./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/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_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 --- 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 20:59:16,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:59:16,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:59:16,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:59:16,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:59:16,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:59:16,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:59:16,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:59:16,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:59:16,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:59:16,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:59:16,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:59:16,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:59:16,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:59:16,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:59:16,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:59:16,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:59:16,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:59:16,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:59:16,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:59:16,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:59:16,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:59:16,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:59:16,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:59:16,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:59:16,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:59:16,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:59:16,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:59:16,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:59:16,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:59:16,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:59:16,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:59:16,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:59:16,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:59:16,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:59:16,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:59:16,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:59:16,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:59:16,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:59:16,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:59:16,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:59:16,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 20:59:16,685 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:59:16,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:59:16,686 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:59:16,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:59:16,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:59:16,687 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:59:16,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:59:16,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:59:16,688 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:59:16,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:59:16,689 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:59:16,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:59:16,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:59:16,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:59:16,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:59:16,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:59:16,690 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:59:16,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:59:16,690 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:59:16,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:59:16,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:59:16,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:59:16,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:59:16,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:59:16,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:59:16,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:59:16,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:59:16,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:59:16,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:59:16,694 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:59:16,694 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:59:16,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:59:16,695 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_ec5a7c31-543f-474c-b3cb-311d92707b3f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 [2022-11-18 20:59:16,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:59:16,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:59:17,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:59:17,002 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:59:17,003 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:59:17,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-18 20:59:17,080 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/data/8eb237b3c/04f140f4d13a4ec98d89f228165a542c/FLAG2ac6f18dd [2022-11-18 20:59:17,848 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:59:17,849 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-18 20:59:17,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/data/8eb237b3c/04f140f4d13a4ec98d89f228165a542c/FLAG2ac6f18dd [2022-11-18 20:59:17,914 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/data/8eb237b3c/04f140f4d13a4ec98d89f228165a542c [2022-11-18 20:59:17,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:59:17,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:59:17,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:59:17,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:59:17,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:59:17,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:59:17" (1/1) ... [2022-11-18 20:59:17,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4178b872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:17, skipping insertion in model container [2022-11-18 20:59:17,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:59:17" (1/1) ... [2022-11-18 20:59:17,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:59:18,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:59:19,623 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_ec5a7c31-543f-474c-b3cb-311d92707b3f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2022-11-18 20:59:19,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:59:19,772 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:59:20,140 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_ec5a7c31-543f-474c-b3cb-311d92707b3f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2022-11-18 20:59:20,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:59:20,218 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:59:20,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:20 WrapperNode [2022-11-18 20:59:20,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:59:20,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:59:20,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:59:20,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:59:20,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:20" (1/1) ... [2022-11-18 20:59:20,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:20" (1/1) ... [2022-11-18 20:59:20,377 INFO L138 Inliner]: procedures = 188, calls = 583, calls flagged for inlining = 72, calls inlined = 47, statements flattened = 1210 [2022-11-18 20:59:20,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:59:20,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:59:20,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:59:20,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:59:20,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:20" (1/1) ... [2022-11-18 20:59:20,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:20" (1/1) ... [2022-11-18 20:59:20,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:20" (1/1) ... [2022-11-18 20:59:20,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:20" (1/1) ... [2022-11-18 20:59:20,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:20" (1/1) ... [2022-11-18 20:59:20,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:20" (1/1) ... [2022-11-18 20:59:20,545 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:20" (1/1) ... [2022-11-18 20:59:20,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:20" (1/1) ... [2022-11-18 20:59:20,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:59:20,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:59:20,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:59:20,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:59:20,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:20" (1/1) ... [2022-11-18 20:59:20,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:59:20,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:20,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:59:20,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:59:20,672 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 20:59:20,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 20:59:20,673 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2022-11-18 20:59:20,673 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2022-11-18 20:59:20,673 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2022-11-18 20:59:20,673 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2022-11-18 20:59:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:59:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2022-11-18 20:59:20,675 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2022-11-18 20:59:20,676 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2022-11-18 20:59:20,676 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2022-11-18 20:59:20,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 20:59:20,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 20:59:20,677 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-18 20:59:20,677 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-18 20:59:20,677 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2022-11-18 20:59:20,677 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2022-11-18 20:59:20,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:59:20,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 20:59:20,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 20:59:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 20:59:20,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 20:59:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2022-11-18 20:59:20,678 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2022-11-18 20:59:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2022-11-18 20:59:20,679 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2022-11-18 20:59:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:59:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2022-11-18 20:59:20,679 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2022-11-18 20:59:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 20:59:20,679 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 20:59:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:59:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2022-11-18 20:59:20,680 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2022-11-18 20:59:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:59:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:59:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2022-11-18 20:59:20,681 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2022-11-18 20:59:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-11-18 20:59:20,681 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-11-18 20:59:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-18 20:59:20,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-18 20:59:20,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:59:20,682 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 20:59:20,682 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 20:59:20,682 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-18 20:59:20,682 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-18 20:59:20,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:59:20,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:59:20,683 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2022-11-18 20:59:20,683 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2022-11-18 20:59:20,684 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2022-11-18 20:59:20,684 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2022-11-18 20:59:20,684 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2022-11-18 20:59:20,685 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2022-11-18 20:59:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-18 20:59:20,686 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-18 20:59:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2022-11-18 20:59:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2022-11-18 20:59:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2022-11-18 20:59:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2022-11-18 20:59:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-18 20:59:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-18 20:59:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2022-11-18 20:59:20,689 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2022-11-18 20:59:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2022-11-18 20:59:20,689 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2022-11-18 20:59:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:59:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-18 20:59:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-18 20:59:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:59:20,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:59:21,163 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:59:21,166 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:59:22,309 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:59:22,324 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:59:22,328 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:59:22,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:59:22 BoogieIcfgContainer [2022-11-18 20:59:22,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:59:22,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:59:22,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:59:22,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:59:22,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:59:17" (1/3) ... [2022-11-18 20:59:22,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e237a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:59:22, skipping insertion in model container [2022-11-18 20:59:22,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:59:20" (2/3) ... [2022-11-18 20:59:22,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e237a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:59:22, skipping insertion in model container [2022-11-18 20:59:22,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:59:22" (3/3) ... [2022-11-18 20:59:22,344 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-18 20:59:22,368 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:59:22,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-18 20:59:22,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:59:22,516 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4665cd67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:59:22,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-18 20:59:22,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 395 states, 286 states have (on average 1.3391608391608392) internal successors, (383), 303 states have internal predecessors, (383), 68 states have call successors, (68), 30 states have call predecessors, (68), 30 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-11-18 20:59:22,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 20:59:22,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:22,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:22,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:22,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:22,552 INFO L85 PathProgramCache]: Analyzing trace with hash 598862058, now seen corresponding path program 1 times [2022-11-18 20:59:22,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:22,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006163470] [2022-11-18 20:59:22,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:22,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:23,019 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 20:59:23,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:23,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006163470] [2022-11-18 20:59:23,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006163470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:23,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:23,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:59:23,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417599600] [2022-11-18 20:59:23,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:23,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:23,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:23,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:23,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:23,069 INFO L87 Difference]: Start difference. First operand has 395 states, 286 states have (on average 1.3391608391608392) internal successors, (383), 303 states have internal predecessors, (383), 68 states have call successors, (68), 30 states have call predecessors, (68), 30 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 20:59:23,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:23,290 INFO L93 Difference]: Finished difference Result 883 states and 1174 transitions. [2022-11-18 20:59:23,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:23,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 20:59:23,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:23,308 INFO L225 Difference]: With dead ends: 883 [2022-11-18 20:59:23,308 INFO L226 Difference]: Without dead ends: 459 [2022-11-18 20:59:23,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:23,320 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 125 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:23,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 995 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:59:23,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-11-18 20:59:23,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 454. [2022-11-18 20:59:23,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 333 states have (on average 1.3423423423423424) internal successors, (447), 349 states have internal predecessors, (447), 75 states have call successors, (75), 36 states have call predecessors, (75), 36 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-18 20:59:23,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 595 transitions. [2022-11-18 20:59:23,414 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 595 transitions. Word has length 15 [2022-11-18 20:59:23,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:23,415 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 595 transitions. [2022-11-18 20:59:23,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 20:59:23,415 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 595 transitions. [2022-11-18 20:59:23,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 20:59:23,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:23,417 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 20:59:23,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:59:23,418 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:23,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:23,419 INFO L85 PathProgramCache]: Analyzing trace with hash -634530066, now seen corresponding path program 1 times [2022-11-18 20:59:23,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:23,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477079377] [2022-11-18 20:59:23,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:23,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:23,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:59:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:23,620 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 20:59:23,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:23,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477079377] [2022-11-18 20:59:23,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477079377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:23,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:23,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:59:23,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712648420] [2022-11-18 20:59:23,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:23,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:23,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:23,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:23,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:23,625 INFO L87 Difference]: Start difference. First operand 454 states and 595 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:59:23,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:23,729 INFO L93 Difference]: Finished difference Result 1252 states and 1642 transitions. [2022-11-18 20:59:23,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:23,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-18 20:59:23,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:23,736 INFO L225 Difference]: With dead ends: 1252 [2022-11-18 20:59:23,737 INFO L226 Difference]: Without dead ends: 801 [2022-11-18 20:59:23,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 20:59:23,741 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 472 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:23,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 1124 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:59:23,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2022-11-18 20:59:23,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 778. [2022-11-18 20:59:23,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 582 states have (on average 1.338487972508591) internal successors, (779), 599 states have internal predecessors, (779), 124 states have call successors, (124), 62 states have call predecessors, (124), 62 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2022-11-18 20:59:23,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1026 transitions. [2022-11-18 20:59:23,837 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1026 transitions. Word has length 20 [2022-11-18 20:59:23,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:23,837 INFO L495 AbstractCegarLoop]: Abstraction has 778 states and 1026 transitions. [2022-11-18 20:59:23,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:59:23,838 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1026 transitions. [2022-11-18 20:59:23,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-18 20:59:23,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:23,839 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:23,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:59:23,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:23,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:23,841 INFO L85 PathProgramCache]: Analyzing trace with hash -869900585, now seen corresponding path program 1 times [2022-11-18 20:59:23,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:23,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677684383] [2022-11-18 20:59:23,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:23,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:23,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:24,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:59:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:24,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 20:59:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:24,026 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 20:59:24,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:24,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677684383] [2022-11-18 20:59:24,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677684383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:24,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:24,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:59:24,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547060484] [2022-11-18 20:59:24,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:24,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:59:24,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:24,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:59:24,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:59:24,029 INFO L87 Difference]: Start difference. First operand 778 states and 1026 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:59:24,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:24,873 INFO L93 Difference]: Finished difference Result 1823 states and 2470 transitions. [2022-11-18 20:59:24,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:59:24,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-11-18 20:59:24,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:24,885 INFO L225 Difference]: With dead ends: 1823 [2022-11-18 20:59:24,886 INFO L226 Difference]: Without dead ends: 1048 [2022-11-18 20:59:24,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 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 20:59:24,893 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 254 