difference Result 2596 states and 7836 transitions. [2022-11-18 21:01:45,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:01:45,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:45,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:45,475 INFO L225 Difference]: With dead ends: 2596 [2022-11-18 21:01:45,475 INFO L226 Difference]: Without dead ends: 2197 [2022-11-18 21:01:45,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:01:45,475 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 32 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:45,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 34 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:01:45,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2022-11-18 21:01:45,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 1634. [2022-11-18 21:01:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1632 states have (on average 3.049019607843137) internal successors, (4976), 1633 states have internal predecessors, (4976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:45,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 4976 transitions. [2022-11-18 21:01:45,510 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 4976 transitions. Word has length 29 [2022-11-18 21:01:45,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:45,511 INFO L495 AbstractCegarLoop]: Abstraction has 1634 states and 4976 transitions. [2022-11-18 21:01:45,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:45,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 4976 transitions. [2022-11-18 21:01:45,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:45,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:45,515 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, 1, 1] [2022-11-18 21:01:45,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (49)] Ended with exit code 0 [2022-11-18 21:01:45,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:45,729 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:45,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:45,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1911544166, now seen corresponding path program 3 times [2022-11-18 21:01:45,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:45,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789552374] [2022-11-18 21:01:45,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 21:01:45,730 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 [2022-11-18 21:01:45,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:45,731 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:45,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (50)] Waiting until timeout for monitored process [2022-11-18 21:01:45,911 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 21:01:45,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:45,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 21:01:45,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:46,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:46,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:46,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:46,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789552374] [2022-11-18 21:01:46,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789552374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:46,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:46,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:01:46,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587935272] [2022-11-18 21:01:46,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:46,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:01:46,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:46,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:01:46,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:01:46,160 INFO L87 Difference]: Start difference. First operand 1634 states and 4976 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:46,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:46,422 INFO L93 Difference]: Finished difference Result 2310 states and 6943 transitions. [2022-11-18 21:01:46,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:01:46,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:46,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:46,428 INFO L225 Difference]: With dead ends: 2310 [2022-11-18 21:01:46,429 INFO L226 Difference]: Without dead ends: 2018 [2022-11-18 21:01:46,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:01:46,430 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 27 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:46,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 25 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:01:46,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2022-11-18 21:01:46,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 1399. [2022-11-18 21:01:46,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1399 states, 1397 states have (on average 3.047244094488189) internal successors, (4257), 1398 states have internal predecessors, (4257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:46,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 4257 transitions. [2022-11-18 21:01:46,473 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 4257 transitions. Word has length 29 [2022-11-18 21:01:46,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:46,474 INFO L495 AbstractCegarLoop]: Abstraction has 1399 states and 4257 transitions. [2022-11-18 21:01:46,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:46,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 4257 transitions. [2022-11-18 21:01:46,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:46,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:46,477 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, 1, 1] [2022-11-18 21:01:46,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (50)] Forceful destruction successful, exit code 0 [2022-11-18 21:01:46,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:46,692 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:46,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:46,692 INFO L85 PathProgramCache]: Analyzing trace with hash -146170244, now seen corresponding path program 4 times [2022-11-18 21:01:46,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:46,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161950471] [2022-11-18 21:01:46,693 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 21:01:46,693 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 [2022-11-18 21:01:46,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:46,694 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:46,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (51)] Waiting until timeout for monitored process [2022-11-18 21:01:46,875 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 21:01:46,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:46,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-18 21:01:46,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:47,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:47,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:47,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:47,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161950471] [2022-11-18 21:01:47,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161950471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:47,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:47,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 