./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 b5237d83 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_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/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_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a --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-b5237d8 [2022-11-21 17:09:56,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:09:56,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:09:56,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:09:56,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:09:56,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:09:56,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:09:56,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:09:56,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:09:56,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:09:56,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:09:56,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:09:56,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:09:56,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:09:56,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:09:56,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:09:56,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:09:56,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:09:56,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:09:56,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:09:56,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:09:56,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:09:56,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:09:56,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:09:56,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:09:56,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:09:56,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:09:56,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:09:56,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:09:56,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:09:56,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:09:56,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:09:56,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:09:56,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:09:56,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:09:56,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:09:56,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:09:56,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:09:56,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:09:56,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:09:56,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:09:56,762 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-21 17:09:56,811 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:09:56,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:09:56,812 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:09:56,812 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:09:56,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:09:56,814 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:09:56,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:09:56,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:09:56,815 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:09:56,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:09:56,816 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:09:56,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:09:56,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:09:56,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:09:56,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:09:56,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:09:56,818 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 17:09:56,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:09:56,818 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:09:56,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:09:56,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:09:56,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:09:56,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:09:56,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:09:56,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:09:56,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:09:56,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:09:56,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:09:56,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:09:56,821 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:09:56,821 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:09:56,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:09:56,822 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_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 [2022-11-21 17:09:57,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:09:57,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:09:57,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:09:57,148 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:09:57,148 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:09:57,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-21 17:10:00,243 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:10:00,886 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:10:00,886 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-21 17:10:00,934 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/data/afd9de9c8/f1b22c9868024d86997a439e1c5df2ad/FLAGac238599b [2022-11-21 17:10:00,955 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/data/afd9de9c8/f1b22c9868024d86997a439e1c5df2ad [2022-11-21 17:10:00,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:10:00,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:10:00,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:10:00,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:10:00,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:10:00,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:10:00" (1/1) ... [2022-11-21 17:10:00,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec81ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:00, skipping insertion in model container [2022-11-21 17:10:00,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:10:00" (1/1) ... [2022-11-21 17:10:00,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:10:01,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:10:02,479 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2022-11-21 17:10:02,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:10:02,612 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:10:02,875 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2022-11-21 17:10:02,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:10:03,000 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:10:03,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:03 WrapperNode [2022-11-21 17:10:03,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:10:03,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:10:03,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:10:03,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:10:03,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:03" (1/1) ... [2022-11-21 17:10:03,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:03" (1/1) ... [2022-11-21 17:10:03,156 INFO L138 Inliner]: procedures = 188, calls = 583, calls flagged for inlining = 72, calls inlined = 47, statements flattened = 1212 [2022-11-21 17:10:03,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:10:03,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:10:03,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:10:03,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:10:03,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:03" (1/1) ... [2022-11-21 17:10:03,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:03" (1/1) ... [2022-11-21 17:10:03,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:03" (1/1) ... [2022-11-21 17:10:03,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:03" (1/1) ... [2022-11-21 17:10:03,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:03" (1/1) ... [2022-11-21 17:10:03,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:03" (1/1) ... [2022-11-21 17:10:03,219 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:03" (1/1) ... [2022-11-21 17:10:03,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:03" (1/1) ... [2022-11-21 17:10:03,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:10:03,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:10:03,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:10:03,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:10:03,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:03" (1/1) ... [2022-11-21 17:10:03,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:10:03,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:03,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:10:03,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:10:03,351 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-21 17:10:03,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-21 17:10:03,352 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2022-11-21 17:10:03,352 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2022-11-21 17:10:03,352 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2022-11-21 17:10:03,352 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2022-11-21 17:10:03,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:10:03,353 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2022-11-21 17:10:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2022-11-21 17:10:03,356 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2022-11-21 17:10:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2022-11-21 17:10:03,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 17:10:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 17:10:03,356 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-21 17:10:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-21 17:10:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2022-11-21 17:10:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2022-11-21 17:10:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:10:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 17:10:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 17:10:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 17:10:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 17:10:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2022-11-21 17:10:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2022-11-21 17:10:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2022-11-21 17:10:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2022-11-21 17:10:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 17:10:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2022-11-21 17:10:03,359 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2022-11-21 17:10:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-21 17:10:03,360 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-21 17:10:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:10:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2022-11-21 17:10:03,361 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2022-11-21 17:10:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:10:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 17:10:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2022-11-21 17:10:03,363 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2022-11-21 17:10:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-11-21 17:10:03,363 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-11-21 17:10:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-21 17:10:03,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-21 17:10:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 17:10:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-21 17:10:03,364 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-21 17:10:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-21 17:10:03,364 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-21 17:10:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:10:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 17:10:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2022-11-21 17:10:03,365 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2022-11-21 17:10:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2022-11-21 17:10:03,366 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2022-11-21 17:10:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2022-11-21 17:10:03,366 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2022-11-21 17:10:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-21 17:10:03,367 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-21 17:10:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2022-11-21 17:10:03,368 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2022-11-21 17:10:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2022-11-21 17:10:03,369 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2022-11-21 17:10:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-21 17:10:03,369 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-21 17:10:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2022-11-21 17:10:03,370 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2022-11-21 17:10:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2022-11-21 