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:24,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 878 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 20:59:24,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2022-11-18 20:59:24,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 790. [2022-11-18 20:59:24,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 594 states have (on average 1.335016835016835) internal successors, (793), 611 states have internal predecessors, (793), 124 states have call successors, (124), 62 states have call predecessors, (124), 62 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2022-11-18 20:59:24,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1040 transitions. [2022-11-18 20:59:24,998 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1040 transitions. Word has length 36 [2022-11-18 20:59:24,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:24,998 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 1040 transitions. [2022-11-18 20:59:24,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:59:24,999 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1040 transitions. [2022-11-18 20:59:25,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 20:59:25,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:25,000 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 20:59:25,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:59:25,001 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:25,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:25,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1666895114, now seen corresponding path program 1 times [2022-11-18 20:59:25,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:25,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147029940] [2022-11-18 20:59:25,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:25,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:25,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:25,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 20:59:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:25,248 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:25,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:25,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147029940] [2022-11-18 20:59:25,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147029940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:25,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:25,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:59:25,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762481650] [2022-11-18 20:59:25,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:25,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:59:25,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:25,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:59:25,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:59:25,256 INFO L87 Difference]: Start difference. First operand 790 states and 1040 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:59:26,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:26,124 INFO L93 Difference]: Finished difference Result 1837 states and 2476 transitions. [2022-11-18 20:59:26,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:59:26,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-11-18 20:59:26,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:26,133 INFO L225 Difference]: With dead ends: 1837 [2022-11-18 20:59:26,133 INFO L226 Difference]: Without dead ends: 1044 [2022-11-18 20:59:26,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:26,142 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 254 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:26,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1199 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 20:59:26,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-11-18 20:59:26,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 790. [2022-11-18 20:59:26,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 594 states have (on average 1.3316498316498318) internal successors, (791), 611 states have internal predecessors, (791), 124 states have call successors, (124), 62 states have call predecessors, (124), 62 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2022-11-18 20:59:26,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1038 transitions. [2022-11-18 20:59:26,217 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1038 transitions. Word has length 38 [2022-11-18 20:59:26,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:26,218 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 1038 transitions. [2022-11-18 20:59:26,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:59:26,218 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1038 transitions. [2022-11-18 20:59:26,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-18 20:59:26,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:26,226 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:26,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:59:26,226 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:26,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:26,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1199137151, now seen corresponding path program 1 times [2022-11-18 20:59:26,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:26,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076744248] [2022-11-18 20:59:26,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:26,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:26,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:26,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:59:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:26,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 20:59:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:26,486 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:26,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:26,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076744248] [2022-11-18 20:59:26,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076744248] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:26,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951820916] [2022-11-18 20:59:26,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:26,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:26,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:26,494 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:26,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:59:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:26,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:59:26,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:26,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:59:27,010 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:27,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951820916] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:59:27,010 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:59:27,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-11-18 20:59:27,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928903681] [2022-11-18 20:59:27,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:59:27,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:59:27,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:27,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:59:27,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:59:27,012 INFO L87 Difference]: Start difference. First operand 790 states and 1038 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:59:27,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:27,839 INFO L93 Difference]: Finished difference Result 1078 states and 1481 transitions. [2022-11-18 20:59:27,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:59:27,840 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-11-18 20:59:27,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:27,847 INFO L225 Difference]: With dead ends: 1078 [2022-11-18 20:59:27,847 INFO L226 Difference]: Without dead ends: 1077 [2022-11-18 20:59:27,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:59:27,849 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 282 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:27,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 1174 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 20:59:27,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2022-11-18 20:59:27,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 789. [2022-11-18 20:59:27,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 594 states have (on average 1.3282828282828283) internal successors, (789), 610 states have internal predecessors, (789), 124 states have call successors, (124), 62 states have call predecessors, (124), 62 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2022-11-18 20:59:27,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1036 transitions. [2022-11-18 20:59:27,912 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1036 transitions. Word has length 42 [2022-11-18 20:59:27,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:27,913 INFO L495 AbstractCegarLoop]: Abstraction has 789 states and 1036 transitions. [2022-11-18 20:59:27,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:59:27,913 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1036 transitions. [2022-11-18 20:59:27,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-18 20:59:27,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:27,914 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:27,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:59:28,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:28,121 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:28,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:28,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1481453588, now seen corresponding path program 1 times [2022-11-18 20:59:28,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:28,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019071927] [2022-11-18 20:59:28,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:28,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:28,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:28,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:59:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:28,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 20:59:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:28,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:28,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019071927] [2022-11-18 20:59:28,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019071927] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:28,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131871330] [2022-11-18 20:59:28,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:28,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:28,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:28,410 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:28,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:59:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:28,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:59:28,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:28,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:28,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:59:28,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131871330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:28,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:59:28,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-18 20:59:28,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20227990] [2022-11-18 20:59:28,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:28,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:59:28,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:28,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:59:28,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:28,786 INFO L87 Difference]: Start difference. First operand 789 states and 1036 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:59:28,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:28,851 INFO L93 Difference]: Finished difference Result 793 states and 1042 transitions. [2022-11-18 20:59:28,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:59:28,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2022-11-18 20:59:28,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:28,856 INFO L225 Difference]: With dead ends: 793 [2022-11-18 20:59:28,856 INFO L226 Difference]: Without dead ends: 792 [2022-11-18 20:59:28,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:28,858 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 6 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:28,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1446 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:59:28,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2022-11-18 20:59:28,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 778. [2022-11-18 20:59:28,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 584 states have (on average 1.327054794520548) internal successors, (775), 599 states have internal predecessors, (775), 124 states have call successors, (124), 62 states have call predecessors, (124), 62 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2022-11-18 20:59:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1022 transitions. [2022-11-18 20:59:28,913 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1022 transitions. Word has length 43 [2022-11-18 20:59:28,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:28,913 INFO L495 AbstractCegarLoop]: Abstraction has 778 states and 1022 transitions. [2022-11-18 20:59:28,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:59:28,914 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1022 transitions. [2022-11-18 20:59:28,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 20:59:28,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:28,915 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:28,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 20:59:29,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:29,122 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:29,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:29,122 INFO L85 PathProgramCache]: Analyzing trace with hash -658639422, now seen corresponding path program 1 times [2022-11-18 20:59:29,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:29,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692800461] [2022-11-18 20:59:29,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:29,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:29,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:29,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:59:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:29,335 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:59:29,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:29,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692800461] [2022-11-18 20:59:29,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692800461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:29,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:29,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:59:29,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805021909] [2022-11-18 20:59:29,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:29,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:59:29,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:29,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:59:29,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:59:29,339 INFO L87 Difference]: Start difference. First operand 778 states and 1022 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:59:30,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:30,086 INFO L93 Difference]: Finished difference Result 1822 states and 2460 transitions. [2022-11-18 20:59:30,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:59:30,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2022-11-18 20:59:30,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:30,092 INFO L225 Difference]: With dead ends: 1822 [2022-11-18 20:59:30,092 INFO L226 Difference]: Without dead ends: 1047 [2022-11-18 20:59:30,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:59:30,096 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 257 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:30,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 886 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:59:30,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-11-18 20:59:30,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 793. [2022-11-18 20:59:30,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 599 states have (on average 1.318864774624374) internal successors, (790), 614 states have internal predecessors, (790), 124 states have call successors, (124), 62 states have call predecessors, (124), 62 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2022-11-18 20:59:30,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1037 transitions. [2022-11-18 20:59:30,147 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1037 transitions. Word has length 44 [2022-11-18 20:59:30,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:30,148 INFO L495 AbstractCegarLoop]: Abstraction has 793 states and 1037 transitions. [2022-11-18 20:59:30,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:59:30,148 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1037 transitions. [2022-11-18 20:59:30,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-18 20:59:30,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:30,149 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:30,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:59:30,150 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:30,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:30,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1987838502, now seen corresponding path program 1 times [2022-11-18 20:59:30,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:30,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632925372] [2022-11-18 20:59:30,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:30,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:30,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:30,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:30,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:59:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:30,327 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:59:30,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:30,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632925372] [2022-11-18 20:59:30,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632925372] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:30,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649833965] [2022-11-18 20:59:30,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:30,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:30,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:30,330 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:30,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:59:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:30,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:59:30,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:30,698 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:59:30,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:59:30,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649833965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:30,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:59:30,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2022-11-18 20:59:30,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169609361] [2022-11-18 20:59:30,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:30,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:59:30,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:30,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:59:30,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:59:30,702 INFO L87 Difference]: Start difference. First operand 793 states and 1037 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:59:30,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:30,799 INFO L93 Difference]: Finished difference Result 1593 states and 2085 transitions. [2022-11-18 20:59:30,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:59:30,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 49 [2022-11-18 20:59:30,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:30,804 INFO L225 Difference]: With dead ends: 1593 [2022-11-18 20:59:30,805 INFO L226 Difference]: Without dead ends: 793 [2022-11-18 20:59:30,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:59:30,810 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 6 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:30,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1932 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:59:30,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2022-11-18 20:59:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 793. [2022-11-18 20:59:30,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 599 states have (on average 1.315525876460768) internal successors, (788), 612 states have internal predecessors, (788), 124 states have call successors, (124), 62 states have call predecessors, (124), 62 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2022-11-18 20:59:30,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1035 transitions. [2022-11-18 20:59:30,865 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1035 transitions. Word has length 49 [2022-11-18 20:59:30,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:30,866 INFO L495 AbstractCegarLoop]: Abstraction has 793 states and 1035 transitions. [2022-11-18 20:59:30,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:59:30,866 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1035 transitions. [2022-11-18 20:59:30,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-18 20:59:30,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:30,867 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:30,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:59:31,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:31,074 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:31,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:31,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1956796503, now seen corresponding path program 1 times [2022-11-18 20:59:31,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:31,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138167135] [2022-11-18 20:59:31,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:31,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:31,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:31,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:31,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:31,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:59:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:31,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:31,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-18 20:59:31,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:31,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138167135] [2022-11-18 20:59:31,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138167135] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:31,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772788374] [2022-11-18 20:59:31,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:31,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:31,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:31,359 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:31,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:59:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:31,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:59:31,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:59:31,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:59:31,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772788374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:31,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:59:31,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-18 20:59:31,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85305225] [2022-11-18 20:59:31,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:31,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:59:31,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:31,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:59:31,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:59:31,759 INFO L87 Difference]: Start difference. First operand 793 states and 1035 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 20:59:31,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:31,839 INFO L93 Difference]: Finished difference Result 1757 states and 2341 transitions. [2022-11-18 20:59:31,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:59:31,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2022-11-18 20:59:31,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:31,845 INFO L225 Difference]: With dead ends: 1757 [2022-11-18 20:59:31,845 INFO L226 Difference]: Without dead ends: 967 [2022-11-18 20:59:31,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:59:31,849 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 89 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 2220 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:31,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 2220 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:59:31,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2022-11-18 20:59:31,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 801. [2022-11-18 20:59:31,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 605 