21:01:47,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623593074] [2022-11-18 21:01:47,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:47,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 21:01:47,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:47,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 21:01:47,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-18 21:01:47,556 INFO L87 Difference]: Start difference. First operand 1399 states and 4257 transitions. Second operand has 11 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:47,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:47,938 INFO L93 Difference]: Finished difference Result 1791 states and 5312 transitions. [2022-11-18 21:01:47,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:47,938 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:47,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:47,942 INFO L225 Difference]: With dead ends: 1791 [2022-11-18 21:01:47,942 INFO L226 Difference]: Without dead ends: 1708 [2022-11-18 21:01:47,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:01:47,942 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 74 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:47,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 50 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:01:47,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2022-11-18 21:01:47,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1311. [2022-11-18 21:01:47,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 1309 states have (on average 3.0443086325439266) internal successors, (3985), 1310 states have internal predecessors, (3985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:47,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 3985 transitions. [2022-11-18 21:01:47,966 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 3985 transitions. Word has length 29 [2022-11-18 21:01:47,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:47,967 INFO L495 AbstractCegarLoop]: Abstraction has 1311 states and 3985 transitions. [2022-11-18 21:01:47,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:47,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 3985 transitions. [2022-11-18 21:01:47,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:47,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:47,969 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, 1, 1] [2022-11-18 21:01:47,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (51)] Ended with exit code 0 [2022-11-18 21:01:48,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:48,169 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:48,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:48,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1629777320, now seen corresponding path program 5 times [2022-11-18 21:01:48,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:48,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659036791] [2022-11-18 21:01:48,170 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 21:01:48,170 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 [2022-11-18 21:01:48,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:48,171 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:48,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (52)] Waiting until timeout for monitored process [2022-11-18 21:01:48,354 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:01:48,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:48,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 21:01:48,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:49,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:49,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:01:49,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:49,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659036791] [2022-11-18 21:01:49,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659036791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:49,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:49,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 21:01:49,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660521887] [2022-11-18 21:01:49,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:49,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 21:01:49,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:49,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 21:01:49,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 21:01:49,293 INFO L87 Difference]: Start difference. First operand 1311 states and 3985 transitions. Second operand has 11 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:49,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:49,701 INFO L93 Difference]: Finished difference Result 1651 states and 4885 transitions. [2022-11-18 21:01:49,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:01:49,702 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 21:01:49,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:49,705 INFO L225 Difference]: With dead ends: 1651 [2022-11-18 21:01:49,706 INFO L226 Difference]: Without dead ends: 1556 [2022-11-18 21:01:49,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-11-18 21:01:49,706 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 101 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:49,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 50 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 21:01:49,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2022-11-18 21:01:49,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1245. [2022-11-18 21:01:49,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1243 states have (on average 3.0563153660498794) internal successors, (3799), 1244 states have internal predecessors, (3799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:49,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 3799 transitions. [2022-11-18 21:01:49,730 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 3799 transitions. Word has length 29 [2022-11-18 21:01:49,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:49,730 INFO L495 AbstractCegarLoop]: Abstraction has 1245 states and 3799 transitions. [2022-11-18 21:01:49,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:49,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 3799 transitions. [2022-11-18 21:01:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:01:49,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:49,732 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, 1, 1] [2022-11-18 21:01:49,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (52)] Ended with exit code 0 [2022-11-18 21:01:49,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:49,935 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 21:01:49,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:49,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1703554946, now seen corresponding path program 6 times [2022-11-18 21:01:49,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:49,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869079137] [2022-11-18 21:01:49,936 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 21:01:49,936 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 [2022-11-18 21:01:49,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:49,937 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:01:49,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (53)] Waiting