17:10:03,370 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2022-11-21 17:10:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:10:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-21 17:10:03,370 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-21 17:10:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:10:03,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:10:03,808 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:10:03,811 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:10:04,888 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:10:04,915 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:10:04,916 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:10:04,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:10:04 BoogieIcfgContainer [2022-11-21 17:10:04,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:10:04,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:10:04,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:10:04,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:10:04,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:10:00" (1/3) ... [2022-11-21 17:10:04,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b93c112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:10:04, skipping insertion in model container [2022-11-21 17:10:04,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:03" (2/3) ... [2022-11-21 17:10:04,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b93c112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:10:04, skipping insertion in model container [2022-11-21 17:10:04,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:10:04" (3/3) ... [2022-11-21 17:10:04,937 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-21 17:10:04,961 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:10:04,962 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-21 17:10:05,044 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:10:05,052 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;@1549b10e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:10:05,052 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-21 17:10:05,063 INFO L276 IsEmpty]: Start isEmpty. Operand has 393 states, 284 states have (on average 1.3345070422535212) internal successors, (379), 301 states have internal predecessors, (379), 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) [2022-11-21 17:10:05,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 17:10:05,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:05,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:10:05,075 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)] === [2022-11-21 17:10:05,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:05,080 INFO L85 PathProgramCache]: Analyzing trace with hash -359266689, now seen corresponding path program 1 times [2022-11-21 17:10:05,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:05,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37966182] [2022-11-21 17:10:05,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:05,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:05,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:05,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:05,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37966182] [2022-11-21 17:10:05,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37966182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:05,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:05,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:10:05,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104181094] [2022-11-21 17:10:05,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:05,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:10:05,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:05,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:10:05,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:10:05,633 INFO L87 Difference]: Start difference. First operand has 393 states, 284 states have (on average 1.3345070422535212) internal successors, (379), 301 states have internal predecessors, (379), 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) [2022-11-21 17:10:05,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:05,885 INFO L93 Difference]: Finished difference Result 879 states and 1166 transitions. [2022-11-21 17:10:05,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:10:05,888 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 [2022-11-21 17:10:05,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:05,907 INFO L225 Difference]: With dead ends: 879 [2022-11-21 17:10:05,908 INFO L226 Difference]: Without dead ends: 457 [2022-11-21 17:10:05,920 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 [2022-11-21 17:10:05,928 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 125 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 987 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 [2022-11-21 17:10:05,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 987 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:10:05,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-11-21 17:10:06,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 452. [2022-11-21 17:10:06,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 331 states have (on average 1.338368580060423) internal successors, (443), 347 states have internal predecessors, (443), 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) [2022-11-21 17:10:06,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 591 transitions. [2022-11-21 17:10:06,030 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 591 transitions. Word has length 15 [2022-11-21 17:10:06,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:06,030 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 591 transitions. [2022-11-21 17:10:06,031 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) [2022-11-21 17:10:06,031 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 591 transitions. [2022-11-21 17:10:06,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 17:10:06,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:06,033 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] [2022-11-21 17:10:06,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:10:06,034 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)] === [2022-11-21 17:10:06,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:06,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1016458873, now seen corresponding path program 1 times [2022-11-21 17:10:06,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:06,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126589454] [2022-11-21 17:10:06,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:06,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-21 17:10:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:06,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:06,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:06,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126589454] [2022-11-21 17:10:06,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126589454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:06,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:06,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:10:06,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134055325] [2022-11-21 17:10:06,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:06,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:10:06,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:06,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:10:06,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:10:06,203 INFO L87 Difference]: Start difference. First operand 452 states and 591 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) [2022-11-21 17:10:06,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:06,296 INFO L93 Difference]: Finished difference Result 1246 states and 1630 transitions. [2022-11-21 17:10:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:10:06,297 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 [2022-11-21 17:10:06,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:06,303 INFO L225 Difference]: With dead ends: 1246 [2022-11-21 17:10:06,303 INFO L226 Difference]: Without dead ends: 797 [2022-11-21 17:10:06,305 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 [2022-11-21 17:10:06,307 INFO L413 NwaCegarLoop]: 850 mSDtfsCounter, 468 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1267 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 [2022-11-21 17:10:06,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1267 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:10:06,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2022-11-21 17:10:06,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 774. [2022-11-21 17:10:06,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 578 states have (on average 1.333910034602076) internal successors, (771), 595 states have internal predecessors, (771), 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) [2022-11-21 17:10:06,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1018 transitions. [2022-11-21 17:10:06,384 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1018 transitions. Word has length 20 [2022-11-21 17:10:06,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:06,385 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 1018 transitions. [2022-11-21 17:10:06,385 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) [2022-11-21 17:10:06,385 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1018 transitions. [2022-11-21 17:10:06,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-21 17:10:06,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:06,390 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] [2022-11-21 17:10:06,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:10:06,393 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)] === [2022-11-21 17:10:06,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:06,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1158464439, now seen corresponding path program 1 times [2022-11-21 17:10:06,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:06,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179412485] [2022-11-21 17:10:06,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:06,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:06,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:06,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 17:10:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:06,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:10:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:06,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:06,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:06,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179412485] [2022-11-21 17:10:06,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179412485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:06,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:06,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:10:06,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703247526] [2022-11-21 17:10:06,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:06,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:10:06,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:06,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:10:06,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:10:06,679 INFO L87 Difference]: Start difference. First operand 774 states and 1018 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) [2022-11-21 17:10:07,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:07,398 INFO L93 Difference]: Finished difference Result 1815 states and 2454 transitions. [2022-11-21 17:10:07,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:10:07,399 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 [2022-11-21 17:10:07,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:07,409 INFO L225 Difference]: With dead ends: 1815 [2022-11-21 17:10:07,409 INFO L226 Difference]: Without dead ends: 1044 [2022-11-21 17:10:07,412 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 [2022-11-21 17:10:07,415 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 250 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:07,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 878 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:10:07,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-11-21 17:10:07,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 786. [2022-11-21 17:10:07,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 590 states have (on average 1.3305084745762712) internal successors, (785), 607 states have internal predecessors, (785), 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) [2022-11-21 17:10:07,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1032 transitions. [2022-11-21 17:10:07,503 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1032 transitions. Word has length 36 [2022-11-21 17:10:07,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:07,503 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1032 transitions. [2022-11-21 17:10:07,504 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) [2022-11-21 17:10:07,504 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1032 transitions. [2022-11-21 17:10:07,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-21 17:10:07,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:07,509 