states have (on average 1.312396694214876) internal successors, (794), 618 states have internal predecessors, (794), 124 states have call successors, (124), 62 states have call predecessors, (124), 64 states have return successors, (127), 125 states have call predecessors, (127), 123 states have call successors, (127) [2022-11-18 20:59:31,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1045 transitions. [2022-11-18 20:59:31,935 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1045 transitions. Word has length 70 [2022-11-18 20:59:31,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:31,935 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1045 transitions. [2022-11-18 20:59:31,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 20:59:31,936 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1045 transitions. [2022-11-18 20:59:31,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-18 20:59:31,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:31,937 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:31,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-18 20:59:32,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 20:59:32,145 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:32,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:32,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1128630209, now seen corresponding path program 1 times [2022-11-18 20:59:32,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:32,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582162663] [2022-11-18 20:59:32,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:32,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:32,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:32,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:32,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:59:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:32,335 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:59:32,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:32,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582162663] [2022-11-18 20:59:32,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582162663] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:32,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072762356] [2022-11-18 20:59:32,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:32,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:32,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:32,338 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:32,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:59:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:32,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:59:32,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:32,762 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:59:32,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:59:32,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072762356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:32,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:59:32,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-11-18 20:59:32,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566881723] [2022-11-18 20:59:32,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:32,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:59:32,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:32,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:59:32,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:59:32,771 INFO L87 Difference]: Start difference. First operand 801 states and 1045 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:59:32,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:32,960 INFO L93 Difference]: Finished difference Result 1765 states and 2349 transitions. [2022-11-18 20:59:32,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:59:32,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 66 [2022-11-18 20:59:32,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:32,966 INFO L225 Difference]: With dead ends: 1765 [2022-11-18 20:59:32,967 INFO L226 Difference]: Without dead ends: 967 [2022-11-18 20:59:32,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:59:32,971 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 257 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 3233 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:32,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 3233 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:59:32,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2022-11-18 20:59:33,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 805. [2022-11-18 20:59:33,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 609 states have (on average 1.3103448275862069) internal successors, (798), 622 states have internal predecessors, (798), 124 states have call successors, (124), 62 states have call predecessors, (124), 64 states have return successors, (127), 125 states have call predecessors, (127), 123 states have call successors, (127) [2022-11-18 20:59:33,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1049 transitions. [2022-11-18 20:59:33,024 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1049 transitions. Word has length 66 [2022-11-18 20:59:33,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:33,024 INFO L495 AbstractCegarLoop]: Abstraction has 805 states and 1049 transitions. [2022-11-18 20:59:33,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:59:33,025 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1049 transitions. [2022-11-18 20:59:33,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-18 20:59:33,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:33,026 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:33,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:59:33,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:59:33,235 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:33,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:33,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1197641668, now seen corresponding path program 1 times [2022-11-18 20:59:33,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:33,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040050695] [2022-11-18 20:59:33,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:33,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:33,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:33,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:33,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:33,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:33,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:59:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:33,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:33,467 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:59:33,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:33,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040050695] [2022-11-18 20:59:33,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040050695] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:33,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162899508] [2022-11-18 20:59:33,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:33,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:33,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:33,469 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:33,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:59:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:33,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:59:33,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:33,859 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:59:33,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:59:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:59:33,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162899508] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:59:33,946 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:59:33,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-11-18 20:59:33,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330526168] [2022-11-18 20:59:33,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:59:33,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:59:33,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:33,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:59:33,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:59:33,948 INFO L87 Difference]: Start difference. First operand 805 states and 1049 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:35,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:35,267 INFO L93 Difference]: Finished difference Result 1105 states and 1508 transitions. [2022-11-18 20:59:35,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:59:35,268 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 74 [2022-11-18 20:59:35,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:35,274 INFO L225 Difference]: With dead ends: 1105 [2022-11-18 20:59:35,276 INFO L226 Difference]: Without dead ends: 1104 [2022-11-18 20:59:35,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:59:35,278 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 409 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:35,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1531 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 20:59:35,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-11-18 20:59:35,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 804. [2022-11-18 20:59:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 609 states have (on average 1.3054187192118227) internal successors, (795), 621 states have internal predecessors, (795), 124 states have call successors, (124), 62 states have call predecessors, (124), 64 states have return successors, (127), 125 states have call predecessors, (127), 123 states have call successors, (127) [2022-11-18 20:59:35,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1046 transitions. [2022-11-18 20:59:35,348 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1046 transitions. Word has length 74 [2022-11-18 20:59:35,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:35,349 INFO L495 AbstractCegarLoop]: Abstraction has 804 states and 1046 transitions. [2022-11-18 20:59:35,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:35,350 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1046 transitions. [2022-11-18 20:59:35,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-18 20:59:35,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:35,351 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:35,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:59:35,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:59:35,558 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:35,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:35,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1527813908, now seen corresponding path program 1 times [2022-11-18 20:59:35,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:35,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592268878] [2022-11-18 20:59:35,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:35,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:35,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:35,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:35,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:35,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:35,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:59:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:35,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:35,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:59:35,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:35,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592268878] [2022-11-18 20:59:35,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592268878] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:35,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233753484] [2022-11-18 20:59:35,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:35,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:35,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:35,796 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:35,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:59:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:36,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:59:36,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:36,201 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:59:36,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:59:36,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233753484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:36,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:59:36,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-18 20:59:36,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806249201] [2022-11-18 20:59:36,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:36,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:59:36,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:36,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:59:36,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:59:36,204 INFO L87 Difference]: Start difference. First operand 804 states and 1046 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:36,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:36,254 INFO L93 Difference]: Finished difference Result 804 states and 1046 transitions. [2022-11-18 20:59:36,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:59:36,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 75 [2022-11-18 20:59:36,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:36,259 INFO L225 Difference]: With dead ends: 804 [2022-11-18 20:59:36,259 INFO L226 Difference]: Without dead ends: 783 [2022-11-18 20:59:36,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:59:36,261 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 4 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:36,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 957 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:59:36,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2022-11-18 20:59:36,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 775. [2022-11-18 20:59:36,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 586 states have (on average 1.3071672354948805) internal successors, (766), 596 states have internal predecessors, (766), 121 states have call successors, (121), 60 states have call predecessors, (121), 62 states have return successors, (125), 123 states have call predecessors, (125), 121 states have call successors, (125) [2022-11-18 20:59:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1012 transitions. [2022-11-18 20:59:36,310 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1012 transitions. Word has length 75 [2022-11-18 20:59:36,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:36,311 INFO L495 AbstractCegarLoop]: Abstraction has 775 states and 1012 transitions. [2022-11-18 20:59:36,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:36,311 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1012 transitions. [2022-11-18 20:59:36,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-18 20:59:36,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:36,313 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:36,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-18 20:59:36,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:59:36,520 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:36,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:36,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1811459727, now seen corresponding path program 1 times [2022-11-18 20:59:36,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:36,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205016081] [2022-11-18 20:59:36,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:36,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:36,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:36,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:36,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:36,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:36,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:59:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:36,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:36,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:36,782 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:59:36,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:36,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205016081] [2022-11-18 20:59:36,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205016081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:36,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:36,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:59:36,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526924706] [2022-11-18 20:59:36,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:36,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:59:36,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:36,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:59:36,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:36,786 INFO L87 Difference]: Start difference. First operand 775 states and 1012 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:37,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:37,997 INFO L93 Difference]: Finished difference Result 1892 states and 2558 transitions. [2022-11-18 20:59:37,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:59:37,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 83 [2022-11-18 20:59:37,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:38,004 INFO L225 Difference]: With dead ends: 1892 [2022-11-18 20:59:38,005 INFO L226 Difference]: Without dead ends: 1120 [2022-11-18 20:59:38,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:59:38,011 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 917 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:38,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 1099 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 20:59:38,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2022-11-18 20:59:38,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 779. [2022-11-18 20:59:38,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 590 states have (on average 1.305084745762712) internal successors, (770), 600 states have internal predecessors, (770), 121 states have call successors, (121), 60 states have call predecessors, (121), 62 states have return successors, (125), 123 states have call predecessors, (125), 121 states have call successors, (125) [2022-11-18 20:59:38,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1016 transitions. [2022-11-18 20:59:38,078 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1016 transitions. Word has length 83 [2022-11-18 20:59:38,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:38,078 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1016 transitions. [2022-11-18 20:59:38,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:38,079 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1016 transitions. [2022-11-18 20:59:38,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-18 20:59:38,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:38,080 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:38,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:59:38,081 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:38,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:38,081 INFO L85 PathProgramCache]: Analyzing trace with hash -800342477, now seen corresponding path program 1 times [2022-11-18 20:59:38,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:38,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698133458] [2022-11-18 20:59:38,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:38,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:59:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:59:38,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:38,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698133458] [2022-11-18 20:59:38,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698133458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:38,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:38,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:59:38,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247104041] [2022-11-18 20:59:38,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:38,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:59:38,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:38,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:59:38,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:59:38,296 INFO L87 Difference]: Start difference. First operand 779 states and 1016 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:39,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:39,965 INFO L93 Difference]: Finished difference Result 2721 states and 3668 transitions. [2022-11-18 20:59:39,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:59:39,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 83 [2022-11-18 20:59:39,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:39,975 INFO L225 Difference]: With dead ends: 2721 [2022-11-18 20:59:39,976 INFO L226 Difference]: Without dead ends: 1945 [2022-11-18 20:59:39,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:59:39,979 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 1164 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:39,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 1054 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [515 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-18 20:59:39,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2022-11-18 20:59:40,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1404. [2022-11-18 20:59:40,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1063 states have (on average 1.288805268109125) internal successors, (1370), 1077 states have internal predecessors, (1370), 219 states have call successors, (219), 113 states have call predecessors, (219), 116 states have return successors, (225), 222 states have call predecessors, (225), 219 states have call successors, (225) [2022-11-18 20:59:40,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1814 transitions. [2022-11-18 20:59:40,088 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1814 transitions. Word has length 83 [2022-11-18 20:59:40,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:40,089 INFO L495 AbstractCegarLoop]: Abstraction has 1404 states and 1814 transitions. [2022-11-18 20:59:40,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:40,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1814 transitions. [2022-11-18 20:59:40,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-18 20:59:40,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:40,091 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:40,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:59:40,092 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:40,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:40,092 INFO L85 PathProgramCache]: Analyzing trace with hash 391182024, now seen corresponding path program 1 times [2022-11-18 20:59:40,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:40,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496935721] [2022-11-18 20:59:40,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:40,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:59:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:40,342 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 20:59:40,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:40,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496935721] [2022-11-18 20:59:40,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496935721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:40,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:40,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:59:40,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383976182] [2022-11-18 20:59:40,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:40,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:59:40,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:40,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:59:40,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:59:40,345 INFO L87 Difference]: Start difference. First operand 1404 states and 1814 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:41,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:41,447 INFO L93 Difference]: Finished difference Result 3379 states and 4525 transitions. [2022-11-18 20:59:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:59:41,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 88 [2022-11-18 20:59:41,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:41,468 INFO L225 Difference]: With dead ends: 3379 [2022-11-18 20:59:41,468 INFO L226 Difference]: Without dead ends: 1978 [2022-11-18 20:59:41,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:41,477 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 385 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:41,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 946 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-18 20:59:41,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2022-11-18 20:59:41,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1432. [2022-11-18 20:59:41,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1091 states have (on average 1.2850595783684693) internal successors, (1402), 1105 states have internal predecessors, (1402), 219 states have call successors, (219), 113 states have call predecessors, (219), 116 states have return successors, (225), 222 states have call predecessors, (225), 219 states have call successors, (225) [2022-11-18 