until timeout for monitored process [2022-11-18 21:01:50,155 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-18 21:01:50,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-18 21:01:50,155 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:01:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:01:50,341 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 21:01:50,341 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 21:01:50,343 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-18 21:01:50,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-18 21:01:50,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-18 21:01:50,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-18 21:01:50,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-18 21:01:50,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-18 21:01:50,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-18 21:01:50,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-18 21:01:50,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-18 21:01:50,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-18 21:01:50,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-18 21:01:50,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-18 21:01:50,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-18 21:01:50,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-18 21:01:50,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-18 21:01:50,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-18 21:01:50,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 (53)] Forceful destruction successful, exit code 0 [2022-11-18 21:01:50,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:01:50,564 INFO L444 BasicCegarLoop]: Path program histogram: [40, 6, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:50,571 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 21:01:50,571 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:01:50,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:01:50 BasicIcfg [2022-11-18 21:01:50,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:01:50,727 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:01:50,727 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:01:50,728 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:01:50,728 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:29" (3/4) ... [2022-11-18 21:01:50,731 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 21:01:50,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:01:50,732 INFO L158 Benchmark]: Toolchain (without parser) took 83711.44ms. Allocated memory was 56.6MB in the beginning and 746.6MB in the end (delta: 690.0MB). Free memory was 34.3MB in the beginning and 509.0MB in the end (delta: -474.7MB). Peak memory consumption was 214.3MB. Max. memory is 16.1GB. [2022-11-18 21:01:50,732 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 56.6MB. Free memory was 38.5MB in the beginning and 38.5MB in the end (delta: 42.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:01:50,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 893.85ms. Allocated memory is still 56.6MB. Free memory was 34.1MB in the beginning and 26.9MB in the end (delta: 7.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-11-18 21:01:50,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 139.11ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 26.9MB in the beginning and 52.9MB in the end (delta: -26.0MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-11-18 21:01:50,733 INFO L158 Benchmark]: Boogie Preprocessor took 88.59ms. Allocated memory is still 73.4MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:01:50,733 INFO L158 Benchmark]: RCFGBuilder took 1252.93ms. Allocated memory is still 73.4MB. Free memory was 50.5MB in the beginning and 39.6MB in the end (delta: 10.9MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2022-11-18 21:01:50,733 INFO L158 Benchmark]: TraceAbstraction took 81320.68ms. Allocated memory was 73.4MB in the beginning and 746.6MB in the end (delta: 673.2MB). Free memory was 38.9MB in the beginning and 509.0MB in the end (delta: -470.2MB). Peak memory consumption was 202.7MB. Max. memory is 16.1GB. [2022-11-18 21:01:50,734 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 746.6MB. Free memory is still 509.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:01:50,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 56.6MB. Free memory was 38.5MB in the beginning and 38.5MB in the end (delta: 42.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 893.85ms. Allocated memory is still 56.6MB. Free memory was 34.1MB in the beginning and 26.9MB in the end (delta: 7.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 139.11ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 26.9MB in the beginning and 52.9MB in the end (delta: -26.0MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.59ms. Allocated memory is still 73.4MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1252.93ms. Allocated memory is still 73.4MB. Free memory was 50.5MB in the beginning and 39.6MB in the end (delta: 10.9MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * TraceAbstraction took 81320.68ms. Allocated memory was 73.4MB in the beginning and 746.6MB in the end (delta: 673.2MB). Free memory was 38.9MB in the beginning and 509.0MB in the end (delta: -470.2MB). Peak memory consumption was 202.7MB. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 746.6MB. Free memory is still 509.0MB. 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: 14.7s, 162 PlacesBefore, 57 PlacesAfterwards, 151 TransitionsBefore, 45 TransitionsAfterwards, 3746 CoEnabledTransitionPairs, 7 FixpointIterations, 60 TrivialSequentialCompositions, 83 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 151 TotalNumberOfCompositions, 10748 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4740, independent: 4512, independent conditional: 0, independent unconditional: 4512, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2528, independent: 2456, independent conditional: 0, independent unconditional: 2456, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2528, independent: 2423, independent conditional: 0, independent unconditional: 2423, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 105, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 861, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 791, dependent conditional: 0, dependent unconditional: 791, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4740, independent: 2056, independent conditional: 0, independent unconditional: 2056, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 2528, unknown conditional: 0, unknown unconditional: 2528] , Statistics on independence cache: Total cache size (in pairs): 346, Positive cache size: 310, Positive conditional cache size: 0, Positive unconditional cache size: 310, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, 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: [L725] 0 _Bool x$flush_delayed; [L738] 0 int *x$read_delayed_var; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L726] 0 int x$mem_tmp; [L730] 0 _Bool x$r_buff0_thd3; [L731] 0 _Bool x$r_buff0_thd4; [L728] 0 _Bool x$r_buff0_thd1; [L712] 0 int __unbuffered_p1_EAX = 0; [L729] 0 _Bool x$r_buff0_thd2; [L718] 0 int __unbuffered_p3_EBX = 0; [L727] 0 _Bool x$r_buff0_thd0; [L720] 0 int a = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L737] 0 _Bool x$read_delayed; [L710] 0 int __unbuffered_cnt = 0; [L722] 0 _Bool main$tmp_guard1; [L742] 