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] [2022-11-21 17:10:07,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:10:07,509 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)] === [2022-11-21 17:10:07,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:07,511 INFO L85 PathProgramCache]: Analyzing trace with hash 256740897, now seen corresponding path program 1 times [2022-11-21 17:10:07,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:07,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151387851] [2022-11-21 17:10:07,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:07,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:07,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:07,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-21 17:10:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:07,690 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:07,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:07,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151387851] [2022-11-21 17:10:07,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151387851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:07,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:07,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:10:07,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188308315] [2022-11-21 17:10:07,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:07,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:10:07,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:07,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:10:07,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:10:07,693 INFO L87 Difference]: Start difference. First operand 786 states and 1032 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) [2022-11-21 17:10:08,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:08,601 INFO L93 Difference]: Finished difference Result 1829 states and 2460 transitions. [2022-11-21 17:10:08,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:10:08,602 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 [2022-11-21 17:10:08,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:08,607 INFO L225 Difference]: With dead ends: 1829 [2022-11-21 17:10:08,608 INFO L226 Difference]: Without dead ends: 1040 [2022-11-21 17:10:08,612 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 [2022-11-21 17:10:08,614 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 250 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:08,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 1199 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-21 17:10:08,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-11-21 17:10:08,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 786. [2022-11-21 17:10:08,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 590 states have (on average 1.3271186440677967) internal successors, (783), 607 states have internal predecessors, (783), 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) [2022-11-21 17:10:08,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1030 transitions. [2022-11-21 17:10:08,666 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1030 transitions. Word has length 38 [2022-11-21 17:10:08,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:08,667 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1030 transitions. [2022-11-21 17:10:08,667 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) [2022-11-21 17:10:08,667 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1030 transitions. [2022-11-21 17:10:08,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-21 17:10:08,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:08,668 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] [2022-11-21 17:10:08,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:10:08,669 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)] === [2022-11-21 17:10:08,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:08,669 INFO L85 PathProgramCache]: Analyzing trace with hash 880320095, now seen corresponding path program 1 times [2022-11-21 17:10:08,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:08,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18344598] [2022-11-21 17:10:08,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:08,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:08,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:08,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 17:10:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:10:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:08,925 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:08,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:08,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18344598] [2022-11-21 17:10:08,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18344598] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:10:08,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893837336] [2022-11-21 17:10:08,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:08,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:08,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:08,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:10:08,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 17:10:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:09,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:10:09,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:10:09,352 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:09,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:10:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:09,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893837336] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:10:09,435 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:10:09,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-11-21 17:10:09,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259752975] [2022-11-21 17:10:09,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:10:09,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 17:10:09,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:09,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 17:10:09,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:10:09,437 INFO L87 Difference]: Start difference. First operand 786 states and 1030 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) [2022-11-21 17:10:10,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:10,283 INFO L93 Difference]: Finished difference Result 1074 states and 1473 transitions. [2022-11-21 17:10:10,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 17:10:10,283 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 [2022-11-21 17:10:10,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:10,289 INFO L225 Difference]: With dead ends: 1074 [2022-11-21 17:10:10,289 INFO L226 Difference]: Without dead ends: 1073 [2022-11-21 17:10:10,290 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 [2022-11-21 17:10:10,291 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 278 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:10,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1174 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-21 17:10:10,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-11-21 17:10:10,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 785. [2022-11-21 17:10:10,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 590 states have (on average 1.323728813559322) internal successors, (781), 606 states have internal predecessors, (781), 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) [2022-11-21 17:10:10,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1028 transitions. [2022-11-21 17:10:10,370 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1028 transitions. Word has length 42 [2022-11-21 17:10:10,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:10,372 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 1028 transitions. [2022-11-21 17:10:10,372 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) [2022-11-21 17:10:10,372 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1028 transitions. [2022-11-21 17:10:10,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-21 17:10:10,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:10,376 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] [2022-11-21 17:10:10,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:10:10,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:10,585 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)] === [2022-11-21 17:10:10,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:10,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1520119564, now seen corresponding path program 1 times [2022-11-21 17:10:10,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:10,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309668869] [2022-11-21 17:10:10,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:10,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 17:10:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:10,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:10:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:10,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:10,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:10,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309668869] [2022-11-21 17:10:10,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309668869] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:10:10,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320007217] [2022-11-21 17:10:10,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:10,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:10,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:10,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:10:10,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 17:10:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:11,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:10:11,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:10:11,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:10:11,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:10:11,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320007217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:11,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:10:11,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-21 17:10:11,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993931899] [2022-11-21 17:10:11,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:11,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:10:11,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:11,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:10:11,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:10:11,186 INFO L87 Difference]: Start difference. First operand 785 states and 1028 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) [2022-11-21 17:10:11,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:11,235 INFO L93 Difference]: Finished difference Result 789 states and 1034 transitions. [2022-11-21 17:10:11,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:10:11,236 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 [2022-11-21 17:10:11,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:11,240 INFO L225 Difference]: With dead ends: 789 [2022-11-21 17:10:11,240 INFO L226 Difference]: Without dead ends: 788 [2022-11-21 17:10:11,241 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 [2022-11-21 17:10:11,241 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 6 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1434 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 [2022-11-21 17:10:11,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1434 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:10:11,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2022-11-21 17:10:11,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 774. [2022-11-21 17:10:11,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 580 states have (on average 1.3224137931034483) internal successors, (767), 595 states have internal predecessors, (767), 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) [2022-11-21 17:10:11,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1014 transitions. [2022-11-21 17:10:11,280 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1014 transitions. Word has length 43 [2022-11-21 17:10:11,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:11,280 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 1014 transitions. [2022-11-21 17:10:11,280 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) [2022-11-21 17:10:11,280 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1014 transitions. [2022-11-21 17:10:11,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-21 17:10:11,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:11,281 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] [2022-11-21 17:10:11,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:10:11,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:11,489 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)] === [2022-11-21 17:10:11,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:11,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1407118541, now seen corresponding path program 1 times [2022-11-21 17:10:11,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:11,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676367233] [2022-11-21 