20:59:41,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1846 transitions. [2022-11-18 20:59:41,599 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1846 transitions. Word has length 88 [2022-11-18 20:59:41,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:41,599 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 1846 transitions. [2022-11-18 20:59:41,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:41,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1846 transitions. [2022-11-18 20:59:41,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-18 20:59:41,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:41,601 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:41,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:59:41,602 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:41,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:41,602 INFO L85 PathProgramCache]: Analyzing trace with hash 129092606, now seen corresponding path program 1 times [2022-11-18 20:59:41,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:41,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373138826] [2022-11-18 20:59:41,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:41,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:59:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:59:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:41,842 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 20:59:41,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:41,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373138826] [2022-11-18 20:59:41,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373138826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:41,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:41,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:59:41,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910189280] [2022-11-18 20:59:41,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:41,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:59:41,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:41,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:59:41,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:41,846 INFO L87 Difference]: Start difference. First operand 1432 states and 1846 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 20:59:43,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:43,849 INFO L93 Difference]: Finished difference Result 3018 states and 4066 transitions. [2022-11-18 20:59:43,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:59:43,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 87 [2022-11-18 20:59:43,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:43,864 INFO L225 Difference]: With dead ends: 3018 [2022-11-18 20:59:43,865 INFO L226 Difference]: Without dead ends: 3016 [2022-11-18 20:59:43,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:59:43,867 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 1419 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 738 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 738 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:43,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1090 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [738 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-18 20:59:43,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2022-11-18 20:59:44,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 2196. [2022-11-18 20:59:44,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 1678 states have (on average 1.2771156138259834) internal successors, (2143), 1697 states have internal predecessors, (2143), 334 states have call successors, (334), 173 states have call predecessors, (334), 178 states have return successors, (344), 339 states have call predecessors, (344), 334 states have call successors, (344) [2022-11-18 20:59:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 2821 transitions. [2022-11-18 20:59:44,051 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 2821 transitions. Word has length 87 [2022-11-18 20:59:44,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:44,052 INFO L495 AbstractCegarLoop]: Abstraction has 2196 states and 2821 transitions. [2022-11-18 20:59:44,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 20:59:44,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 2821 transitions. [2022-11-18 20:59:44,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-18 20:59:44,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:44,054 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:44,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:59:44,055 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:44,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:44,055 INFO L85 PathProgramCache]: Analyzing trace with hash -957655021, now seen corresponding path program 1 times [2022-11-18 20:59:44,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:44,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78381737] [2022-11-18 20:59:44,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:44,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:44,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:44,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:44,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:44,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:44,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:59:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:44,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:44,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:44,344 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 20:59:44,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:44,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78381737] [2022-11-18 20:59:44,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78381737] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:44,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022521497] [2022-11-18 20:59:44,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:44,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:44,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:44,352 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:44,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:59:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:44,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:59:44,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:44,836 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-18 20:59:44,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:59:44,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022521497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:44,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:59:44,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-18 20:59:44,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614914923] [2022-11-18 20:59:44,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:44,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:59:44,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:44,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:59:44,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:59:44,839 INFO L87 Difference]: Start difference. First operand 2196 states and 2821 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:45,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:45,092 INFO L93 Difference]: Finished difference Result 4696 states and 6119 transitions. [2022-11-18 20:59:45,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:59:45,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 95 [2022-11-18 20:59:45,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:45,107 INFO L225 Difference]: With dead ends: 4696 [2022-11-18 20:59:45,107 INFO L226 Difference]: Without dead ends: 2602 [2022-11-18 20:59:45,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:59:45,114 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 88 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:45,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 2216 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:59:45,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2022-11-18 20:59:45,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2206. [2022-11-18 20:59:45,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 1688 states have (on average 1.275473933649289) internal successors, (2153), 1702 states have internal predecessors, (2153), 334 states have call successors, (334), 173 states have call predecessors, (334), 178 states have return successors, (344), 344 states have call predecessors, (344), 334 states have call successors, (344) [2022-11-18 20:59:45,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 2831 transitions. [2022-11-18 20:59:45,327 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 2831 transitions. Word has length 95 [2022-11-18 20:59:45,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:45,328 INFO L495 AbstractCegarLoop]: Abstraction has 2206 states and 2831 transitions. [2022-11-18 20:59:45,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:45,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 2831 transitions. [2022-11-18 20:59:45,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-18 20:59:45,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:45,330 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:45,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:59:45,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 20:59:45,549 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:45,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:45,549 INFO L85 PathProgramCache]: Analyzing trace with hash 2113083352, now seen corresponding path program 1 times [2022-11-18 20:59:45,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:45,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116143065] [2022-11-18 20:59:45,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:45,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:45,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:45,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:45,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:59:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:45,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:45,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:45,779 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:59:45,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:45,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116143065] [2022-11-18 20:59:45,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116143065] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:45,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263567384] [2022-11-18 20:59:45,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:45,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:45,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:45,782 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:45,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:59:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:46,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:59:46,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:46,217 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:59:46,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:59:46,298 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:59:46,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263567384] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:59:46,299 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:59:46,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-11-18 20:59:46,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021933293] [2022-11-18 20:59:46,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:59:46,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:59:46,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:46,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:59:46,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:59:46,301 INFO L87 Difference]: Start difference. First operand 2206 states and 2831 transitions. Second operand has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:47,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:47,635 INFO L93 Difference]: Finished difference Result 3122 states and 4224 transitions. [2022-11-18 20:59:47,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:59:47,636 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 99 [2022-11-18 20:59:47,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:47,650 INFO L225 Difference]: With dead ends: 3122 [2022-11-18 20:59:47,650 INFO L226 Difference]: Without dead ends: 3121 [2022-11-18 20:59:47,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:59:47,652 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 443 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:47,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1222 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 20:59:47,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2022-11-18 20:59:47,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 2205. [2022-11-18 20:59:47,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 1688 states have (on average 1.271919431279621) internal successors, (2147), 1701 states have internal predecessors, (2147), 334 states have call successors, (334), 173 states have call predecessors, (334), 178 states have return successors, (344), 344 states have call predecessors, (344), 334 states have call successors, (344) [2022-11-18 20:59:47,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 2825 transitions. [2022-11-18 20:59:47,851 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 2825 transitions. Word has length 99 [2022-11-18 20:59:47,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:47,852 INFO L495 AbstractCegarLoop]: Abstraction has 2205 states and 2825 transitions. [2022-11-18 20:59:47,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:47,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 2825 transitions. [2022-11-18 20:59:47,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-18 20:59:47,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:47,855 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:47,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:59:48,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 20:59:48,063 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:48,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:48,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1081074543, now seen corresponding path program 1 times [2022-11-18 20:59:48,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:48,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383254887] [2022-11-18 20:59:48,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:48,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:48,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:48,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:48,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:48,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:48,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:59:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:48,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:48,310 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:59:48,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:48,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383254887] [2022-11-18 20:59:48,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383254887] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:48,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006642478] [2022-11-18 20:59:48,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:48,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:48,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:48,312 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:48,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:59:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:48,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:59:48,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:59:48,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:59:48,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006642478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:48,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:59:48,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-18 20:59:48,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875813872] [2022-11-18 20:59:48,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:48,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:59:48,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:48,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:59:48,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:59:48,824 INFO L87 Difference]: Start difference. First operand 2205 states and 2825 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:48,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:48,987 INFO L93 Difference]: Finished difference Result 2217 states and 2843 transitions. [2022-11-18 20:59:48,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:59:48,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 100 [2022-11-18 20:59:48,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:49,036 INFO L225 Difference]: With dead ends: 2217 [2022-11-18 20:59:49,044 INFO L226 Difference]: Without dead ends: 2216 [2022-11-18 20:59:49,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:59:49,045 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 6 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:49,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1412 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:59:49,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2022-11-18 20:59:49,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2168. [2022-11-18 20:59:49,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2168 states, 1652 states have (on average 1.2705811138014529) internal successors, (2099), 1664 states have internal predecessors, (2099), 334 states have call successors, (334), 173 states have call predecessors, (334), 178 states have return successors, (344), 344 states have call predecessors, (344), 334 states have call successors, (344) [2022-11-18 20:59:49,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 2777 transitions. [2022-11-18 20:59:49,242 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 2777 transitions. Word has length 100 [2022-11-18 20:59:49,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:49,242 INFO L495 AbstractCegarLoop]: Abstraction has 2168 states and 2777 transitions. [2022-11-18 20:59:49,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-18 20:59:49,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 2777 transitions. [2022-11-18 20:59:49,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-18 20:59:49,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:49,247 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:49,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:59:49,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:49,455 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:49,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:49,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1953467343, now seen corresponding path program 1 times [2022-11-18 20:59:49,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:49,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593838915] [2022-11-18 20:59:49,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:49,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:49,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:49,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:49,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:49,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:49,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:59:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:49,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:49,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:49,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 20:59:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:49,731 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:59:49,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:49,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593838915] [2022-11-18 20:59:49,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593838915] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:49,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827177819] [2022-11-18 20:59:49,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:49,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:49,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:49,734 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:49,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 20:59:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:50,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:59:50,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:50,419 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:59:50,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:59:50,596 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:59:50,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827177819] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:59:50,596 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:59:50,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 9 [2022-11-18 20:59:50,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856321236] [2022-11-18 20:59:50,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:59:50,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:59:50,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:50,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:59:50,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:59:50,599 INFO L87 Difference]: Start difference. First operand 2168 states and 2777 transitions. Second operand has 10 states, 9 states have (on average 20.11111111111111) internal successors, (181), 7 states have internal predecessors, (181), 4 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-18 20:59:56,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:56,551 INFO L93 Difference]: Finished difference Result 7809 states and 10543 transitions. [2022-11-18 20:59:56,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 20:59:56,552 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 20.11111111111111) internal successors, (181), 7 states have internal predecessors, (181), 4 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 105 [2022-11-18 20:59:56,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:56,584 INFO L225 Difference]: With dead ends: 7809 [2022-11-18 20:59:56,584 INFO L226 Difference]: Without dead ends: 7807 [2022-11-18 20:59:56,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=411, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:59:56,588 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 4408 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 3074 mSolverCounterSat, 1894 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4635 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 4968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1894 IncrementalHoareTripleChecker+Valid, 3074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:56,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4635 Valid, 2116 Invalid, 4968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1894 Valid, 3074 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-18 20:59:56,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7807 states. [2022-11-18 20:59:56,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7807 to 4225. [2022-11-18 20:59:56,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4225 states, 3214 states have (on average 1.269446172993155) internal successors, (4080), 3235 states have internal predecessors, (4080), 660 states have call successors, (660), 339 states have call predecessors, (660), 348 states have return successors, (678), 678 states have call predecessors, (678), 660 states have call successors, (678) [2022-11-18 20:59:56,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4225 states to 4225 states and 5418 transitions. [2022-11-18 20:59:56,991 INFO L78 Accepts]: Start accepts. Automaton has 4225 states and 5418 transitions. Word has length 105 [2022-11-18 20:59:56,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:56,992 INFO L495 AbstractCegarLoop]: Abstraction has 4225 states and 5418 transitions. [2022-11-18 20:59:56,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 20.11111111111111) internal successors, (181), 7 states have internal predecessors, (181), 4 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-18 20:59:56,992 INFO L276 IsEmpty]: Start isEmpty. Operand 4225 states and 5418 transitions. [2022-11-18 20:59:56,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-18 20:59:56,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:56,995 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:57,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:59:57,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:57,206 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:57,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:57,206 INFO L85 PathProgramCache]: Analyzing trace with hash 427946155, now seen corresponding path program 1 times [2022-11-18 20:59:57,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:57,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172303652] [2022-11-18 20:59:57,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:57,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:57,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:57,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:57,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:57,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:57,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:59:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:57,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:57,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:57,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 