0 _Bool x$w_buff1_used; [L721] 0 _Bool main$tmp_guard0; [L716] 0 int __unbuffered_p3_EAX = 0; [L740] 0 _Bool x$w_buff0_used; [L739] 0 int x$w_buff0; [L741] 0 int x$w_buff1; [L724] 0 int x = 0; [L733] 0 _Bool x$r_buff1_thd1; [L732] 0 _Bool x$r_buff1_thd0; [L744] 0 int y = 0; [L746] 0 int z = 0; [L736] 0 _Bool x$r_buff1_thd4; [L735] 0 _Bool x$r_buff1_thd3; [L734] 0 _Bool x$r_buff1_thd2; [L853] 0 pthread_t t489; [L854] FCALL, FORK 0 pthread_create(&t489, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t489, ((void *)0), P0, ((void *)0))=0, t489={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L855] 0 pthread_t t490; [L856] FCALL, FORK 0 pthread_create(&t490, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t490, ((void *)0), P1, ((void *)0))=1, t489={11:0}, t490={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L772] 2 x$w_buff1 = x$w_buff0 [L773] 2 x$w_buff0 = 2 [L774] 2 x$w_buff1_used = x$w_buff0_used [L775] 2 x$w_buff0_used = (_Bool)1 [L776] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L776] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L777] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L778] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L779] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L780] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L781] 2 x$r_buff1_thd4 = x$r_buff0_thd4 [L782] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L857] 0 pthread_t t491; [L858] FCALL, FORK 0 pthread_create(&t491, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t491, ((void *)0), P2, ((void *)0))=2, t489={11:0}, t490={15:0}, t491={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L859] 0 pthread_t t492; [L860] FCALL, FORK 0 pthread_create(&t492, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t492, ((void *)0), P3, ((void *)0))=3, t489={11:0}, t490={15:0}, t491={7:0}, t492={-2147483637:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L785] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L802] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L805] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L808] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L809] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L810] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L811] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L812] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L815] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L817] 3 return 0; [L822] 4 z = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L825] 4 __unbuffered_p3_EAX = z VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L828] 4 __unbuffered_p3_EBX = a VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L752] 1 a = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L755] 1 x = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L788] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L789] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L790] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L791] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L792] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L795] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 2 return 0; [L758] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L759] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L760] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L761] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L762] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L765] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L767] 1 return 0; [L831] 4 x = x$w_buff0_used && x$r_buff0_thd4 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd4 ? x$w_buff1 : x) [L832] 4 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$w_buff0_used [L833] 4 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$w_buff1_used [L834] 4 x$r_buff0_thd4 = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$r_buff0_thd4 [L835] 4 x$r_buff1_thd4 = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L838] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L840] 4 return 0; [L862] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L864] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L864] RET 0 assume_abort_if_not(main$tmp_guard0) [L866] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L867] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L868] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L869] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L870] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t489={11:0}, t490={15:0}, t491={7:0}, t492={-2147483637:0}, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L873] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L874] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L875] 0 x$flush_delayed = weak$$choice2 [L876] 0 x$mem_tmp = x [L877] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L878] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L879] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L880] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L881] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L882] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L883] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L884] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L885] 0 x = x$flush_delayed ? x$mem_tmp : x [L886] 0 x$flush_delayed = (_Bool)0 [L888] CALL 0 __VERIFIER_assert(main$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_p1_EAX=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=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] - 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: 851]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 854]: 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: 860]: 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: 856]: 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: 858]: 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, 188 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 81.0s, OverallIterations: 52, TraceHistogramMax: 1, PathProgramHistogramMax: 40, EmptinessCheckTime: 0.3s, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1010 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1010 mSDsluCounter, 2228 SdHoareTripleChecker+Invalid, 6.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 2784 IncrementalHoareTripleChecker+Unchecked, 1674 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3440 IncrementalHoareTripleChecker+Invalid, 6303 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 554 mSDtfsCounter, 3440 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1343 GetRequests, 1136 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6444occurred in iteration=0, InterpolantAutomatonStates: 290, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.7s AutomataMinimizationTime, 51 MinimizatonAttempts, 26944 StatesRemovedByMinimization, 45 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 6.9s SatisfiabilityAnalysisTime, 28.7s InterpolantComputationTime, 1412 NumberOfCodeBlocks, 1412 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 1332 ConstructedInterpolants, 809 QuantifiedInterpolants, 49354 SizeOfPredicates, 27 NumberOfNonLiveVariables, 10134 ConjunctsInSsa, 781 ConjunctsInUnsatCore, 51 InterpolantComputations, 51 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 [2022-11-18 21:01:50,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6c8b40-0b21-41d8-9313-d063cb806e73/bin/uautomizer-TMbwUNV5ro/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