17:10:11,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:11,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:11,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:11,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:11,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-21 17:10:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:11,613 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 17:10:11,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:11,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676367233] [2022-11-21 17:10:11,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676367233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:11,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:11,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:10:11,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748674805] [2022-11-21 17:10:11,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:11,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:10:11,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:11,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:10:11,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:10:11,615 INFO L87 Difference]: Start difference. First operand 774 states and 1014 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) [2022-11-21 17:10:12,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:12,322 INFO L93 Difference]: Finished difference Result 1814 states and 2444 transitions. [2022-11-21 17:10:12,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:10:12,323 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 [2022-11-21 17:10:12,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:12,328 INFO L225 Difference]: With dead ends: 1814 [2022-11-21 17:10:12,328 INFO L226 Difference]: Without dead ends: 1043 [2022-11-21 17:10:12,331 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 [2022-11-21 17:10:12,332 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 253 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:12,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 895 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:10:12,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-11-21 17:10:12,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 789. [2022-11-21 17:10:12,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 595 states have (on average 1.3142857142857143) internal successors, (782), 610 states have internal predecessors, (782), 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) [2022-11-21 17:10:12,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1029 transitions. [2022-11-21 17:10:12,381 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1029 transitions. Word has length 44 [2022-11-21 17:10:12,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:12,383 INFO L495 AbstractCegarLoop]: Abstraction has 789 states and 1029 transitions. [2022-11-21 17:10:12,383 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) [2022-11-21 17:10:12,383 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1029 transitions. [2022-11-21 17:10:12,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-21 17:10:12,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:12,385 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] [2022-11-21 17:10:12,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:10:12,385 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)] === [2022-11-21 17:10:12,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:12,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2132982267, now seen corresponding path program 1 times [2022-11-21 17:10:12,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:12,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942983051] [2022-11-21 17:10:12,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:12,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:12,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:12,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:12,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-21 17:10:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 17:10:12,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:12,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942983051] [2022-11-21 17:10:12,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942983051] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:10:12,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117766326] [2022-11-21 17:10:12,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:12,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:12,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:12,557 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:10:12,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 17:10:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:12,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:10:12,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:10:12,931 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 17:10:12,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:10:12,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117766326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:12,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:10:12,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2022-11-21 17:10:12,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265683391] [2022-11-21 17:10:12,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:12,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:10:12,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:12,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:10:12,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:10:12,934 INFO L87 Difference]: Start difference. First operand 789 states and 1029 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) [2022-11-21 17:10:13,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:13,022 INFO L93 Difference]: Finished difference Result 1585 states and 2069 transitions. [2022-11-21 17:10:13,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:10:13,023 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 [2022-11-21 17:10:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:13,027 INFO L225 Difference]: With dead ends: 1585 [2022-11-21 17:10:13,027 INFO L226 Difference]: Without dead ends: 789 [2022-11-21 17:10:13,031 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 [2022-11-21 17:10:13,032 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 6 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1916 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 [2022-11-21 17:10:13,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1916 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:10:13,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-11-21 17:10:13,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2022-11-21 17:10:13,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 595 states have (on average 1.3109243697478992) internal successors, (780), 608 states have internal predecessors, (780), 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) [2022-11-21 17:10:13,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1027 transitions. [2022-11-21 17:10:13,074 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1027 transitions. Word has length 49 [2022-11-21 17:10:13,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:13,075 INFO L495 AbstractCegarLoop]: Abstraction has 789 states and 1027 transitions. [2022-11-21 17:10:13,075 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) [2022-11-21 17:10:13,075 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1027 transitions. [2022-11-21 17:10:13,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-21 17:10:13,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:13,076 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] [2022-11-21 17:10:13,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-21 17:10:13,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-21 17:10:13,283 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)] === [2022-11-21 17:10:13,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:13,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1931354537, now seen corresponding path program 1 times [2022-11-21 17:10:13,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:13,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164712881] [2022-11-21 17:10:13,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:13,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:13,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:13,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:13,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:13,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:13,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 17:10:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:13,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:13,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:13,566 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-21 17:10:13,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:13,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164712881] [2022-11-21 17:10:13,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164712881] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:10:13,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606295591] [2022-11-21 17:10:13,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:13,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:13,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:13,569 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:10:13,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 17:10:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:13,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:10:13,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:10:13,951 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 17:10:13,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:10:13,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606295591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:13,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:10:13,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-21 17:10:13,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621957714] [2022-11-21 17:10:13,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:13,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:10:13,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:13,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:10:13,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:10:13,953 INFO L87 Difference]: Start difference. First operand 789 states and 1027 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) [2022-11-21 17:10:14,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:14,028 INFO L93 Difference]: Finished difference Result 1749 states and 2325 transitions. [2022-11-21 17:10:14,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:10:14,029 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 [2022-11-21 17:10:14,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:14,034 INFO L225 Difference]: With dead ends: 1749 [2022-11-21 17:10:14,034 INFO L226 Difference]: Without dead ends: 963 [2022-11-21 17:10:14,036 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 [2022-11-21 17:10:14,037 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 89 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 2204 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 [2022-11-21 17:10:14,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 2204 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:10:14,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-11-21 17:10:14,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 797. [2022-11-21 17:10:14,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 601 states have (on average 1.307820299500832) internal successors, (786), 614 states have internal predecessors, (786), 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) [2022-11-21 17:10:14,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1037 transitions. [2022-11-21 17:10:14,080 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1037 transitions. Word has length 70 [2022-11-21 17:10:14,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:14,080 INFO L495 AbstractCegarLoop]: Abstraction has 797 states and 1037 transitions. [2022-11-21 17:10:14,081 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) [2022-11-21 17:10:14,081 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1037 transitions. [2022-11-21 17:10:14,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-21 17:10:14,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:14,082 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] [2022-11-21 17:10:14,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 17:10:14,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-21 17:10:14,293 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)] === [2022-11-21 17:10:14,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:14,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1298059425, now seen corresponding path program 1 times [2022-11-21 17:10:14,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:14,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469255695] [2022-11-21 