20:59:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:57,547 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:59:57,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:57,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172303652] [2022-11-18 20:59:57,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172303652] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:57,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801172139] [2022-11-18 20:59:57,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:57,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:57,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:57,551 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:57,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 20:59:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:57,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:59:57,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:58,137 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:59:58,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:59:58,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801172139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:58,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:59:58,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-18 20:59:58,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865967827] [2022-11-18 20:59:58,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:58,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:59:58,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:58,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:59:58,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:59:58,140 INFO L87 Difference]: Start difference. First operand 4225 states and 5418 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-18 20:59:58,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:59:58,693 INFO L93 Difference]: Finished difference Result 4880 states and 6258 transitions. [2022-11-18 20:59:58,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:59:58,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 106 [2022-11-18 20:59:58,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:59:58,723 INFO L225 Difference]: With dead ends: 4880 [2022-11-18 20:59:58,723 INFO L226 Difference]: Without dead ends: 4878 [2022-11-18 20:59:58,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:59:58,727 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 836 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:59:58,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 1226 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:59:58,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4878 states. [2022-11-18 20:59:59,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4878 to 3568. [2022-11-18 20:59:59,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 2720 states have (on average 1.2691176470588235) internal successors, (3452), 2735 states have internal predecessors, (3452), 553 states have call successors, (553), 286 states have call predecessors, (553), 294 states have return successors, (569), 569 states have call predecessors, (569), 553 states have call successors, (569) [2022-11-18 20:59:59,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 4574 transitions. [2022-11-18 20:59:59,156 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 4574 transitions. Word has length 106 [2022-11-18 20:59:59,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:59:59,156 INFO L495 AbstractCegarLoop]: Abstraction has 3568 states and 4574 transitions. [2022-11-18 20:59:59,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-18 20:59:59,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 4574 transitions. [2022-11-18 20:59:59,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-18 20:59:59,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:59:59,163 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:59,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:59:59,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-18 20:59:59,370 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 20:59:59,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:59,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1443869007, now seen corresponding path program 1 times [2022-11-18 20:59:59,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:59,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495156551] [2022-11-18 20:59:59,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:59,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:59,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:59:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:59,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:59:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:59,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:59,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:59,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:59:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:59,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:59:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:59,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:59:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:59,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 20:59:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:59,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 20:59:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:59,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:59:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:59,587 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-18 20:59:59,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:59,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495156551] [2022-11-18 20:59:59,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495156551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:59,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:59,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:59:59,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557123353] [2022-11-18 20:59:59,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:59,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:59:59,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:59,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:59:59,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:59,589 INFO L87 Difference]: Start difference. First operand 3568 states and 4574 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 21:00:02,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:02,078 INFO L93 Difference]: Finished difference Result 8186 states and 10831 transitions. [2022-11-18 21:00:02,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 21:00:02,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 127 [2022-11-18 21:00:02,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:02,111 INFO L225 Difference]: With dead ends: 8186 [2022-11-18 21:00:02,111 INFO L226 Difference]: Without dead ends: 4722 [2022-11-18 21:00:02,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 21:00:02,124 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 747 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:02,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1875 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-18 21:00:02,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4722 states. [2022-11-18 21:00:02,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4722 to 3366. [2022-11-18 21:00:02,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 2550 states have (on average 1.2541176470588236) internal successors, (3198), 2567 states have internal predecessors, (3198), 537 states have call successors, (537), 272 states have call predecessors, (537), 278 states have return successors, (549), 549 states have call predecessors, (549), 537 states have call successors, (549) [2022-11-18 21:00:02,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 4284 transitions. [2022-11-18 21:00:02,445 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 4284 transitions. Word has length 127 [2022-11-18 21:00:02,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:02,446 INFO L495 AbstractCegarLoop]: Abstraction has 3366 states and 4284 transitions. [2022-11-18 21:00:02,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 21:00:02,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 4284 transitions. [2022-11-18 21:00:02,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-18 21:00:02,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:02,455 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:02,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 21:00:02,455 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 21:00:02,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:02,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1405530761, now seen corresponding path program 1 times [2022-11-18 21:00:02,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:02,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179962987] [2022-11-18 21:00:02,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:02,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 21:00:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 21:00:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:00:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:00:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 21:00:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:00:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:00:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 21:00:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 21:00:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 21:00:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:00:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:00:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-18 21:00:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:00:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:00:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-18 21:00:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-18 21:00:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-18 21:00:02,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:02,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179962987] [2022-11-18 21:00:02,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179962987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:02,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:02,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:00:02,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589672729] [2022-11-18 21:00:02,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:02,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:02,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:02,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:02,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:02,778 INFO L87 Difference]: Start difference. First operand 3366 states and 4284 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-18 21:00:05,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:05,119 INFO L93 Difference]: Finished difference Result 8084 states and 10624 transitions. [2022-11-18 21:00:05,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 21:00:05,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 213 [2022-11-18 21:00:05,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:05,133 INFO L225 Difference]: With dead ends: 8084 [2022-11-18 21:00:05,133 INFO L226 Difference]: Without dead ends: 3846 [2022-11-18 21:00:05,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 21:00:05,146 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 891 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:05,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 1393 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-18 21:00:05,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2022-11-18 21:00:05,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 2753. [2022-11-18 21:00:05,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2753 states, 2082 states have (on average 1.2444764649375601) internal successors, (2591), 2095 states have internal predecessors, (2591), 440 states have call successors, (440), 224 states have call predecessors, (440), 230 states have return successors, (452), 452 states have call predecessors, (452), 440 states have call successors, (452) [2022-11-18 21:00:05,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2753 states to 2753 states and 3483 transitions. [2022-11-18 21:00:05,538 INFO L78 Accepts]: Start accepts. Automaton has 2753 states and 3483 transitions. Word has length 213 [2022-11-18 21:00:05,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:05,539 INFO L495 AbstractCegarLoop]: Abstraction has 2753 states and 3483 transitions. [2022-11-18 21:00:05,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-18 21:00:05,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2753 states and 3483 transitions. [2022-11-18 21:00:05,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-18 21:00:05,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:05,546 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 21:00:05,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 21:00:05,546 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 21:00:05,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:05,547 INFO L85 PathProgramCache]: Analyzing trace with hash 962062705, now seen corresponding path program 1 times [2022-11-18 21:00:05,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:05,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667000195] [2022-11-18 21:00:05,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:05,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 21:00:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 21:00:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:00:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:00:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 21:00:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:00:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:00:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 21:00:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 21:00:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 21:00:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 21:00:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 21:00:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:00:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:00:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-18 21:00:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:00:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:00:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-18 21:00:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-18 21:00:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-11-18 21:00:05,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:05,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667000195] [2022-11-18 21:00:05,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667000195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:05,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:05,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 21:00:05,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065402566] [2022-11-18 21:00:05,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:05,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 21:00:05,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:05,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 21:00:05,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:00:05,944 INFO L87 Difference]: Start difference. First operand 2753 states and 3483 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 21:00:07,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:07,421 INFO L93 Difference]: Finished difference Result 6771 states and 8900 transitions. [2022-11-18 21:00:07,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 21:00:07,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 222 [2022-11-18 21:00:07,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:07,435 INFO L225 Difference]: With dead ends: 6771 [2022-11-18 21:00:07,435 INFO L226 Difference]: Without dead ends: 4102 [2022-11-18 21:00:07,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:00:07,445 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 699 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:07,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1594 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-18 21:00:07,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4102 states. [2022-11-18 21:00:07,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4102 to 2757. [2022-11-18 21:00:07,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2757 states, 2086 states have (on average 1.24352828379674) internal successors, (2594), 2099 states have internal predecessors, (2594), 440 states have call successors, (440), 224 states have call predecessors, (440), 230 states have return successors, (452), 452 states have call predecessors, (452), 440 states have call successors, (452) [2022-11-18 21:00:07,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 3486 transitions. [2022-11-18 21:00:07,815 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 3486 transitions. Word has length 222 [2022-11-18 21:00:07,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:07,816 INFO L495 AbstractCegarLoop]: Abstraction has 2757 states and 3486 transitions. [2022-11-18 21:00:07,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 21:00:07,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 3486 transitions. [2022-11-18 21:00:07,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-18 21:00:07,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:07,823 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 21:00:07,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 21:00:07,823 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 21:00:07,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:07,824 INFO L85 PathProgramCache]: Analyzing trace with hash -887454251, now seen corresponding path program 1 times [2022-11-18 21:00:07,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:07,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585900604] [2022-11-18 21:00:07,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:07,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:07,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 21:00:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 21:00:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:00:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:00:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 21:00:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:00:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:00:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 21:00:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 21:00:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 21:00:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 21:00:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 21:00:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-18 21:00:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 21:00:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:00:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:00:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-18 21:00:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:00:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:00:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-18 21:00:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-18 21:00:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:08,163 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-18 21:00:08,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:08,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585900604] [2022-11-18 21:00:08,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585900604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:08,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:08,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:00:08,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110832579] [2022-11-18 21:00:08,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:08,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:00:08,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:08,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:00:08,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:08,166 INFO L87 Difference]: Start difference. First operand 2757 states and 3486 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 21:00:08,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:08,314 INFO L93 Difference]: Finished difference Result 2873 states and 3618 transitions. [2022-11-18 21:00:08,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:00:08,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 243 [2022-11-18 21:00:08,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:08,316 INFO L225 Difference]: With dead ends: 2873 [2022-11-18 21:00:08,316 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 21:00:08,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:00:08,327 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 67 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:08,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 228 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:00:08,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 21:00:08,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 21:00:08,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:08,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 21:00:08,331 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 243 [2022-11-18 21:00:08,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:08,331 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 21:00:08,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 21:00:08,331 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 21:00:08,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 21:00:08,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-18 21:00:08,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-18 21:00:08,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-18 21:00:08,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-18 21:00:08,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-18 21:00:08,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-18 21:00:08,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-18 21:00:08,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-18 21:00:08,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-18 21:00:08,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-18 21:00:08,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 21:00:08,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 21:00:20,043 WARN L233 SmtUtils]: Spent 7.24s on a formula simplification. DAG size of input: 69 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 21:00:28,071 WARN L233 SmtUtils]: Spent 6.49s on a formula simplification. DAG size of input: 69 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 21:00:38,088 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 69 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 21:00:46,705 WARN L233 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 69 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 21:00:59,722 INFO L895 garLoopResultBuilder]: At program point tgt_ring_idx_incENTRY(lines 7281 7291) the Hoare annotation is: (let ((.cse0 (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))) (.cse1 (not (= ~ldv_retval_1~0 0))) (.cse2 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 .cse1 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse2 (not (<= ~ref_cnt~0 1))) (or .cse0 .cse1 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse2))) [2022-11-18 21:00:59,722 INFO L899 garLoopResultBuilder]: For program point L7284-2(lines 7281 7291) no Hoare annotation was computed. [2022-11-18 21:00:59,722 INFO L899 garLoopResultBuilder]: For program point L7284(lines 7284 7288) no Hoare annotation was computed. [2022-11-18 21:00:59,723 INFO L899 garLoopResultBuilder]: For program point tgt_ring_idx_incEXIT(lines 7281 7291) no Hoare annotation was computed. [2022-11-18 21:00:59,723 INFO L899 garLoopResultBuilder]: For program point __raw_spin_lock_initEXIT(lines 8215 8217) no Hoare annotation was computed. [2022-11-18 21:00:59,723 INFO L902 garLoopResultBuilder]: At program point __raw_spin_lock_initENTRY(lines 8215 8217) the Hoare annotation is: true [2022-11-18 21:00:59,723 INFO L899 garLoopResultBuilder]: For program point __raw_spin_lock_initFINAL(lines 8215 8217) no Hoare annotation was computed. [2022-11-18 21:00:59,723 INFO L895 garLoopResultBuilder]: At program point L7603(lines 7595 7609) the Hoare annotation is: (or (= |tgt_ring_exit_~i~3#1| 0) (and (<= 1 |tgt_ring_exit_~i~3#1|) (< |tgt_ring_exit_~i~3#1| 2147483646))) [2022-11-18 21:00:59,724 INFO L895 garLoopResultBuilder]: At program point L7605(lines 7593 7610) the Hoare annotation is: (and (<= |tgt_ring_exit_~i~3#1| 2147483646) (<= 1 |tgt_ring_exit_~i~3#1|)) [2022-11-18 21:00:59,724 INFO L899 garLoopResultBuilder]: For program point tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7600) no Hoare annotation was computed. [2022-11-18 21:00:59,724 INFO L899 garLoopResultBuilder]: For program point L7600-1(line 7600) no Hoare annotation was computed. [2022-11-18 21:00:59,724 INFO L899 garLoopResultBuilder]: For program point tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7600) no Hoare annotation was computed. [2022-11-18 21:00:59,724 INFO L899 garLoopResultBuilder]: For program point tgt_ring_exitEXIT(lines 7593 7610) no Hoare annotation was computed. [2022-11-18 21:00:59,725 INFO L899 garLoopResultBuilder]: For program point L7600(line 7600) no Hoare annotation was computed. [2022-11-18 21:00:59,725 INFO L895 garLoopResultBuilder]: At program point L7601(lines 7595 7609) the Hoare annotation is: (or (= |tgt_ring_exit_~i~3#1| 0) (and (<= |tgt_ring_exit_~i~3#1| 2147483646) (<= 1 |tgt_ring_exit_~i~3#1|))) [2022-11-18 21:00:59,725 INFO L902 garLoopResultBuilder]: At program point tgt_ring_exitENTRY(lines 7593 7610) the Hoare annotation is: true [2022-11-18 21:00:59,725 INFO L895 garLoopResultBuilder]: At program point L8265(lines 8264 8266) the Hoare annotation is: (or (= |tgt_ring_exit_~i~3#1| 0) (and (<= 1 |tgt_ring_exit_~i~3#1|) (< |tgt_ring_exit_~i~3#1| 2147483646))) [2022-11-18 21:00:59,725 INFO L895 garLoopResultBuilder]: At program point L7550(lines 7533 7554) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_retval_1~0 0))) (.cse1 (and (<= |uspace_ring_map_~i~2#1| 2147483646) (<= 1 |uspace_ring_map_~i~2#1|))) (.cse2 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 (not (= ~ldv_state_variable_1~0 2)) .cse1 (not (<= 1 ~ref_cnt~0)) .cse2 (not (<= ~ref_cnt~0 1))) (or .cse0 .cse1 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse2))) [2022-11-18 21:00:59,726 INFO L902 garLoopResultBuilder]: At program point uspace_ring_mapENTRY(lines 7528 7555) the Hoare annotation is: true [2022-11-18 21:00:59,726 INFO L895 garLoopResultBuilder]: At program point L7546(lines 7533 7554) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_retval_1~0 0))) (.cse1 (and (<= |uspace_ring_map_~i~2#1| 2147483646) (<= 1 |uspace_ring_map_~i~2#1|))) (.cse2 (= |uspace_ring_map_~i~2#1| 0)) (.cse3 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 .cse1 (not (= ~ref_cnt~0 0)) .cse2 (not (= ~ldv_state_variable_1~0 1)) .cse3) (or .cse0 (not (= ~ldv_state_variable_1~0 2)) .cse1 (not (<= 1 ~ref_cnt~0)) .cse2 .cse3 (not (<= ~ref_cnt~0 1))))) [2022-11-18 21:00:59,726 INFO L895 garLoopResultBuilder]: At program point L8347(lines 8346 8348) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_retval_1~0 0))) (.cse1 (and (<= 1 |uspace_ring_map_~i~2#1|) (< |uspace_ring_map_~i~2#1| 2147483646))) (.cse2 (= |uspace_ring_map_~i~2#1| 0)) (.cse3 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse1 .cse2 .cse3 (not (<= ~ref_cnt~0 1))) (or .cse0 (not (= ~ref_cnt~0 0)) .cse1 .cse2 (not (= ~ldv_state_variable_1~0 1)) .cse3))) [2022-11-18 21:00:59,727 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7545) no Hoare annotation was computed. [2022-11-18 21:00:59,727 INFO L895 garLoopResultBuilder]: At program point L7548(lines 7533 7554) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_retval_1~0 0))) (.cse1 (and (<= 1 |uspace_ring_map_~i~2#1|) (< |uspace_ring_map_~i~2#1| 2147483646))) (.cse2 (= |uspace_ring_map_~i~2#1| 0)) (.cse3 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse1 .cse2 .cse3 (not (<= ~ref_cnt~0 1))) (or .cse0 (not (= ~ref_cnt~0 0)) .cse1 .cse2 (not (= ~ldv_state_variable_1~0 1)) .cse3))) [2022-11-18 21:00:59,727 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7545) no Hoare annotation was computed. [2022-11-18 21:00:59,727 INFO L899 garLoopResultBuilder]: For program point L7545-1(line 7545) no Hoare annotation was computed. [2022-11-18 21:00:59,728 INFO L899 garLoopResultBuilder]: For program point L7545(line 7545) no Hoare annotation was computed. [2022-11-18 21:00:59,728 INFO L899 garLoopResultBuilder]: For program point L7540(lines 7540 7543) no Hoare annotation was computed. [2022-11-18 21:00:59,728 INFO L895 garLoopResultBuilder]: At program point L8213(lines 8212 8214) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_retval_1~0 0))) (.cse1 (and (<= 1 |uspace_ring_map_~i~2#1|) (< |uspace_ring_map_~i~2#1| 2147483646))) (.cse2 (= |uspace_ring_map_~i~2#1| 0)) (.cse3 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse1 .cse2 .cse3 (not (<= ~ref_cnt~0 1))) (or .cse0 (not (= ~ref_cnt~0 0)) .cse1 .cse2 (not (= ~ldv_state_variable_1~0 1)) .cse3))) [2022-11-18 21:00:59,728 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapEXIT(lines 7528 7555) no Hoare annotation was computed. [2022-11-18 21:00:59,728 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapFINAL(lines 7528 7555) no Hoare annotation was computed. [2022-11-18 21:00:59,729 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_destroyFINAL(lines 6604 6619) no Hoare annotation was computed. [2022-11-18 21:00:59,729 INFO L902 garLoopResultBuilder]: At program point L8225(lines 8224 8226) the Hoare annotation is: true [2022-11-18 21:00:59,729 INFO L899 garLoopResultBuilder]: For program point L6615-1(line 6615) no Hoare annotation was computed. [2022-11-18 21:00:59,729 INFO L902 garLoopResultBuilder]: At program point L6615(line 6615) the Hoare annotation is: true [2022-11-18 21:00:59,729 INFO L899 garLoopResultBuilder]: For program point L6613-1(line 6613) no Hoare annotation was computed. [2022-11-18 21:00:59,730 INFO L895 garLoopResultBuilder]: At program point L6613(line 6613) the Hoare annotation is: (let ((.cse0 (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))) (.cse1 (not (= ~ldv_retval_1~0 0))) (.cse2 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 .cse1 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse2 (not (<= ~ref_cnt~0 1))) (or .cse0 .cse1 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse2))) [2022-11-18 21:00:59,730 INFO L899 garLoopResultBuilder]: For program point L6575-1(line 6575) no Hoare annotation was computed. [2022-11-18 21:00:59,730 INFO L902 garLoopResultBuilder]: At program point L6575(line 6575) the Hoare annotation is: true [2022-11-18 21:00:59,730 INFO L902 garLoopResultBuilder]: At program point L6577(lines 6561 6579) the Hoare annotation is: true [2022-11-18 21:00:59,730 INFO L899 garLoopResultBuilder]: For program point L6571-1(line 6571) no Hoare annotation was computed. [2022-11-18 21:00:59,730 INFO L902 garLoopResultBuilder]: At program point L6571(line 6571) the Hoare annotation is: true [2022-11-18 21:00:59,731 INFO L899 garLoopResultBuilder]: For program point L6572-1(line 6572) no Hoare annotation was computed. [2022-11-18 21:00:59,731 INFO L902 garLoopResultBuilder]: At program point L6572(line 6572) the Hoare annotation is: true [2022-11-18 21:00:59,731 INFO L899 garLoopResultBuilder]: For program point L6573-1(line 6573) no Hoare annotation was computed. [2022-11-18 21:00:59,731 INFO L902 garLoopResultBuilder]: At program point L6573(line 6573) the Hoare annotation is: true [2022-11-18 21:00:59,731 INFO L902 garLoopResultBuilder]: At program point L8200(lines 8199 8201) the Hoare annotation is: true [2022-11-18 21:00:59,732 INFO L895 garLoopResultBuilder]: At program point scsi_tgt_cmd_destroyENTRY(lines 6604 6619) the Hoare annotation is: (let ((.cse0 (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))) (.cse1 (not (= ~ldv_retval_1~0 0))) (.cse2 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 .cse1 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse2 (not (<= ~ref_cnt~0 1))) (or .cse0 .cse1 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse2))) [2022-11-18 21:00:59,732 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_destroyEXIT(lines 6604 6619) no Hoare annotation was computed. [2022-11-18 21:00:59,732 INFO L899 garLoopResultBuilder]: For program point L6427-1(line 6427) no Hoare annotation was computed. [2022-11-18 21:00:59,732 INFO L902 garLoopResultBuilder]: At program point L6427(line 6427) the Hoare annotation is: true [2022-11-18 21:00:59,732 INFO L899 garLoopResultBuilder]: For program point L6807(line 6807) no Hoare annotation was computed. [2022-11-18 21:00:59,732 INFO L899 garLoopResultBuilder]: For program point L6940(lines 6940 6944) no Hoare annotation was computed. [2022-11-18 21:00:59,733 INFO L899 garLoopResultBuilder]: For program point L6973-1(line 6973) no Hoare annotation was computed. [2022-11-18 21:00:59,733 INFO L902 garLoopResultBuilder]: At program point L6973(line 6973) the Hoare annotation is: true [2022-11-18 21:00:59,733 INFO L899 garLoopResultBuilder]: For program point L6858(lines 6858 6862) no Hoare annotation was computed. [2022-11-18 21:00:59,733 INFO L899 garLoopResultBuilder]: For program point L7469(line 7469) no Hoare annotation was computed. [2022-11-18 21:00:59,733 INFO L902 garLoopResultBuilder]: At program point L6974(line 6974) the Hoare annotation is: true [2022-11-18 21:00:59,733 INFO L899 garLoopResultBuilder]: For program point L7007-1(line 7007) no Hoare annotation was computed. [2022-11-18 21:00:59,734 INFO L902 garLoopResultBuilder]: At program point L7007(line 7007) the Hoare annotation is: true [2022-11-18 21:00:59,734 INFO L899 garLoopResultBuilder]: For program point L6974-1(line 6974) no Hoare annotation was computed. [2022-11-18 21:00:59,734 INFO L902 garLoopResultBuilder]: At program point L6430(line 6430) the Hoare annotation is: true [2022-11-18 21:00:59,734 INFO L902 garLoopResultBuilder]: At program point L6975-1(line 6975) the Hoare annotation is: true [2022-11-18 21:00:59,734 INFO L902 garLoopResultBuilder]: At program point L6975(line 6975) the Hoare annotation is: true [2022-11-18 21:00:59,734 INFO L899 garLoopResultBuilder]: For program point L7008(lines 7008 7012) no Hoare annotation was computed. [2022-11-18 21:00:59,735 INFO L902 garLoopResultBuilder]: At program point L6810(lines 6797 6812) the Hoare annotation is: true [2022-11-18 21:00:59,735 INFO L899 garLoopResultBuilder]: For program point L6876-1(line 6876) no Hoare annotation was computed. [2022-11-18 21:00:59,735 INFO L902 garLoopResultBuilder]: At program point L6876(line 6876) the Hoare annotation is: true [2022-11-18 21:00:59,735 INFO L902 garLoopResultBuilder]: At program point L6909(lines 6890 6918) the Hoare annotation is: true [2022-11-18 21:00:59,735 INFO L899 garLoopResultBuilder]: For program point L6430-1(line 6430) no Hoare annotation was computed. [2022-11-18 21:00:59,736 INFO L895 garLoopResultBuilder]: At program point tgt_writeENTRY(lines 7481 7500) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_retval_1~0 0))) (.cse1 (not (= ~ldv_state_variable_0~0 3))) (.cse2 (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)))) (and (or .cse0 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse1 (not (<= ~ref_cnt~0 1)) .cse2) (or .cse0 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse1 .cse2))) [2022-11-18 21:00:59,736 INFO L899 garLoopResultBuilder]: For program point L6893-1(line 6893) no Hoare annotation was computed. [2022-11-18 21:00:59,736 INFO L902 garLoopResultBuilder]: At program point L6893(line 6893) the Hoare annotation is: true [2022-11-18 21:00:59,736 INFO L902 garLoopResultBuilder]: At program point L8297(lines 8296 8298) the Hoare annotation is: true [2022-11-18 21:00:59,736 INFO L899 garLoopResultBuilder]: For program point L7488-1(line 7488) no Hoare annotation was computed. [2022-11-18 21:00:59,736 INFO L899 garLoopResultBuilder]: For program point L6431(lines 6431 6435) no Hoare annotation was computed. [2022-11-18 21:00:59,737 INFO L902 garLoopResultBuilder]: At program point L7488(line 7488) the Hoare annotation is: true [2022-11-18 21:00:59,737 INFO L902 garLoopResultBuilder]: At program point L6877(lines 6866 6879) the Hoare annotation is: true [2022-11-18 21:00:59,737 INFO L902 garLoopResultBuilder]: At program point L6431-2(lines 6431 6435) the Hoare annotation is: true [2022-11-18 21:00:59,737 INFO L899 garLoopResultBuilder]: For program point L7059(lines 7059 7063) no Hoare annotation was computed. [2022-11-18 21:00:59,737 INFO L899 garLoopResultBuilder]: For program point L6960-2(lines 6932 6986) no Hoare annotation was computed. [2022-11-18 21:00:59,737 INFO L899 garLoopResultBuilder]: For program point L6960(lines 6960 6963) no Hoare annotation was computed. [2022-11-18 21:00:59,737 INFO L902 garLoopResultBuilder]: At program point L6911(lines 6890 6918) the Hoare annotation is: true [2022-11-18 21:00:59,738 INFO L899 garLoopResultBuilder]: For program point L7489(lines 7489 7492) no Hoare annotation was computed. [2022-11-18 21:00:59,738 INFO L899 garLoopResultBuilder]: For program point L6895-1(line 6895) no Hoare annotation was computed. [2022-11-18 21:00:59,738 INFO L902 garLoopResultBuilder]: At program point L6895(line 6895) the Hoare annotation is: true [2022-11-18 21:00:59,738 INFO L899 garLoopResultBuilder]: For program point L7473(line 7473) no Hoare annotation was computed. [2022-11-18 21:00:59,738 INFO L902 garLoopResultBuilder]: At program point L7490(lines 7485 7499) the Hoare annotation is: true [2022-11-18 21:00:59,738 INFO L899 garLoopResultBuilder]: For program point L6830(lines 6830 6834) no Hoare annotation was computed. [2022-11-18 21:00:59,739 INFO L899 garLoopResultBuilder]: For program point L6896-1(line 6896) no Hoare annotation was computed. [2022-11-18 21:00:59,739 INFO L902 garLoopResultBuilder]: At program point L6863(lines 6842 6865) the Hoare annotation is: true [2022-11-18 21:00:59,739 INFO L902 garLoopResultBuilder]: At program point L6896(line 6896) the Hoare annotation is: true [2022-11-18 21:00:59,739 INFO L899 garLoopResultBuilder]: For program point L6946(lines 6946 6951) no Hoare annotation was computed. [2022-11-18 21:00:59,739 INFO L899 garLoopResultBuilder]: For program point L7458(lines 7458 7476) no Hoare annotation was computed. [2022-11-18 21:00:59,739 INFO L902 garLoopResultBuilder]: At program point L6913(lines 6890 6918) the Hoare annotation is: true [2022-11-18 21:00:59,740 INFO L902 garLoopResultBuilder]: At program point L6451(lines 6448 6453) the Hoare annotation is: true [2022-11-18 21:00:59,740 INFO L902 garLoopResultBuilder]: At program point L6831-1(lines 6818 6840) the Hoare annotation is: true [2022-11-18 21:00:59,740 INFO L902 garLoopResultBuilder]: At program point L6831(line 6831) the Hoare annotation is: true [2022-11-18 21:00:59,740 INFO L899 garLoopResultBuilder]: For program point L7459(line 7459) no Hoare annotation was computed. [2022-11-18 21:00:59,740 INFO L899 garLoopResultBuilder]: For program point L7013(lines 7013 7017) no Hoare annotation was computed. [2022-11-18 21:00:59,740 INFO L899 garLoopResultBuilder]: For program point L6964-1(lines 6964 6981) no Hoare annotation was computed. [2022-11-18 21:00:59,740 INFO L899 garLoopResultBuilder]: For program point L7493-1(line 7493) no Hoare annotation was computed. [2022-11-18 21:00:59,741 INFO L899 garLoopResultBuilder]: For program point L6436(line 6436) no Hoare annotation was computed. [2022-11-18 21:00:59,741 INFO L902 garLoopResultBuilder]: At program point L7493(line 7493) the Hoare annotation is: true [2022-11-18 21:00:59,741 INFO L902 garLoopResultBuilder]: At program point L7477(lines 7456 7479) the Hoare annotation is: true [2022-11-18 21:00:59,741 INFO L899 garLoopResultBuilder]: For program point L6916(line 6916) no Hoare annotation was computed. [2022-11-18 21:00:59,741 INFO L902 garLoopResultBuilder]: At program point L7478(lines 7454 7480) the Hoare annotation is: true [2022-11-18 21:00:59,742 INFO L902 garLoopResultBuilder]: At program point L7065(lines 7051 7068) the Hoare annotation is: true [2022-11-18 21:00:59,742 INFO L899 garLoopResultBuilder]: For program point L6421-1(line 6421) no Hoare annotation was computed. [2022-11-18 21:00:59,742 INFO L902 garLoopResultBuilder]: At program point L6421(line 6421) the Hoare annotation is: true [2022-11-18 21:00:59,742 INFO L902 garLoopResultBuilder]: At program point L6983(lines 6932 6986) the Hoare annotation is: true [2022-11-18 21:00:59,742 INFO L902 garLoopResultBuilder]: At program point L6917(lines 6880 6919) the Hoare annotation is: true [2022-11-18 21:00:59,742 INFO L902 garLoopResultBuilder]: At program point L8255(lines 8254 8256) the Hoare annotation is: true [2022-11-18 21:00:59,742 INFO L899 garLoopResultBuilder]: For program point L7066(line 7066) no Hoare annotation was computed. [2022-11-18 21:00:59,743 INFO L902 garLoopResultBuilder]: At program point L6934(line 6934) the Hoare annotation is: true [2022-11-18 21:00:59,743 INFO L899 garLoopResultBuilder]: For program point L6422(lines 6422 6438) no Hoare annotation was computed. [2022-11-18 21:00:59,743 INFO L899 garLoopResultBuilder]: For program point L6967(lines 6967 6979) no Hoare annotation was computed. [2022-11-18 21:00:59,743 INFO L902 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: true [2022-11-18 21:00:59,743 INFO L899 garLoopResultBuilder]: For program point L6934-1(line 6934) no Hoare annotation was computed. [2022-11-18 21:00:59,743 INFO L899 garLoopResultBuilder]: For program point L6901(lines 6901 6906) no Hoare annotation was computed. [2022-11-18 21:00:59,744 INFO L899 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2022-11-18 21:00:59,744 INFO L902 garLoopResultBuilder]: At program point L6439(lines 6410 6441) the Hoare annotation is: true [2022-11-18 21:00:59,744 INFO L899 garLoopResultBuilder]: For program point L6984(line 6984) no Hoare annotation was computed. [2022-11-18 21:00:59,744 INFO L902 garLoopResultBuilder]: At program point L7496(lines 7485 7499) the Hoare annotation is: true [2022-11-18 21:00:59,744 INFO L899 garLoopResultBuilder]: For program point tgt_writeFINAL(lines 7481 7500) no Hoare annotation was computed. [2022-11-18 21:00:59,744 INFO L899 garLoopResultBuilder]: For program point L6852-2(lines 6852 6856) no Hoare annotation was computed. [2022-11-18 21:00:59,745 INFO L899 garLoopResultBuilder]: For program point L6852(lines 6852 6856) no Hoare annotation was computed. [2022-11-18 21:00:59,745 INFO L902 garLoopResultBuilder]: At program point L7067(lines 7048 7069) the Hoare annotation is: true [2022-11-18 21:00:59,745 INFO L899 garLoopResultBuilder]: For program point L6423-1(line 6423) no Hoare annotation was computed. [2022-11-18 21:00:59,745 INFO L899 garLoopResultBuilder]: For program point L6935(lines 6935 6939) no Hoare annotation was computed. [2022-11-18 21:00:59,745 INFO L902 garLoopResultBuilder]: At program point L6423(line 6423) the Hoare annotation is: true [2022-11-18 21:00:59,745 INFO L899 garLoopResultBuilder]: For program point tgt_writeEXIT(lines 7481 7500) no Hoare annotation was computed. [2022-11-18 21:00:59,746 INFO L902 garLoopResultBuilder]: At program point L6985(lines 6920 6987) the Hoare annotation is: true [2022-11-18 21:00:59,746 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,746 INFO L902 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2022-11-18 21:00:59,746 INFO L899 garLoopResultBuilder]: For program point L-1-2(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,746 INFO L899 garLoopResultBuilder]: For program point L-1-4(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,746 INFO L902 garLoopResultBuilder]: At program point L-1-5(line -1) the Hoare annotation is: true [2022-11-18 21:00:59,747 INFO L902 garLoopResultBuilder]: At program point L6870(line 6870) the Hoare annotation is: true [2022-11-18 21:00:59,747 INFO L899 garLoopResultBuilder]: For program point L-1-6(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,747 INFO L902 garLoopResultBuilder]: At program point L6903(line 6903) the Hoare annotation is: true [2022-11-18 21:00:59,747 INFO L902 garLoopResultBuilder]: At program point L-1-8(line -1) the Hoare annotation is: true [2022-11-18 21:00:59,747 INFO L899 garLoopResultBuilder]: For program point L-1-9(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,747 INFO L899 garLoopResultBuilder]: For program point L-1-10(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,747 INFO L902 garLoopResultBuilder]: At program point L-1-11(line -1) the Hoare annotation is: true [2022-11-18 21:00:59,748 INFO L902 garLoopResultBuilder]: At program point L8340(lines 8339 8341) the Hoare annotation is: true [2022-11-18 21:00:59,748 INFO L899 garLoopResultBuilder]: For program point L-1-12(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,748 INFO L899 garLoopResultBuilder]: For program point L6870-1(line 6870) no Hoare annotation was computed. [2022-11-18 21:00:59,748 INFO L899 garLoopResultBuilder]: For program point L-1-13(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,748 INFO L902 garLoopResultBuilder]: At program point L7019(lines 7005 7022) the Hoare annotation is: true [2022-11-18 21:00:59,748 INFO L899 garLoopResultBuilder]: For program point L6953(lines 6953 6957) no Hoare annotation was computed. [2022-11-18 21:00:59,749 INFO L899 garLoopResultBuilder]: For program point L7465(line 7465) no Hoare annotation was computed. [2022-11-18 21:00:59,749 INFO L899 garLoopResultBuilder]: For program point L6838(line 6838) no Hoare annotation was computed. [2022-11-18 21:00:59,749 INFO L899 garLoopResultBuilder]: For program point L6871(lines 6871 6874) no Hoare annotation was computed. [2022-11-18 21:00:59,749 INFO L899 garLoopResultBuilder]: For program point L6425-1(line 6425) no Hoare annotation was computed. [2022-11-18 21:00:59,749 INFO L902 garLoopResultBuilder]: At program point L6425(line 6425) the Hoare annotation is: true [2022-11-18 21:00:59,749 INFO L899 garLoopResultBuilder]: For program point L6871-2(lines 6871 6874) no Hoare annotation was computed. [2022-11-18 21:00:59,749 INFO L899 garLoopResultBuilder]: For program point L6805(lines 6805 6809) no Hoare annotation was computed. [2022-11-18 21:00:59,750 INFO L899 garLoopResultBuilder]: For program point L7020(line 7020) no Hoare annotation was computed. [2022-11-18 21:00:59,750 INFO L899 garLoopResultBuilder]: For program point L7053-1(line 7053) no Hoare annotation was computed. [2022-11-18 21:00:59,750 INFO L902 garLoopResultBuilder]: At program point L7053(line 7053) the Hoare annotation is: true [2022-11-18 21:00:59,750 INFO L899 garLoopResultBuilder]: For program point L6822(lines 6822 6827) no Hoare annotation was computed. [2022-11-18 21:00:59,750 INFO L899 garLoopResultBuilder]: For program point L6426(lines 6426 6437) no Hoare annotation was computed. [2022-11-18 21:00:59,750 INFO L899 garLoopResultBuilder]: For program point L6971-1(line 6971) no Hoare annotation was computed. [2022-11-18 21:00:59,751 INFO L902 garLoopResultBuilder]: At program point L6971(line 6971) the Hoare annotation is: true [2022-11-18 21:00:59,751 INFO L899 garLoopResultBuilder]: For program point L6806(line 6806) no Hoare annotation was computed. [2022-11-18 21:00:59,751 INFO L902 garLoopResultBuilder]: At program point L6839(lines 6813 6841) the Hoare annotation is: true [2022-11-18 21:00:59,751 INFO L899 garLoopResultBuilder]: For program point L6426-2(lines 6422 6438) no Hoare annotation was computed. [2022-11-18 21:00:59,751 INFO L899 garLoopResultBuilder]: For program point L6806-2(line 6806) no Hoare annotation was computed. [2022-11-18 21:00:59,751 INFO L899 garLoopResultBuilder]: For program point L7054(lines 7054 7058) no Hoare annotation was computed. [2022-11-18 21:00:59,752 INFO L902 garLoopResultBuilder]: At program point L7021(lines 7002 7023) the Hoare annotation is: true [2022-11-18 21:00:59,752 INFO L899 garLoopResultBuilder]: For program point L7616-1(lines 7616 7617) no Hoare annotation was computed. [2022-11-18 21:00:59,752 INFO L895 garLoopResultBuilder]: At program point L7616(lines 7616 7617) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (= ~ldv_retval_1~0 0)) (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_0~0 1))) [2022-11-18 21:00:59,752 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initFINAL(lines 7611 7637) no Hoare annotation was computed. [2022-11-18 21:00:59,752 INFO L899 garLoopResultBuilder]: For program point L7627-1(line 7627) no Hoare annotation was computed. [2022-11-18 21:00:59,752 INFO L899 garLoopResultBuilder]: For program point L7627(line 7627) no Hoare annotation was computed. [2022-11-18 21:00:59,753 INFO L895 garLoopResultBuilder]: At program point tgt_ring_initENTRY(lines 7611 7637) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (not (= ~ldv_retval_1~0 0)) (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_0~0 1)) (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|))) [2022-11-18 21:00:59,753 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7627) no Hoare annotation was computed. [2022-11-18 21:00:59,753 INFO L899 garLoopResultBuilder]: For program point L7615-1(line 7615) no Hoare annotation was computed. [2022-11-18 21:00:59,753 INFO L895 garLoopResultBuilder]: At program point L7615(line 7615) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (= ~ldv_retval_1~0 0)) (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_0~0 1))) [2022-11-18 21:00:59,753 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initEXIT(lines 7611 7637) no Hoare annotation was computed. [2022-11-18 21:00:59,754 INFO L895 garLoopResultBuilder]: At program point L7630(lines 7614 7636) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (not (= ~ldv_retval_1~0 0)) (not (= ~ref_cnt~0 0)) (and (<= 1 |tgt_ring_init_~i~4#1|) (< |tgt_ring_init_~i~4#1| 2147483646)) (not (= ~ldv_state_variable_0~0 1)) (= |tgt_ring_init_~i~4#1| 0)) [2022-11-18 21:00:59,754 INFO L895 garLoopResultBuilder]: At program point L8272(lines 8271 8273) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (not (= ~ldv_retval_1~0 0)) (not (= ~ref_cnt~0 0)) (and (<= 1 |tgt_ring_init_~i~4#1|) (< |tgt_ring_init_~i~4#1| 2147483646)) (not (= ~ldv_state_variable_0~0 1)) (= |tgt_ring_init_~i~4#1| 0)) [2022-11-18 21:00:59,754 INFO L895 garLoopResultBuilder]: At program point L7632(lines 7614 7636) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (and (<= |tgt_ring_init_~i~4#1| 2147483646) (<= 1 |tgt_ring_init_~i~4#1|)) (not (= ~ldv_retval_1~0 0)) (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_0~0 1))) [2022-11-18 21:00:59,754 INFO L895 garLoopResultBuilder]: At program point L7628(lines 7614 7636) the Hoare annotation is: (or (not (= ~ldv_state_variable_1~0 0)) (and (<= |tgt_ring_init_~i~4#1| 2147483646) (<= 1 |tgt_ring_init_~i~4#1|)) (not (= ~ldv_retval_1~0 0)) (not (= ~ref_cnt~0 0)) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |tgt_ring_init_~i~4#1| 0)) (not (= ~ldv_state_variable_0~0 1))) [2022-11-18 21:00:59,755 INFO L899 garLoopResultBuilder]: For program point L7622(lines 7622 7626) no Hoare