17:10:14,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:14,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:14,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:14,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:14,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:14,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:14,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:10:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:14,468 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 17:10:14,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:14,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469255695] [2022-11-21 17:10:14,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469255695] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:10:14,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031917020] [2022-11-21 17:10:14,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:14,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:14,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:14,470 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:10:14,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 17:10:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:14,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 17:10:14,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:10:14,972 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 17:10:14,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:10:14,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031917020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:14,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:10:14,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-11-21 17:10:14,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710477929] [2022-11-21 17:10:14,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:14,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:10:14,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:14,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:10:14,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:10:14,974 INFO L87 Difference]: Start difference. First operand 797 states and 1037 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) [2022-11-21 17:10:15,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:15,149 INFO L93 Difference]: Finished difference Result 1757 states and 2333 transitions. [2022-11-21 17:10:15,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:10:15,149 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 [2022-11-21 17:10:15,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:15,154 INFO L225 Difference]: With dead ends: 1757 [2022-11-21 17:10:15,154 INFO L226 Difference]: Without dead ends: 963 [2022-11-21 17:10:15,157 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 [2022-11-21 17:10:15,158 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 257 mSDsluCounter, 2624 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 3209 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 [2022-11-21 17:10:15,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 3209 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:10:15,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-11-21 17:10:15,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 801. [2022-11-21 17:10:15,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 605 states have (on average 1.3057851239669422) internal successors, (790), 618 states have internal predecessors, (790), 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) [2022-11-21 17:10:15,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1041 transitions. [2022-11-21 17:10:15,206 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1041 transitions. Word has length 66 [2022-11-21 17:10:15,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:15,207 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1041 transitions. [2022-11-21 17:10:15,207 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) [2022-11-21 17:10:15,207 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1041 transitions. [2022-11-21 17:10:15,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-21 17:10:15,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:15,208 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] [2022-11-21 17:10:15,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 17:10:15,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:15,415 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)] === [2022-11-21 17:10:15,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:15,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1526621756, now seen corresponding path program 1 times [2022-11-21 17:10:15,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:15,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570168625] [2022-11-21 17:10:15,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:15,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:15,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:15,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:15,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:15,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:15,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:15,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:15,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:15,643 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-21 17:10:15,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:15,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570168625] [2022-11-21 17:10:15,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570168625] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:10:15,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243406106] [2022-11-21 17:10:15,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:15,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:15,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:15,646 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:10:15,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 17:10:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:15,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:10:15,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:10:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-21 17:10:16,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:10:16,111 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-21 17:10:16,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243406106] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:10:16,112 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:10:16,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-11-21 17:10:16,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968638127] [2022-11-21 17:10:16,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:10:16,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 17:10:16,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:16,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 17:10:16,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:10:16,113 INFO L87 Difference]: Start difference. First operand 801 states and 1041 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) [2022-11-21 17:10:17,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:17,430 INFO L93 Difference]: Finished difference Result 1101 states and 1500 transitions. [2022-11-21 17:10:17,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:10:17,431 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 [2022-11-21 17:10:17,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:17,437 INFO L225 Difference]: With dead ends: 1101 [2022-11-21 17:10:17,438 INFO L226 Difference]: Without dead ends: 1100 [2022-11-21 17:10:17,439 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 [2022-11-21 17:10:17,439 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 400 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:17,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 1531 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-21 17:10:17,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-11-21 17:10:17,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 800. [2022-11-21 17:10:17,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 605 states have (on average 1.3008264462809918) internal successors, (787), 617 states have internal predecessors, (787), 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) [2022-11-21 17:10:17,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1038 transitions. [2022-11-21 17:10:17,503 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1038 transitions. Word has length 74 [2022-11-21 17:10:17,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:17,504 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 1038 transitions. [2022-11-21 17:10:17,504 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) [2022-11-21 17:10:17,504 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1038 transitions. [2022-11-21 17:10:17,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-21 17:10:17,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:17,505 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] [2022-11-21 17:10:17,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 17:10:17,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:17,713 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)] === [2022-11-21 17:10:17,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:17,714 INFO L85 PathProgramCache]: Analyzing trace with hash -80634132, now seen corresponding path program 1 times [2022-11-21 17:10:17,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:17,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962212137] [2022-11-21 17:10:17,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:17,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:17,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:17,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:17,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:17,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:17,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:17,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:17,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:17,931 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-21 17:10:17,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:17,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962212137] [2022-11-21 17:10:17,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962212137] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:10:17,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019271819] [2022-11-21 17:10:17,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:17,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:17,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:17,933 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:10:17,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 17:10:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:18,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:10:18,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:10:18,325 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-21 17:10:18,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:10:18,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019271819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:18,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:10:18,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-21 17:10:18,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860967101] [2022-11-21 17:10:18,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:18,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:10:18,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:18,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:10:18,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:10:18,328 INFO L87 Difference]: Start difference. First operand 800 states and 1038 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) [2022-11-21 17:10:18,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:18,381 INFO L93 Difference]: Finished difference Result 800 states and 1038 transitions. [2022-11-21 17:10:18,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:10:18,381 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 [2022-11-21 17:10:18,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:18,386 INFO L225 Difference]: With dead ends: 800 [2022-11-21 17:10:18,386 INFO L226 Difference]: Without dead ends: 779 [2022-11-21 17:10:18,387 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 [2022-11-21 17:10:18,387 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 2 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1421 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 [2022-11-21 17:10:18,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1421 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:10:18,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2022-11-21 17:10:18,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 771. [2022-11-21 17:10:18,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 582 states have (on average 1.302405498281787) internal successors, (758), 592 states have internal predecessors, (758), 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) [2022-11-21 17:10:18,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1004 transitions. [2022-11-21 17:10:18,434 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1004 transitions. Word has length 75 [2022-11-21 17:10:18,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:18,435 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1004 transitions. [2022-11-21 17:10:18,435 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) [2022-11-21 17:10:18,435 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1004 