annotation was computed. [2022-11-18 21:00:59,755 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7627) no Hoare annotation was computed. [2022-11-18 21:00:59,755 INFO L899 garLoopResultBuilder]: For program point ldv_errorFINAL(lines 7842 7847) no Hoare annotation was computed. [2022-11-18 21:00:59,755 INFO L902 garLoopResultBuilder]: At program point ldv_errorENTRY(lines 7842 7847) the Hoare annotation is: true [2022-11-18 21:00:59,755 INFO L899 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 7842 7847) no Hoare annotation was computed. [2022-11-18 21:00:59,755 INFO L899 garLoopResultBuilder]: For program point list_delFINAL(lines 8290 8292) no Hoare annotation was computed. [2022-11-18 21:00:59,756 INFO L899 garLoopResultBuilder]: For program point list_delEXIT(lines 8290 8292) no Hoare annotation was computed. [2022-11-18 21:00:59,756 INFO L902 garLoopResultBuilder]: At program point list_delENTRY(lines 8290 8292) the Hoare annotation is: true [2022-11-18 21:00:59,756 INFO L902 garLoopResultBuilder]: At program point kmem_cache_freeENTRY(lines 8283 8285) the Hoare annotation is: true [2022-11-18 21:00:59,756 INFO L899 garLoopResultBuilder]: For program point kmem_cache_freeEXIT(lines 8283 8285) no Hoare annotation was computed. [2022-11-18 21:00:59,756 INFO L899 garLoopResultBuilder]: For program point kmem_cache_freeFINAL(lines 8283 8285) no Hoare annotation was computed. [2022-11-18 21:00:59,756 INFO L899 garLoopResultBuilder]: For program point L7297-2(line 7297) no Hoare annotation was computed. [2022-11-18 21:00:59,757 INFO L899 garLoopResultBuilder]: For program point L7297(line 7297) no Hoare annotation was computed. [2022-11-18 21:00:59,757 INFO L899 garLoopResultBuilder]: For program point L7297-4(line 7297) no Hoare annotation was computed. [2022-11-18 21:00:59,757 INFO L899 garLoopResultBuilder]: For program point tgt_head_eventFINAL(lines 7292 7300) no Hoare annotation was computed. [2022-11-18 21:00:59,757 INFO L899 garLoopResultBuilder]: For program point tgt_head_eventEXIT(lines 7292 7300) no Hoare annotation was computed. [2022-11-18 21:00:59,757 INFO L902 garLoopResultBuilder]: At program point tgt_head_eventENTRY(lines 7292 7300) the Hoare annotation is: true [2022-11-18 21:00:59,757 INFO L899 garLoopResultBuilder]: For program point L7519(line 7519) no Hoare annotation was computed. [2022-11-18 21:00:59,758 INFO L899 garLoopResultBuilder]: For program point L7521-2(line 7521) no Hoare annotation was computed. [2022-11-18 21:00:59,758 INFO L899 garLoopResultBuilder]: For program point L7521(line 7521) no Hoare annotation was computed. [2022-11-18 21:00:59,758 INFO L899 garLoopResultBuilder]: For program point L7261-2(lines 7261 7266) no Hoare annotation was computed. [2022-11-18 21:00:59,758 INFO L899 garLoopResultBuilder]: For program point L7261(lines 7261 7263) no Hoare annotation was computed. [2022-11-18 21:00:59,758 INFO L899 garLoopResultBuilder]: For program point L7513-1(line 7513) no Hoare annotation was computed. [2022-11-18 21:00:59,758 INFO L902 garLoopResultBuilder]: At program point L7261-4(lines 7257 7269) the Hoare annotation is: true [2022-11-18 21:00:59,758 INFO L902 garLoopResultBuilder]: At program point L7513(line 7513) the Hoare annotation is: true [2022-11-18 21:00:59,759 INFO L902 garLoopResultBuilder]: At program point tgt_pollENTRY(lines 7501 7527) the Hoare annotation is: true [2022-11-18 21:00:59,759 INFO L899 garLoopResultBuilder]: For program point L7524(line 7524) no Hoare annotation was computed. [2022-11-18 21:00:59,759 INFO L902 garLoopResultBuilder]: At program point L7520-1(lines 7520 7523) the Hoare annotation is: true [2022-11-18 21:00:59,759 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,759 INFO L899 garLoopResultBuilder]: For program point L7520(lines 7520 7523) no Hoare annotation was computed. [2022-11-18 21:00:59,759 INFO L899 garLoopResultBuilder]: For program point L7514(lines 7514 7518) no Hoare annotation was computed. [2022-11-18 21:00:59,760 INFO L899 garLoopResultBuilder]: For program point L7512-1(line 7512) no Hoare annotation was computed. [2022-11-18 21:00:59,760 INFO L902 garLoopResultBuilder]: At program point L7512(line 7512) the Hoare annotation is: true [2022-11-18 21:00:59,760 INFO L902 garLoopResultBuilder]: At program point L7514-2(lines 7514 7518) the Hoare annotation is: true [2022-11-18 21:00:59,760 INFO L899 garLoopResultBuilder]: For program point tgt_pollEXIT(lines 7501 7527) no Hoare annotation was computed. [2022-11-18 21:00:59,760 INFO L899 garLoopResultBuilder]: For program point tgt_pollFINAL(lines 7501 7527) no Hoare annotation was computed. [2022-11-18 21:00:59,760 INFO L899 garLoopResultBuilder]: For program point scsi_unmap_user_pagesFINAL(lines 6597 6603) no Hoare annotation was computed. [2022-11-18 21:00:59,761 INFO L902 garLoopResultBuilder]: At program point scsi_unmap_user_pagesENTRY(lines 6597 6603) the Hoare annotation is: true [2022-11-18 21:00:59,761 INFO L899 garLoopResultBuilder]: For program point scsi_unmap_user_pagesEXIT(lines 6597 6603) no Hoare annotation was computed. [2022-11-18 21:00:59,761 INFO L902 garLoopResultBuilder]: At program point L8259(lines 8258 8260) the Hoare annotation is: true [2022-11-18 21:00:59,761 INFO L899 garLoopResultBuilder]: For program point _raw_spin_lock_irqsaveFINAL(lines 8235 8237) no Hoare annotation was computed. [2022-11-18 21:00:59,761 INFO L899 garLoopResultBuilder]: For program point _raw_spin_lock_irqsaveEXIT(lines 8235 8237) no Hoare annotation was computed. [2022-11-18 21:00:59,761 INFO L902 garLoopResultBuilder]: At program point _raw_spin_lock_irqsaveENTRY(lines 8235 8237) the Hoare annotation is: true [2022-11-18 21:00:59,762 INFO L902 garLoopResultBuilder]: At program point scsi_host_putENTRY(lines 8335 8337) the Hoare annotation is: true [2022-11-18 21:00:59,762 INFO L899 garLoopResultBuilder]: For program point scsi_host_putFINAL(lines 8335 8337) no Hoare annotation was computed. [2022-11-18 21:00:59,762 INFO L899 garLoopResultBuilder]: For program point scsi_host_putEXIT(lines 8335 8337) no Hoare annotation was computed. [2022-11-18 21:00:59,762 INFO L899 garLoopResultBuilder]: For program point hash_64EXIT(lines 6456 6476) no Hoare annotation was computed. [2022-11-18 21:00:59,762 INFO L902 garLoopResultBuilder]: At program point hash_64ENTRY(lines 6456 6476) the Hoare annotation is: true [2022-11-18 21:00:59,762 INFO L899 garLoopResultBuilder]: For program point hash_64FINAL(lines 6456 6476) no Hoare annotation was computed. [2022-11-18 21:00:59,763 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~intEXIT(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,763 INFO L902 garLoopResultBuilder]: At program point ##fun~$Pointer$~TO~intENTRY(line -1) the Hoare annotation is: true [2022-11-18 21:00:59,763 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~intFINAL(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,763 INFO L899 garLoopResultBuilder]: For program point ldv__builtin_expectFINAL(lines 7849 7854) no Hoare annotation was computed. [2022-11-18 21:00:59,763 INFO L902 garLoopResultBuilder]: At program point ldv__builtin_expectENTRY(lines 7849 7854) the Hoare annotation is: true [2022-11-18 21:00:59,763 INFO L899 garLoopResultBuilder]: For program point ldv__builtin_expectEXIT(lines 7849 7854) no Hoare annotation was computed. [2022-11-18 21:00:59,764 INFO L895 garLoopResultBuilder]: At program point tgt_openENTRY(lines 7580 7587) the Hoare annotation is: (let ((.cse0 (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))) (.cse1 (not (= ~ldv_retval_1~0 0))) (.cse2 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 .cse1 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse2 (not (<= ~ref_cnt~0 1))) (or .cse0 .cse1 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse2))) [2022-11-18 21:00:59,764 INFO L899 garLoopResultBuilder]: For program point tgt_openFINAL(lines 7580 7587) no Hoare annotation was computed. [2022-11-18 21:00:59,764 INFO L899 garLoopResultBuilder]: For program point tgt_openEXIT(lines 7580 7587) no Hoare annotation was computed. [2022-11-18 21:00:59,764 INFO L895 garLoopResultBuilder]: At program point scsi_host_lookupENTRY(lines 8332 8334) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_retval_1~0 0))) (.cse1 (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) (.cse2 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse1 .cse2) (or .cse0 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse1 .cse2 (not (<= ~ref_cnt~0 1))))) [2022-11-18 21:00:59,765 INFO L899 garLoopResultBuilder]: For program point scsi_host_lookupFINAL(lines 8332 8334) no Hoare annotation was computed. [2022-11-18 21:00:59,765 INFO L899 garLoopResultBuilder]: For program point L8333-1(line 8333) no Hoare annotation was computed. [2022-11-18 21:00:59,765 INFO L895 garLoopResultBuilder]: At program point L8333(line 8333) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_retval_1~0 0))) (.cse1 (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) (.cse2 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse1 .cse2) (or .cse0 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse1 .cse2 (not (<= ~ref_cnt~0 1))))) [2022-11-18 21:00:59,765 INFO L899 garLoopResultBuilder]: For program point scsi_host_lookupEXIT(lines 8332 8334) no Hoare annotation was computed. [2022-11-18 21:00:59,765 INFO L902 garLoopResultBuilder]: At program point tgt_mmapENTRY(lines 7556 7579) the Hoare annotation is: true [2022-11-18 21:00:59,765 INFO L899 garLoopResultBuilder]: For program point L7576-1(line 7576) no Hoare annotation was computed. [2022-11-18 21:00:59,766 INFO L902 garLoopResultBuilder]: At program point L7576(line 7576) the Hoare annotation is: true [2022-11-18 21:00:59,766 INFO L899 garLoopResultBuilder]: For program point L7571-1(line 7571) no Hoare annotation was computed. [2022-11-18 21:00:59,766 INFO L899 garLoopResultBuilder]: For program point tgt_mmapEXIT(lines 7556 7579) no Hoare annotation was computed. [2022-11-18 21:00:59,766 INFO L902 garLoopResultBuilder]: At program point L7571(line 7571) the Hoare annotation is: true [2022-11-18 21:00:59,766 INFO L899 garLoopResultBuilder]: For program point L7572(lines 7572 7575) no Hoare annotation was computed. [2022-11-18 21:00:59,766 INFO L899 garLoopResultBuilder]: For program point tgt_mmapFINAL(lines 7556 7579) no Hoare annotation was computed. [2022-11-18 21:00:59,767 INFO L899 garLoopResultBuilder]: For program point L7564(lines 7564 7569) no Hoare annotation was computed. [2022-11-18 21:00:59,767 INFO L899 garLoopResultBuilder]: For program point L7560(lines 7560 7563) no Hoare annotation was computed. [2022-11-18 21:00:59,767 INFO L902 garLoopResultBuilder]: At program point scsi_release_buffersENTRY(lines 8342 8344) the Hoare annotation is: true [2022-11-18 21:00:59,767 INFO L899 garLoopResultBuilder]: For program point scsi_release_buffersFINAL(lines 8342 8344) no Hoare annotation was computed. [2022-11-18 21:00:59,767 INFO L899 garLoopResultBuilder]: For program point scsi_release_buffersEXIT(lines 8342 8344) no Hoare annotation was computed. [2022-11-18 21:00:59,767 INFO L899 garLoopResultBuilder]: For program point kmem_cache_destroyEXIT(lines 8280 8282) no Hoare annotation was computed. [2022-11-18 21:00:59,768 INFO L902 garLoopResultBuilder]: At program point kmem_cache_destroyENTRY(lines 8280 8282) the Hoare annotation is: true [2022-11-18 21:00:59,768 INFO L899 garLoopResultBuilder]: For program point kmem_cache_destroyFINAL(lines 8280 8282) no Hoare annotation was computed. [2022-11-18 21:00:59,768 INFO L902 garLoopResultBuilder]: At program point L8239(lines 8238 8240) the Hoare annotation is: true [2022-11-18 21:00:59,768 INFO L902 garLoopResultBuilder]: At program point spin_unlock_irqrestoreENTRY(lines 6348 6354) the Hoare annotation is: true [2022-11-18 21:00:59,768 INFO L899 garLoopResultBuilder]: For program point spin_unlock_irqrestoreEXIT(lines 6348 6354) no Hoare annotation was computed. [2022-11-18 21:00:59,768 INFO L899 garLoopResultBuilder]: For program point spin_unlock_irqrestoreFINAL(lines 6348 6354) no Hoare annotation was computed. [2022-11-18 21:00:59,769 INFO L895 garLoopResultBuilder]: At program point ldv_mallocENTRY(lines 6377 6386) the Hoare annotation is: (let ((.cse3 (not (= ~ldv_state_variable_0~0 3))) (.cse0 (not (= ~ldv_retval_1~0 0))) (.cse1 (not (= ~ref_cnt~0 0))) (.cse2 (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)))) (and (or .cse0 .cse1 (not (= ~ldv_state_variable_1~0 1)) .cse2 .cse3) (or .cse0 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse2 .cse3 (not (<= ~ref_cnt~0 1))) (or (not (= ~ldv_state_variable_1~0 0)) .cse0 .cse1 (not (= ~ldv_state_variable_0~0 1)) .cse2))) [2022-11-18 21:00:59,769 INFO L899 garLoopResultBuilder]: For program point L6369(lines 6369 6371) no Hoare annotation was computed. [2022-11-18 21:00:59,769 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 6377 6386) no Hoare annotation was computed. [2022-11-18 21:00:59,769 INFO L899 garLoopResultBuilder]: For program point L6379(lines 6379 6385) no Hoare annotation was computed. [2022-11-18 21:00:59,770 INFO L902 garLoopResultBuilder]: At program point L6375(lines 6373 6376) the Hoare annotation is: true [2022-11-18 21:00:59,770 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 6377 6386) no Hoare annotation was computed. [2022-11-18 21:00:59,770 INFO L899 garLoopResultBuilder]: For program point L6370(line 6370) no Hoare annotation was computed. [2022-11-18 21:00:59,770 INFO L899 garLoopResultBuilder]: For program point destroy_workqueueFINAL(lines 8261 8263) no Hoare annotation was computed. [2022-11-18 21:00:59,770 INFO L899 garLoopResultBuilder]: For program point destroy_workqueueEXIT(lines 8261 8263) no Hoare annotation was computed. [2022-11-18 21:00:59,770 INFO L902 garLoopResultBuilder]: At program point destroy_workqueueENTRY(lines 8261 8263) the Hoare annotation is: true [2022-11-18 21:00:59,771 INFO L899 garLoopResultBuilder]: For program point _copy_from_userEXIT(lines 8231 8233) no Hoare annotation was computed. [2022-11-18 21:00:59,771 INFO L902 garLoopResultBuilder]: At program point _copy_from_userENTRY(lines 8231 8233) the Hoare annotation is: true [2022-11-18 21:00:59,771 INFO L899 garLoopResultBuilder]: For program point _copy_from_userFINAL(lines 8231 8233) no Hoare annotation was computed. [2022-11-18 21:00:59,771 INFO L902 garLoopResultBuilder]: At program point L8206(lines 8205 8207) the Hoare annotation is: true [2022-11-18 21:00:59,771 INFO L902 garLoopResultBuilder]: At program point list_addENTRY(lines 6292 6298) the Hoare annotation is: true [2022-11-18 21:00:59,771 INFO L899 garLoopResultBuilder]: For program point list_addFINAL(lines 6292 6298) no Hoare annotation was computed. [2022-11-18 21:00:59,771 INFO L899 garLoopResultBuilder]: For program point list_addEXIT(lines 6292 6298) no Hoare annotation was computed. [2022-11-18 21:00:59,772 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7750) no Hoare annotation was computed. [2022-11-18 21:00:59,772 INFO L899 garLoopResultBuilder]: For program point L7137(lines 7137 7142) no Hoare annotation was computed. [2022-11-18 21:00:59,772 INFO L899 garLoopResultBuilder]: For program point L7699-1(line 7699) no Hoare annotation was computed. [2022-11-18 21:00:59,772 INFO L895 garLoopResultBuilder]: At program point L7699(line 7699) the Hoare annotation is: (and (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) (= ~ldv_state_variable_0~0 3) (<= ~ref_cnt~0 1)) [2022-11-18 21:00:59,772 INFO L895 garLoopResultBuilder]: At program point L7650(line 7650) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)) [2022-11-18 21:00:59,773 INFO L899 garLoopResultBuilder]: For program point L7716(line 7716) no Hoare annotation was computed. [2022-11-18 21:00:59,773 INFO L899 garLoopResultBuilder]: For program point L7105-1(line 7105) no Hoare annotation was computed. [2022-11-18 21:00:59,773 INFO L902 garLoopResultBuilder]: At program point L7105(line 7105) the Hoare annotation is: true [2022-11-18 21:00:59,773 INFO L899 garLoopResultBuilder]: For program point L7650-1(line 7650) no Hoare annotation was computed. [2022-11-18 21:00:59,773 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,773 INFO L895 garLoopResultBuilder]: At program point L8278(line 8278) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)) [2022-11-18 21:00:59,774 INFO L895 garLoopResultBuilder]: At program point L7667(lines 7649 7671) the Hoare annotation is: (let ((.cse0 (= ~ldv_state_variable_0~0 1)) (.cse1 (= ~ldv_retval_1~0 0))) (or (and .cse0 (<= ~ref_cnt~0 0) .cse1 (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 1)) (and .cse0 .cse1 (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)))) [2022-11-18 21:00:59,774 INFO L895 garLoopResultBuilder]: At program point L8278-2(lines 8277 8279) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)) [2022-11-18 21:00:59,774 INFO L899 garLoopResultBuilder]: For program point L8278-1(line 8278) no Hoare annotation was computed. [2022-11-18 21:00:59,774 INFO L899 garLoopResultBuilder]: For program point L7750(line 7750) no Hoare annotation was computed. [2022-11-18 21:00:59,774 INFO L899 garLoopResultBuilder]: For program point L7717-2(lines 7691 7756) no Hoare annotation was computed. [2022-11-18 21:00:59,774 INFO L899 garLoopResultBuilder]: For program point L7651(lines 7651 7654) no Hoare annotation was computed. [2022-11-18 21:00:59,775 INFO L899 garLoopResultBuilder]: For program point L7717(lines 7717 7721) no Hoare annotation was computed. [2022-11-18 21:00:59,775 INFO L899 garLoopResultBuilder]: For program point L7750-1(line 7750) no Hoare annotation was computed. [2022-11-18 21:00:59,775 INFO L899 garLoopResultBuilder]: For program point L7090(lines 7090 7093) no Hoare annotation was computed. [2022-11-18 21:00:59,775 INFO L895 garLoopResultBuilder]: At program point L7718(line 7718) the Hoare annotation is: (and (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 1) (= ~ref_cnt~0 0) (= ~ldv_state_variable_0~0 3)) [2022-11-18 21:00:59,775 INFO L895 garLoopResultBuilder]: At program point L7107-1(lines 7102 7110) the Hoare annotation is: (= ~ldv_state_variable_1~0 0) [2022-11-18 21:00:59,775 INFO L895 garLoopResultBuilder]: At program point L7107(line 7107) the Hoare annotation is: (= ~ldv_state_variable_1~0 0) [2022-11-18 21:00:59,776 INFO L899 garLoopResultBuilder]: For program point L7718-1(line 7718) no Hoare annotation was computed. [2022-11-18 21:00:59,776 INFO L902 garLoopResultBuilder]: At program point L7173(lines 7115 7175) the Hoare annotation is: true [2022-11-18 21:00:59,776 INFO L899 garLoopResultBuilder]: For program point L7735(line 7735) no Hoare annotation was computed. [2022-11-18 21:00:59,776 INFO L895 garLoopResultBuilder]: At program point L7091(lines 7075 7100) the Hoare annotation is: (let ((.cse0 (= ~ldv_state_variable_0~0 1)) (.cse1 (= ~ldv_retval_1~0 0))) (or (and .cse0 (<= ~ref_cnt~0 0) .cse1 (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 1)) (and .cse0 .cse1 (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)))) [2022-11-18 21:00:59,776 INFO L899 garLoopResultBuilder]: For program point L7669(line 7669) no Hoare annotation was computed. [2022-11-18 21:00:59,776 INFO L899 garLoopResultBuilder]: For program point L8181(lines 8181 8184) no Hoare annotation was computed. [2022-11-18 21:00:59,777 INFO L895 garLoopResultBuilder]: At program point L7670(lines 7647 7672) the Hoare annotation is: (let ((.cse0 (= ~ldv_state_variable_0~0 1)) (.cse1 (= ~ldv_retval_1~0 0))) (or (and .cse0 (<= ~ref_cnt~0 0) .cse1 (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 1)) (and .cse0 .cse1 (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)))) [2022-11-18 21:00:59,777 INFO L899 garLoopResultBuilder]: For program point L7736(lines 7736 7744) no Hoare annotation was computed. [2022-11-18 21:00:59,777 INFO L899 garLoopResultBuilder]: For program point L7125(lines 7125 7168) no Hoare annotation was computed. [2022-11-18 21:00:59,777 INFO L899 garLoopResultBuilder]: For program point L7126(line 7126) no Hoare annotation was computed. [2022-11-18 21:00:59,777 INFO L899 garLoopResultBuilder]: For program point L8183-1(lines 8180 8194) no Hoare annotation was computed. [2022-11-18 21:00:59,777 INFO L899 garLoopResultBuilder]: For program point L7159(line 7159) no Hoare annotation was computed. [2022-11-18 21:00:59,778 INFO L902 garLoopResultBuilder]: At program point L8183(line 8183) the Hoare annotation is: true [2022-11-18 21:00:59,778 INFO L899 garLoopResultBuilder]: For program point L7704(line 7704) no Hoare annotation was computed. [2022-11-18 21:00:59,778 INFO L899 garLoopResultBuilder]: For program point L7737-1(line 7737) no Hoare annotation was computed. [2022-11-18 21:00:59,778 INFO L895 garLoopResultBuilder]: At program point L7737(line 7737) the Hoare annotation is: (and (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 1) (= ~ref_cnt~0 0) (= ~ldv_state_variable_0~0 3)) [2022-11-18 21:00:59,778 INFO L899 garLoopResultBuilder]: For program point L7754(line 7754) no Hoare annotation was computed. [2022-11-18 21:00:59,778 INFO L899 garLoopResultBuilder]: For program point L7655-1(line 7655) no Hoare annotation was computed. [2022-11-18 21:00:59,779 INFO L895 garLoopResultBuilder]: At program point L7655(line 7655) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)) [2022-11-18 21:00:59,779 INFO L899 garLoopResultBuilder]: For program point L7077(lines 7077 7080) no Hoare annotation was computed. [2022-11-18 21:00:59,779 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,779 INFO L899 garLoopResultBuilder]: For program point L7738(lines 7738 7742) no Hoare annotation was computed. [2022-11-18 21:00:59,779 INFO L899 garLoopResultBuilder]: For program point L7127(lines 7127 7130) no Hoare annotation was computed. [2022-11-18 21:00:59,779 INFO L899 garLoopResultBuilder]: For program point L7705-2(lines 7691 7756) no Hoare annotation was computed. [2022-11-18 21:00:59,780 INFO L899 garLoopResultBuilder]: For program point L7705(lines 7705 7709) no Hoare annotation was computed. [2022-11-18 21:00:59,780 INFO L899 garLoopResultBuilder]: For program point L7144(line 7144) no Hoare annotation was computed. [2022-11-18 21:00:59,780 INFO L899 garLoopResultBuilder]: For program point L7656(lines 7656 7659) no Hoare annotation was computed. [2022-11-18 21:00:59,780 INFO L895 garLoopResultBuilder]: At program point L7838(lines 7831 7840) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 1) (= ~ref_cnt~0 0)) [2022-11-18 21:00:59,780 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7750) no Hoare annotation was computed. [2022-11-18 21:00:59,781 INFO L895 garLoopResultBuilder]: At program point L7706(line 7706) the Hoare annotation is: (and (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 1) (= ~ref_cnt~0 0) (= ~ldv_state_variable_0~0 3)) [2022-11-18 21:00:59,781 INFO L899 garLoopResultBuilder]: For program point L7706-1(line 7706) no Hoare annotation was computed. [2022-11-18 21:00:59,781 INFO L899 garLoopResultBuilder]: For program point L7723-1(line 7723) no Hoare annotation was computed. [2022-11-18 21:00:59,781 INFO L895 garLoopResultBuilder]: At program point L7723(line 7723) the Hoare annotation is: (and (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) (= ~ldv_state_variable_0~0 3) (<= ~ref_cnt~0 1)) [2022-11-18 21:00:59,781 INFO L902 garLoopResultBuilder]: At program point L8301(lines 8300 8302) the Hoare annotation is: true [2022-11-18 21:00:59,781 INFO L899 garLoopResultBuilder]: For program point L7145(lines 7145 7157) no Hoare annotation was computed. [2022-11-18 21:00:59,782 INFO L899 garLoopResultBuilder]: For program point L7740-1(line 7740) no Hoare annotation was computed. [2022-11-18 21:00:59,782 INFO L899 garLoopResultBuilder]: For program point L7740(line 7740) no Hoare annotation was computed. [2022-11-18 21:00:59,782 INFO L902 garLoopResultBuilder]: At program point L7641-1(line 7641) the Hoare annotation is: true [2022-11-18 21:00:59,782 INFO L895 garLoopResultBuilder]: At program point L7096(lines 7075 7100) the Hoare annotation is: (let ((.cse0 (= ~ldv_state_variable_0~0 1)) (.cse1 (= ~ldv_retval_1~0 0))) (or (and .cse0 (<= ~ref_cnt~0 0) .cse1 (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 1)) (and .cse0 (<= (+ |ULTIMATE.start_scsi_tgt_init_~err~11#1| 12) 0)) (and .cse0 .cse1 (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)))) [2022-11-18 21:00:59,782 INFO L902 garLoopResultBuilder]: At program point L7641(line 7641) the Hoare annotation is: true [2022-11-18 21:00:59,782 INFO L899 garLoopResultBuilder]: For program point L7691(lines 7691 7756) no Hoare annotation was computed. [2022-11-18 21:00:59,783 INFO L895 garLoopResultBuilder]: At program point L7757(lines 7687 7760) the Hoare annotation is: (let ((.cse0 (= ~ldv_retval_1~0 0)) (.cse1 (= ~ldv_state_variable_0~0 3))) (or (and .cse0 (= ~ldv_state_variable_1~0 1) (= ~ref_cnt~0 0) .cse1) (and .cse0 (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) .cse1 (<= ~ref_cnt~0 1)))) [2022-11-18 21:00:59,783 INFO L895 garLoopResultBuilder]: At program point L8319(lines 8318 8320) the Hoare annotation is: (and (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) (= ~ldv_state_variable_0~0 3) (<= ~ref_cnt~0 1)) [2022-11-18 21:00:59,783 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7740) no Hoare annotation was computed. [2022-11-18 21:00:59,783 INFO L899 garLoopResultBuilder]: For program point L7642(line 7642) no Hoare annotation was computed. [2022-11-18 21:00:59,783 INFO L899 garLoopResultBuilder]: For program point L8187-1(lines 8180 8194) no Hoare annotation was computed. [2022-11-18 21:00:59,784 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,784 INFO L902 garLoopResultBuilder]: At program point L8187(line 8187) the Hoare annotation is: true [2022-11-18 21:00:59,784 INFO L899 garLoopResultBuilder]: For program point L7147(lines 7147 7150) no Hoare annotation was computed. [2022-11-18 21:00:59,784 INFO L899 garLoopResultBuilder]: For program point L7692(line 7692) no Hoare annotation was computed. [2022-11-18 21:00:59,784 INFO L899 garLoopResultBuilder]: For program point L7147-2(lines 7145 7156) no Hoare annotation was computed. [2022-11-18 21:00:59,784 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7740) no Hoare annotation was computed. [2022-11-18 21:00:59,785 INFO L899 garLoopResultBuilder]: For program point L7098(line 7098) no Hoare annotation was computed. [2022-11-18 21:00:59,785 INFO L899 garLoopResultBuilder]: For program point L7693-2(lines 7691 7756) no Hoare annotation was computed. [2022-11-18 21:00:59,785 INFO L899 garLoopResultBuilder]: For program point L7693(lines 7693 7697) no Hoare annotation was computed. [2022-11-18 21:00:59,785 INFO L895 garLoopResultBuilder]: At program point L8288(lines 8287 8289) the Hoare annotation is: (and (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) (= ~ldv_state_variable_0~0 3) (<= ~ref_cnt~0 1)) [2022-11-18 21:00:59,785 INFO L895 garLoopResultBuilder]: At program point L7099(lines 7070 7101) the Hoare annotation is: (let ((.cse0 (= ~ldv_state_variable_0~0 1)) (.cse1 (= ~ldv_retval_1~0 0))) (or (and .cse0 (<= (+ |ULTIMATE.start_scsi_tgt_init_#res#1| 12) 0)) (and .cse0 (<= ~ref_cnt~0 0) .cse1 (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 1)) (and .cse0 .cse1 (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)) (and .cse0 (= |ULTIMATE.start_scsi_tgt_init_#res#1| 0) .cse1 (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) (<= ~ref_cnt~0 1)))) [2022-11-18 21:00:59,786 INFO L899 garLoopResultBuilder]: For program point L7132(line 7132) no Hoare annotation was computed. [2022-11-18 21:00:59,786 INFO L895 garLoopResultBuilder]: At program point L7644(lines 7638 7646) the Hoare annotation is: (= ~ldv_state_variable_1~0 0) [2022-11-18 21:00:59,786 INFO L895 garLoopResultBuilder]: At program point L7694(line 7694) the Hoare annotation is: (and (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 1) (= ~ref_cnt~0 0) (= ~ldv_state_variable_0~0 3)) [2022-11-18 21:00:59,786 INFO L895 garLoopResultBuilder]: At program point L8305(lines 8304 8306) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_retval_1~0 0) (= ~ref_cnt~0 0)) [2022-11-18 21:00:59,786 INFO L899 garLoopResultBuilder]: For program point L7694-1(line 7694) no Hoare annotation was computed. [2022-11-18 21:00:59,786 INFO L899 garLoopResultBuilder]: For program point L7661(lines 7661 7664) no Hoare annotation was computed. [2022-11-18 21:00:59,787 INFO L899 garLoopResultBuilder]: For program point L7711-1(line 7711) no Hoare annotation was computed. [2022-11-18 21:00:59,787 INFO L899 garLoopResultBuilder]: For program point L7166(line 7166) no Hoare annotation was computed. [2022-11-18 21:00:59,787 INFO L895 garLoopResultBuilder]: At program point L7711(line 7711) the Hoare annotation is: (and (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) (= ~ldv_state_variable_0~0 3) (<= ~ref_cnt~0 1)) [2022-11-18 21:00:59,787 INFO L899 garLoopResultBuilder]: For program point L7133(lines 7133 7164) no Hoare annotation was computed. [2022-11-18 21:00:59,787 INFO L895 garLoopResultBuilder]: At program point L7662(lines 7649 7671) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 1) (= ~ref_cnt~0 0)) [2022-11-18 21:00:59,788 INFO L899 garLoopResultBuilder]: For program point L7728(line 7728) no Hoare annotation was computed. [2022-11-18 21:00:59,788 INFO L899 garLoopResultBuilder]: For program point L7084(lines 7084 7088) no Hoare annotation was computed. [2022-11-18 21:00:59,788 INFO L902 garLoopResultBuilder]: At program point L8191-1(lines 8178 8195) the Hoare annotation is: true [2022-11-18 21:00:59,788 INFO L902 garLoopResultBuilder]: At program point L8191(line 8191) the Hoare annotation is: true [2022-11-18 21:00:59,788 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 21:00:59,788 INFO L895 garLoopResultBuilder]: At program point L7828(lines 7821 7830) the Hoare annotation is: (= ~ldv_state_variable_1~0 0) [2022-11-18 21:00:59,789 INFO L895 garLoopResultBuilder]: At program point L8175(lines 8169 8177) the Hoare annotation is: (and (= ~ldv_retval_1~0 0) (= ~ldv_state_variable_1~0 0) (= ~ref_cnt~0 0)) [2022-11-18 21:00:59,789 INFO L899 garLoopResultBuilder]: For program point L7729(lines 7729 7733) no Hoare annotation was computed. [2022-11-18 21:00:59,789 INFO L899 garLoopResultBuilder]: For program point L7746(line 7746) no Hoare annotation was computed. [2022-11-18 21:00:59,789 INFO L899 garLoopResultBuilder]: For program point L7135(lines 7135 7161) no Hoare annotation was computed. [2022-11-18 21:00:59,789 INFO L899 garLoopResultBuilder]: For program point L7747(lines 7747 7752) no Hoare annotation was computed. [2022-11-18 21:00:59,789 INFO L899 garLoopResultBuilder]: For program point L7136(line 7136) no Hoare annotation was computed. [2022-11-18 21:00:59,790 INFO L895 garLoopResultBuilder]: At program point L7169(lines 7118 7174) the Hoare annotation is: (let ((.cse1 (= ~ldv_state_variable_1~0 0)) (.cse2 (= ~ref_cnt~0 0)) (.cse0 (= ~ldv_retval_1~0 0)) (.cse3 (= ~ldv_state_variable_0~0 3))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (= ~ldv_state_variable_1~0 1) .cse2 .cse3) (and (= ~ldv_state_variable_0~0 1) .cse0 .cse1 .cse2) (and .cse0 (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) .cse3 (<= ~ref_cnt~0 1)))) [2022-11-18 21:00:59,790 INFO L902 garLoopResultBuilder]: At program point L7153(lines 7118 7174) the Hoare annotation is: true [2022-11-18 21:00:59,790 INFO L902 garLoopResultBuilder]: At program point scsi_tgt_cmd_to_hostENTRY(lines 6765 6771) the Hoare annotation is: true [2022-11-18 21:00:59,790 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_to_hostFINAL(lines 6765 6771) no Hoare annotation was computed. [2022-11-18 21:00:59,790 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_to_hostEXIT(lines 6765 6771) no Hoare annotation was computed. [2022-11-18 21:00:59,790 INFO L902 garLoopResultBuilder]: At program point spinlock_checkENTRY(lines 6342 6347) the Hoare annotation is: true [2022-11-18 21:00:59,791 INFO L899 garLoopResultBuilder]: For program point spinlock_checkEXIT(lines 6342 6347) no Hoare annotation was computed. [2022-11-18 21:00:59,791 INFO L899 garLoopResultBuilder]: For program point spinlock_checkFINAL(lines 6342 6347) no Hoare annotation was computed. [2022-11-18 21:00:59,794 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:59,797 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:00:59,819 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:00:59,820 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:00:59,820 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 21:00:59,821 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 21:00:59,821 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:00:59,822 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:00:59,822 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 21:00:59,822 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 21:00:59,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:00:59 BoogieIcfgContainer [2022-11-18 21:00:59,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:00:59,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:00:59,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:00:59,829 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:00:59,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:59:22" (3/4) ... [2022-11-18 21:00:59,832 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 21:00:59,839 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_idx_inc [2022-11-18 21:00:59,839 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __raw_spin_lock_init [2022-11-18 21:00:59,840 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_exit [2022-11-18 21:00:59,840 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uspace_ring_map [2022-11-18 21:00:59,840 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_destroy [2022-11-18 21:00:59,840 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_write [2022-11-18 21:00:59,840 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_init [2022-11-18 21:00:59,840 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2022-11-18 21:00:59,841 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2022-11-18 21:00:59,841 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_free [2022-11-18 21:00:59,841 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_head_event [2022-11-18 21:00:59,841 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_poll [2022-11-18 21:00:59,841 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_unmap_user_pages [2022-11-18 21:00:59,841 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _raw_spin_lock_irqsave [2022-11-18 21:00:59,841 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_put [2022-11-18 21:00:59,842 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_64 [2022-11-18 21:00:59,842 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2022-11-18 21:00:59,842 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2022-11-18 21:00:59,842 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_open [2022-11-18 21:00:59,842 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_lookup [2022-11-18 21:00:59,842 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_mmap [2022-11-18 21:00:59,842 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_release_buffers [2022-11-18 21:00:59,842 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_destroy [2022-11-18 21:00:59,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_unlock_irqrestore [2022-11-18 21:00:59,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-11-18 21:00:59,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure destroy_workqueue [2022-11-18 21:00:59,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2022-11-18 21:00:59,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2022-11-18 21:00:59,844 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_to_host [2022-11-18 21:00:59,844 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spinlock_check [2022-11-18 21:00:59,865 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 184 nodes and edges [2022-11-18 21:00:59,872 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2022-11-18 21:00:59,875 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-18 21:00:59,877 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-18 21:00:59,879 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 21:00:59,880 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 21:00:59,915 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((ldv_state_variable_0 == 1 && \result + 12 <= 0) || ((((ldv_state_variable_0 == 1 && ref_cnt <= 0) && ldv_retval_1 == 0) && 0 <= ref_cnt) && ldv_state_variable_1 == 1)) || (((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ldv_state_variable_1 == 0) && ref_cnt == 0)) || (((((ldv_state_variable_0 == 1 && \result == 0) && ldv_retval_1 == 0) && ldv_state_variable_1 == 2) && 1 <= ref_cnt) && ref_cnt <= 1) [2022-11-18 21:00:59,928 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(ldv_state_variable_1 == 0) || (i <= 2147483646 && 1 <= i)) || !(ldv_retval_1 == 0)) || !(ref_cnt == 0)) || (((unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && i == 0)) || !(ldv_state_variable_0 == 1) [2022-11-18 21:01:00,054 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:01:00,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:01:00,055 INFO L158 Benchmark]: Toolchain (without parser) took 102136.89ms. Allocated memory was 113.2MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 68.4MB in the beginning and 681.0MB in the end (delta: -612.6MB). Peak memory consumption was 783.7MB. Max. memory is 16.1GB. [2022-11-18 21:01:00,055 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 86.4MB in the beginning and 86.4MB in the end (delta: 25.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:01:00,056 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2299.31ms. Allocated memory was 113.2MB in the beginning and 176.2MB in the end (delta: 62.9MB). Free memory was 68.2MB in the beginning and 93.6MB in the end (delta: -25.5MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2022-11-18 21:01:00,056 INFO L158 Benchmark]: Boogie Procedure Inliner took 156.69ms. Allocated memory is still 176.2MB. Free memory was 93.6MB in the beginning and 85.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 21:01:00,056 INFO L158 Benchmark]: Boogie Preprocessor took 199.70ms. Allocated memory is still 176.2MB. Free memory was 85.3MB in the beginning and 120.1MB in the end (delta: -34.8MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2022-11-18 21:01:00,057 INFO L158 Benchmark]: RCFGBuilder took 1754.40ms. Allocated memory is still 176.2MB. Free memory was 120.1MB in the beginning and 73.4MB in the end (delta: 46.7MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2022-11-18 21:01:00,057 INFO L158 Benchmark]: TraceAbstraction took 97492.35ms. Allocated memory was 176.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 73.1MB in the beginning and 700.9MB in the end (delta: -627.8MB). Peak memory consumption was 896.8MB. Max. memory is 16.1GB. [2022-11-18 21:01:00,057 INFO L158 Benchmark]: Witness Printer took 226.16ms. Allocated memory is still 1.5GB. Free memory was 700.9MB in the beginning and 681.0MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-18 21:01:00,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 86.4MB in the beginning and 86.4MB in the end (delta: 25.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2299.31ms. Allocated memory was 113.2MB in the beginning and 176.2MB in the end (delta: 62.9MB). Free memory was 68.2MB in the beginning and 93.6MB in the end (delta: -25.5MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 156.69ms. Allocated memory is still 176.2MB. Free memory was 93.6MB in the beginning and 85.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 199.70ms. Allocated memory is still 176.2MB. Free memory was 85.3MB in the beginning and 120.1MB in the end (delta: -34.8MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1754.40ms. Allocated memory is still 176.2MB. Free memory was 120.1MB in the beginning and 73.4MB in the end (delta: 46.7MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. * TraceAbstraction took 97492.35ms. Allocated memory was 176.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 73.1MB in the beginning and 700.9MB in the end (delta: -627.8MB). Peak memory consumption was 896.8MB. Max. memory is 16.1GB. * Witness Printer took 226.16ms. Allocated memory is still 1.5GB. Free memory was 700.9MB in the beginning and 681.0MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 395 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 97.4s, OverallIterations: 25, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 26.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 51.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15470 SdHoareTripleChecker+Valid, 20.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14485 mSDsluCounter, 35046 SdHoareTripleChecker+Invalid, 16.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23736 mSDsCounter, 5356 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13555 IncrementalHoareTripleChecker+Invalid, 18911 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5356 mSolverCounterUnsat, 11310 mSDtfsCounter, 13555 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1733 GetRequests, 1569 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4225occurred in iteration=20, InterpolantAutomatonStates: 163, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 25 MinimizatonAttempts, 14026 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 156 LocationsWithAnnotation, 12354 PreInvPairs, 12693 NumberOfFragments, 1640 HoareAnnotationTreeSize, 12354 FomulaSimplifications, 1175872 FormulaSimplificationTreeSizeReduction, 42.3s HoareSimplificationTime, 156 FomulaSimplificationsInter, 531613 FormulaSimplificationTreeSizeReductionInter, 8.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 3147 NumberOfCodeBlocks, 3147 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 3426 ConstructedInterpolants, 0 QuantifiedInterpolants, 5775 SizeOfPredicates, 4 NumberOfNonLiveVariables, 10932 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 41 InterpolantComputations, 21 PerfectInterpolantSequences, 1487/1608 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 7595]: Loop Invariant Derived loop invariant: i == 0 || (1 <= i && i < 2147483646) - InvariantResult [Line: 7533]: Loop Invariant Derived loop invariant: (((((!(ldv_retval_1 == 0) || (i <= 2147483646 && 1 <= i)) || !(ref_cnt == 0)) || i == 0) || !(ldv_state_variable_1 == 1)) || !(ldv_state_variable_0 == 3)) && ((((((!(ldv_retval_1 == 0) || !(ldv_state_variable_1 == 2)) || (i <= 2147483646 && 1 <= i)) || !(1 <= ref_cnt)) || i == 0) || !(ldv_state_variable_0 == 3)) || !(ref_cnt <= 1)) - InvariantResult [Line: 8169]: Loop Invariant Derived loop invariant: (ldv_retval_1 == 0 && ldv_state_variable_1 == 0) && ref_cnt == 0 - InvariantResult [Line: 8346]: Loop Invariant Derived loop invariant: ((((((!(ldv_retval_1 == 0) || !(ldv_state_variable_1 == 2)) || !(1 <= ref_cnt)) || (1 <= i && i < 2147483646)) || i == 0) || !(ldv_state_variable_0 == 3)) || !(ref_cnt <= 1)) && (((((!(ldv_retval_1 == 0) || !(ref_cnt == 0)) || (1 <= i && i < 2147483646)) || i == 0) || !(ldv_state_variable_1 == 1)) || !(ldv_state_variable_0 == 3)) - InvariantResult [Line: 8212]: Loop Invariant Derived loop invariant: ((((((!(ldv_retval_1 == 0) || !(ldv_state_variable_1 == 2)) || !(1 <= ref_cnt)) || (1 <= i && i < 2147483646)) || i == 0) || !(ldv_state_variable_0 == 3)) || !(ref_cnt <= 1)) && (((((!(ldv_retval_1 == 0) || !(ref_cnt == 0)) || (1 <= i && i < 2147483646)) || i == 0) || !(ldv_state_variable_1 == 1)) || !(ldv_state_variable_0 == 3)) - InvariantResult [Line: 7456]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8258]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8254]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8264]: Loop Invariant Derived loop invariant: i == 0 || (1 <= i && i < 2147483646) - InvariantResult [Line: 6932]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7118]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6813]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6448]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6373]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7533]: Loop Invariant Derived loop invariant: (((((!(ldv_retval_1 == 0) || !(ldv_state_variable_1 == 2)) || (i <= 2147483646 && 1 <= i)) || !(1 <= ref_cnt)) || !(ldv_state_variable_0 == 3)) || !(ref_cnt <= 1)) && ((((!(ldv_retval_1 == 0) || (i <= 2147483646 && 1 <= i)) || !(ref_cnt == 0)) || !(ldv_state_variable_1 == 1)) || !(ldv_state_variable_0 == 3)) - InvariantResult [Line: 8287]: Loop Invariant Derived loop invariant: (((ldv_retval_1 == 0 && ldv_state_variable_1 == 2) && 1 <= ref_cnt) && ldv_state_variable_0 == 3) && ref_cnt <= 1 - InvariantResult [Line: 7051]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7454]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6920]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6880]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6866]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6818]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7649]: Loop Invariant Derived loop invariant: ((((ldv_state_variable_0 == 1 && ref_cnt <= 0) && ldv_retval_1 == 0) && 0 <= ref_cnt) && ldv_state_variable_1 == 1) || (((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ldv_state_variable_1 == 0) && ref_cnt == 0) - InvariantResult [Line: 7118]: Loop Invariant Derived loop invariant: (((((ldv_retval_1 == 0 && ldv_state_variable_1 == 0) && ref_cnt == 0) && ldv_state_variable_0 == 3) || (((ldv_retval_1 == 0 && ldv_state_variable_1 == 1) && ref_cnt == 0) && ldv_state_variable_0 == 3)) || (((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ldv_state_variable_1 == 0) && ref_cnt == 0)) || ((((ldv_retval_1 == 0 && ldv_state_variable_1 == 2) && 1 <= ref_cnt) && ldv_state_variable_0 == 3) && ref_cnt <= 1) - InvariantResult [Line: 8277]: Loop Invariant Derived loop invariant: ((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ldv_state_variable_1 == 0) && ref_cnt == 0 - InvariantResult [Line: 8224]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7102]: Loop Invariant Derived loop invariant: ldv_state_variable_1 == 0 - InvariantResult [Line: 7647]: Loop Invariant Derived loop invariant: ((((ldv_state_variable_0 == 1 && ref_cnt <= 0) && ldv_retval_1 == 0) && 0 <= ref_cnt) && ldv_state_variable_1 == 1) || (((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ldv_state_variable_1 == 0) && ref_cnt == 0) - InvariantResult [Line: 7649]: Loop Invariant Derived loop invariant: ((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ldv_state_variable_1 == 1) && ref_cnt == 0 - InvariantResult [Line: 6410]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7614]: Loop Invariant Derived loop invariant: (((!(ldv_state_variable_1 == 0) || (i <= 2147483646 && 1 <= i)) || !(ldv_retval_1 == 0)) || !(ref_cnt == 0)) || !(ldv_state_variable_0 == 1) - InvariantResult [Line: 7115]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7048]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7821]: Loop Invariant Derived loop invariant: ldv_state_variable_1 == 0 - InvariantResult [Line: 7614]: Loop Invariant [2022-11-18 21:01:00,076 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:01:00,077 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:01:00,077 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 21:01:00,077 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 21:01:00,077 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:01:00,078 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 21:01:00,078 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-18 21:01:00,078 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((!(ldv_state_variable_1 == 0) || (i <= 2147483646 && 1 <= i)) || !(ldv_retval_1 == 0)) || !(ref_cnt == 0)) || (((unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && i == 0)) || !(ldv_state_variable_0 == 1) - InvariantResult [Line: 7485]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7257]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7075]: Loop Invariant Derived loop invariant: (((((ldv_state_variable_0 == 1 && ref_cnt <= 0) && ldv_retval_1 == 0) && 0 <= ref_cnt) && ldv_state_variable_1 == 1) || (ldv_state_variable_0 == 1 && err + 12 <= 0)) || (((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ldv_state_variable_1 == 0) && ref_cnt == 0) - InvariantResult [Line: 8205]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8318]: Loop Invariant Derived loop invariant: (((ldv_retval_1 == 0 && ldv_state_variable_1 == 2) && 1 <= ref_cnt) && ldv_state_variable_0 == 3) && ref_cnt <= 1 - InvariantResult [Line: 7005]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7614]: Loop Invariant Derived loop invariant: ((((!(ldv_state_variable_1 == 0) || !(ldv_retval_1 == 0)) || !(ref_cnt == 0)) || (1 <= i && i < 2147483646)) || !(ldv_state_variable_0 == 1)) || i == 0 - InvariantResult [Line: 8304]: Loop Invariant Derived loop invariant: (ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ref_cnt == 0 - InvariantResult [Line: 7831]: Loop Invariant Derived loop invariant: ((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ldv_state_variable_1 == 1) && ref_cnt == 0 - InvariantResult [Line: 7593]: Loop Invariant Derived loop invariant: i <= 2147483646 && 1 <= i - InvariantResult [Line: 7485]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7533]: Loop Invariant Derived loop invariant: ((((((!(ldv_retval_1 == 0) || !(ldv_state_variable_1 == 2)) || !(1 <= ref_cnt)) || (1 <= i && i < 2147483646)) || i == 0) || !(ldv_state_variable_0 == 3)) || !(ref_cnt <= 1)) && (((((!(ldv_retval_1 == 0) || !(ref_cnt == 0)) || (1 <= i && i < 2147483646)) || i == 0) || !(ldv_state_variable_1 == 1)) || !(ldv_state_variable_0 == 3)) - InvariantResult [Line: 7638]: Loop Invariant Derived loop invariant: ldv_state_variable_1 == 0 - InvariantResult [Line: 8271]: Loop Invariant Derived loop invariant: ((((!(ldv_state_variable_1 == 0) || !(ldv_retval_1 == 0)) || !(ref_cnt == 0)) || (1 <= i && i < 2147483646)) || !(ldv_state_variable_0 == 1)) || i == 0 - InvariantResult [Line: 8296]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6842]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8178]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6797]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8238]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7002]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7070]: Loop Invariant Derived loop invariant: (((ldv_state_variable_0 == 1 && \result + 12 <= 0) || ((((ldv_state_variable_0 == 1 && ref_cnt <= 0) && ldv_retval_1 == 0) && 0 <= ref_cnt) && ldv_state_variable_1 == 1)) || (((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ldv_state_variable_1 == 0) && ref_cnt == 0)) || (((((ldv_state_variable_0 == 1 && \result == 0) && ldv_retval_1 == 0) && ldv_state_variable_1 == 2) && 1 <= ref_cnt) && ref_cnt <= 1) - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7687]: Loop Invariant Derived loop invariant: (((ldv_retval_1 == 0 && ldv_state_variable_1 == 1) && ref_cnt == 0) && ldv_state_variable_0 == 3) || ((((ldv_retval_1 == 0 && ldv_state_variable_1 == 2) && 1 <= ref_cnt) && ldv_state_variable_0 == 3) && ref_cnt <= 1) - InvariantResult [Line: 7075]: Loop Invariant Derived loop invariant: ((((ldv_state_variable_0 == 1 && ref_cnt <= 0) && ldv_retval_1 == 0) && 0 <= ref_cnt) && ldv_state_variable_1 == 1) || (((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ldv_state_variable_1 == 0) && ref_cnt == 0) - InvariantResult [Line: 7595]: Loop Invariant Derived loop invariant: i == 0 || (i <= 2147483646 && 1 <= i) - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6561]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8300]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8339]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 21:01:00,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec5a7c31-543f-474c-b3cb-311d92707b3f/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: TRUE