transitions. [2022-11-21 17:10:18,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-21 17:10:18,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:18,442 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] [2022-11-21 17:10:18,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 17:10:18,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-21 17:10:18,654 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)] === [2022-11-21 17:10:18,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:18,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1984686968, now seen corresponding path program 1 times [2022-11-21 17:10:18,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:18,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463120578] [2022-11-21 17:10:18,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:18,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:18,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:18,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:18,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:18,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:18,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:18,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:18,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:18,870 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-21 17:10:18,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:18,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463120578] [2022-11-21 17:10:18,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463120578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:18,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:18,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:10:18,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635670327] [2022-11-21 17:10:18,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:18,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:10:18,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:18,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:10:18,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:10:18,872 INFO L87 Difference]: Start difference. First operand 771 states and 1004 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) [2022-11-21 17:10:20,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:20,639 INFO L93 Difference]: Finished difference Result 2699 states and 3634 transitions. [2022-11-21 17:10:20,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:10:20,640 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 [2022-11-21 17:10:20,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:20,652 INFO L225 Difference]: With dead ends: 2699 [2022-11-21 17:10:20,652 INFO L226 Difference]: Without dead ends: 1931 [2022-11-21 17:10:20,656 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 [2022-11-21 17:10:20,657 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 941 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:20,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1211 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-21 17:10:20,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2022-11-21 17:10:20,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1390. [2022-11-21 17:10:20,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1049 states have (on average 1.2850333651096282) internal successors, (1348), 1063 states have internal predecessors, (1348), 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) [2022-11-21 17:10:20,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1792 transitions. [2022-11-21 17:10:20,751 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1792 transitions. Word has length 83 [2022-11-21 17:10:20,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:20,752 INFO L495 AbstractCegarLoop]: Abstraction has 1390 states and 1792 transitions. [2022-11-21 17:10:20,753 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) [2022-11-21 17:10:20,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1792 transitions. [2022-11-21 17:10:20,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-21 17:10:20,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:20,755 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] [2022-11-21 17:10:20,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 17:10:20,755 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 17:10:20,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:20,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1453053901, now seen corresponding path program 1 times [2022-11-21 17:10:20,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:20,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529326143] [2022-11-21 17:10:20,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:20,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:20,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:20,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:20,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:20,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:20,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:20,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:21,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:21,007 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-21 17:10:21,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:21,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529326143] [2022-11-21 17:10:21,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529326143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:21,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:21,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:10:21,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799304591] [2022-11-21 17:10:21,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:21,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:10:21,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:21,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:10:21,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:10:21,009 INFO L87 Difference]: Start difference. First operand 1390 states and 1792 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) [2022-11-21 17:10:21,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:21,980 INFO L93 Difference]: Finished difference Result 3351 states and 4481 transitions. [2022-11-21 17:10:21,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:10:21,981 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 [2022-11-21 17:10:21,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:21,991 INFO L225 Difference]: With dead ends: 3351 [2022-11-21 17:10:21,991 INFO L226 Difference]: Without dead ends: 1964 [2022-11-21 17:10:21,997 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 [2022-11-21 17:10:21,997 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 377 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:21,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 946 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-21 17:10:22,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1964 states. [2022-11-21 17:10:22,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1964 to 1418. [2022-11-21 17:10:22,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1077 states have (on average 1.2813370473537604) internal successors, (1380), 1091 states have internal predecessors, (1380), 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) [2022-11-21 17:10:22,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 1824 transitions. [2022-11-21 17:10:22,103 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 1824 transitions. Word has length 88 [2022-11-21 17:10:22,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:22,103 INFO L495 AbstractCegarLoop]: Abstraction has 1418 states and 1824 transitions. [2022-11-21 17:10:22,104 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) [2022-11-21 17:10:22,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 1824 transitions. [2022-11-21 17:10:22,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-21 17:10:22,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:22,105 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] [2022-11-21 17:10:22,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 17:10:22,106 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 17:10:22,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:22,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1918384877, now seen corresponding path program 1 times [2022-11-21 17:10:22,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:22,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790863071] [2022-11-21 17:10:22,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:22,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:22,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:22,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:22,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:22,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:22,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:22,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:22,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:10:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:22,399 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-21 17:10:22,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:22,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790863071] [2022-11-21 17:10:22,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790863071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:22,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:22,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:10:22,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101321334] [2022-11-21 17:10:22,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:22,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:10:22,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:22,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:10:22,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:10:22,402 INFO L87 Difference]: Start difference. First operand 1418 states and 1824 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) [2022-11-21 17:10:24,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:24,300 INFO L93 Difference]: Finished difference Result 2996 states and 4032 transitions. [2022-11-21 17:10:24,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:10:24,301 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 [2022-11-21 17:10:24,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:24,314 INFO L225 Difference]: With dead ends: 2996 [2022-11-21 17:10:24,315 INFO L226 Difference]: Without dead ends: 2994 [2022-11-21 17:10:24,317 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 [2022-11-21 17:10:24,317 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 1179 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:24,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 1187 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [535 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-21 17:10:24,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2022-11-21 17:10:24,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 2174. [2022-11-21 17:10:24,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 1656 states have (on average 1.2735507246376812) internal successors, (2109), 1675 states have internal predecessors, (2109), 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) [2022-11-21 17:10:24,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 2787 transitions. [2022-11-21 17:10:24,537 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 2787 transitions. Word has length 87 [2022-11-21 17:10:24,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:24,537 INFO L495 AbstractCegarLoop]: Abstraction has 2174 states and 2787 transitions. [2022-11-21 17:10:24,538 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) [2022-11-21 17:10:24,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 2787 transitions. [2022-11-21 17:10:24,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-21 17:10:24,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:24,540 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] [2022-11-21 17:10:24,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 17:10:24,541 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 17:10:24,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:24,541 INFO L85 PathProgramCache]: Analyzing trace with hash -835925944, now seen corresponding path program 1 times [2022-11-21 17:10:24,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:24,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838417388] [2022-11-21 17:10:24,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:24,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:24,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:24,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:24,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:24,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:24,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:24,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:24,779 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-21 17:10:24,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:24,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838417388] [2022-11-21 17:10:24,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838417388] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:10:24,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448390705] [2022-11-21 17:10:24,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:24,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:24,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:24,784 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:10:24,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 17:10:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:25,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:10:25,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:10:25,225 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-21 17:10:25,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:10:25,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448390705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:25,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:10:25,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-21 17:10:25,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682644464] [2022-11-21 17:10:25,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:25,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:10:25,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:25,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:10:25,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:10:25,231 INFO L87 Difference]: Start difference. First operand 2174 states and 2787 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) [2022-11-21 17:10:25,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:25,391 INFO L93 Difference]: Finished difference Result 4644 states and 6043 transitions. [2022-11-21 17:10:25,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:10:25,392 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 [2022-11-21 17:10:25,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:25,404 INFO L225 Difference]: With dead ends: 4644 [2022-11-21 17:10:25,405 INFO L226 Difference]: Without dead ends: 2570 [2022-11-21 17:10:25,411 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 [2022-11-21 17:10:25,411 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 88 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2200 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 [2022-11-21 17:10:25,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 2200 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:10:25,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2022-11-21 17:10:25,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2184. [2022-11-21 17:10:25,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 1666 states have (on average 1.271908763505402) internal successors, (2119), 1680 states have internal predecessors, (2119), 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) [2022-11-21 17:10:25,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 2797 transitions. [2022-11-21 17:10:25,603 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 2797 transitions. Word has length 95 [2022-11-21 17:10:25,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:25,603 INFO L495 AbstractCegarLoop]: Abstraction has 2184 states and 2797 transitions. [2022-11-21 17:10:25,603 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) [2022-11-21 17:10:25,603 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 2797 transitions. [2022-11-21 17:10:25,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-21 17:10:25,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:25,605 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] [2022-11-21 17:10:25,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-21 17:10:25,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-21 17:10:25,813 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)] === [2022-11-21 17:10:25,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:25,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1529407501, now seen corresponding path program 1 times [2022-11-21 17:10:25,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:25,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217252783] [2022-11-21 17:10:25,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:25,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:25,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:25,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:26,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:26,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:26,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:26,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:26,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:26,036 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-21 17:10:26,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:26,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217252783] [2022-11-21 17:10:26,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217252783] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:10:26,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509819593] [2022-11-21 17:10:26,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:26,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:26,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:26,038 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:10:26,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-21 17:10:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:26,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:10:26,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:10:26,495 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-21 17:10:26,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:10:26,565 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-21 17:10:26,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509819593] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:10:26,566 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:10:26,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-11-21 17:10:26,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209952165] [2022-11-21 17:10:26,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:10:26,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 17:10:26,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:26,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 17:10:26,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:10:26,568 INFO L87 Difference]: Start difference. First operand 2184 states and 2797 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) [2022-11-21 17:10:27,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:27,949 INFO L93 Difference]: Finished difference Result 3100 states and 4190 transitions. [2022-11-21 17:10:27,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:10:27,950 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 [2022-11-21 17:10:27,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:27,964 INFO L225 Difference]: With dead ends: 3100 [2022-11-21 17:10:27,965 INFO L226 Difference]: Without dead ends: 3099 [2022-11-21 17:10:27,966 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 [2022-11-21 17:10:27,967 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 292 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:27,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 1619 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-21 17:10:27,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2022-11-21 17:10:28,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 2183. [2022-11-21 17:10:28,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2183 states, 1666 states have (on average 1.2683073229291717) internal successors, (2113), 1679 states have internal predecessors, (2113), 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) [2022-11-21 17:10:28,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 2791 transitions. [2022-11-21 17:10:28,126 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 2791 transitions. Word has length 99 [2022-11-21 17:10:28,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:28,126 INFO L495 AbstractCegarLoop]: Abstraction has 2183 states and 2791 transitions. [2022-11-21 17:10:28,126 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) [2022-11-21 17:10:28,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 2791 transitions. [2022-11-21 17:10:28,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-21 17:10:28,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:28,130 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] [2022-11-21 17:10:28,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-21 17:10:28,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-21 17:10:28,338 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 17:10:28,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:28,338 INFO L85 PathProgramCache]: Analyzing trace with hash 166992346, now seen corresponding path program 1 times [2022-11-21 17:10:28,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:28,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542201242] [2022-11-21 17:10:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:28,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:28,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:28,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:28,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:28,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:28,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:28,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:28,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:28,559 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-21 17:10:28,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:28,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542201242] [2022-11-21 17:10:28,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542201242] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:10:28,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613239289] [2022-11-21 17:10:28,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:28,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:28,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:28,562 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:10:28,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-21 17:10:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:28,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:10:28,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:10:29,007 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-21 17:10:29,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:10:29,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613239289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:29,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:10:29,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-21 17:10:29,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535359988] [2022-11-21 17:10:29,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:29,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:10:29,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:29,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:10:29,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:10:29,010 INFO L87 Difference]: Start difference. First operand 2183 states and 2791 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) [2022-11-21 17:10:29,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:29,126 INFO L93 Difference]: Finished difference Result 2195 states and 2809 transitions. [2022-11-21 17:10:29,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:10:29,127 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 [2022-11-21 17:10:29,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:29,137 INFO L225 Difference]: With dead ends: 2195 [2022-11-21 17:10:29,137 INFO L226 Difference]: Without dead ends: 2194 [2022-11-21 17:10:29,139 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 [2022-11-21 17:10:29,140 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 8 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 939 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 [2022-11-21 17:10:29,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 939 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:10:29,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2022-11-21 17:10:29,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2146. [2022-11-21 17:10:29,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2146 states, 1630 states have (on average 1.2668711656441718) internal successors, (2065), 1642 states have internal predecessors, (2065), 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) [2022-11-21 17:10:29,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2146 states to 2146 states and 2743 transitions. [2022-11-21 17:10:29,348 INFO L78 Accepts]: Start accepts. Automaton has 2146 states and 2743 transitions. Word has length 100 [2022-11-21 17:10:29,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:29,348 INFO L495 AbstractCegarLoop]: Abstraction has 2146 states and 2743 transitions. [2022-11-21 17:10:29,349 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) [2022-11-21 17:10:29,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2146 states and 2743 transitions. [2022-11-21 17:10:29,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-21 17:10:29,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:29,352 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] [2022-11-21 17:10:29,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-21 17:10:29,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-21 17:10:29,559 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 17:10:29,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:29,559 INFO L85 PathProgramCache]: Analyzing trace with hash 997952132, now seen corresponding path program 1 times [2022-11-21 17:10:29,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:29,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690352548] [2022-11-21 17:10:29,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:29,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:29,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:29,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:29,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:29,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:29,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:29,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:29,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 17:10:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:29,882 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-21 17:10:29,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:29,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690352548] [2022-11-21 17:10:29,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690352548] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:10:29,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627139456] [2022-11-21 17:10:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:29,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:29,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:29,888 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:10:29,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-21 17:10:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:30,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:10:30,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:10:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-21 17:10:30,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:10:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-21 17:10:30,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627139456] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:10:30,581 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:10:30,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 9 [2022-11-21 17:10:30,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964473658] [2022-11-21 17:10:30,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:10:30,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 17:10:30,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:30,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 17:10:30,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:10:30,584 INFO L87 Difference]: Start difference. First operand 2146 states and 2743 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) [2022-11-21 17:10:35,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:35,996 INFO L93 Difference]: Finished difference Result 7753 states and 10455 transitions. [2022-11-21 17:10:35,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-21 17:10:35,997 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 [2022-11-21 17:10:35,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:36,034 INFO L225 Difference]: With dead ends: 7753 [2022-11-21 17:10:36,034 INFO L226 Difference]: Without dead ends: 7751 [2022-11-21 17:10:36,038 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 [2022-11-21 17:10:36,039 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 4690 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 1823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4914 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 4660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1823 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:36,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4914 Valid, 2015 Invalid, 4660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1823 Valid, 2837 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-21 17:10:36,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7751 states. [2022-11-21 17:10:36,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7751 to 4183. [2022-11-21 17:10:36,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4183 states, 3172 states have (on average 1.2654476670870114) internal successors, (4014), 3193 states have internal predecessors, (4014), 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) [2022-11-21 17:10:36,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4183 states to 4183 states and 5352 transitions. [2022-11-21 17:10:36,406 INFO L78 Accepts]: Start accepts. Automaton has 4183 states and 5352 transitions. Word has length 105 [2022-11-21 17:10:36,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:36,406 INFO L495 AbstractCegarLoop]: Abstraction has 4183 states and 5352 transitions. [2022-11-21 17:10:36,408 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) [2022-11-21 17:10:36,408 INFO L276 IsEmpty]: Start isEmpty. Operand 4183 states and 5352 transitions. [2022-11-21 17:10:36,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-21 17:10:36,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:36,411 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] [2022-11-21 17:10:36,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-21 17:10:36,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:36,618 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 17:10:36,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:36,618 INFO L85 PathProgramCache]: Analyzing trace with hash 871745675, now seen corresponding path program 1 times [2022-11-21 17:10:36,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:36,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282763848] [2022-11-21 17:10:36,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:36,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:36,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:36,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:36,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:36,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:36,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:36,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:36,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:36,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 17:10:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:36,978 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-21 17:10:36,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:36,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282763848] [2022-11-21 17:10:36,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282763848] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:10:36,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23819859] [2022-11-21 17:10:36,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:36,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:36,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:10:36,980 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:10:36,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-21 17:10:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:37,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:10:37,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:10:37,553 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-21 17:10:37,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:10:37,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23819859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:37,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:10:37,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-21 17:10:37,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51372927] [2022-11-21 17:10:37,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:37,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:10:37,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:37,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:10:37,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:10:37,556 INFO L87 Difference]: Start difference. First operand 4183 states and 5352 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) [2022-11-21 17:10:38,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:38,148 INFO L93 Difference]: Finished difference Result 4832 states and 6182 transitions. [2022-11-21 17:10:38,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:10:38,149 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 [2022-11-21 17:10:38,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:38,168 INFO L225 Difference]: With dead ends: 4832 [2022-11-21 17:10:38,168 INFO L226 Difference]: Without dead ends: 4830 [2022-11-21 17:10:38,171 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 [2022-11-21 17:10:38,171 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 853 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:38,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 1214 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 17:10:38,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4830 states. [2022-11-21 17:10:38,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4830 to 3532. [2022-11-21 17:10:38,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3532 states, 2684 states have (on average 1.2652757078986587) internal successors, (3396), 2699 states have internal predecessors, (3396), 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) [2022-11-21 17:10:38,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 4518 transitions. [2022-11-21 17:10:38,518 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 4518 transitions. Word has length 106 [2022-11-21 17:10:38,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:38,519 INFO L495 AbstractCegarLoop]: Abstraction has 3532 states and 4518 transitions. [2022-11-21 17:10:38,519 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) [2022-11-21 17:10:38,519 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 4518 transitions. [2022-11-21 17:10:38,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-21 17:10:38,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:38,524 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] [2022-11-21 17:10:38,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-21 17:10:38,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:10:38,732 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-21 17:10:38,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:38,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2125365114, now seen corresponding path program 1 times [2022-11-21 17:10:38,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:38,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364477282] [2022-11-21 17:10:38,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:38,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:38,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:38,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:38,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:38,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:38,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:38,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:38,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:38,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 17:10:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:38,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:10:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:38,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-21 17:10:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:38,994 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-21 17:10:38,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:38,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364477282] [2022-11-21 17:10:38,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364477282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:38,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:38,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:10:38,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793884154] [2022-11-21 17:10:38,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:38,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:10:38,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:38,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:10:38,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:10:38,998 INFO L87 Difference]: Start difference. First operand 3532 states and 4518 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) [2022-11-21 17:10:41,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:41,303 INFO L93 Difference]: Finished difference Result 8120 states and 10725 transitions. [2022-11-21 17:10:41,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:10:41,304 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 [2022-11-21 17:10:41,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:41,324 INFO L225 Difference]: With dead ends: 8120 [2022-11-21 17:10:41,324 INFO L226 Difference]: Without dead ends: 4690 [2022-11-21 17:10:41,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:10:41,334 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 744 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:41,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 1878 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-21 17:10:41,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4690 states. [2022-11-21 17:10:41,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4690 to 3334. [2022-11-21 17:10:41,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 2518 states have (on average 1.2494042891183479) internal successors, (3146), 2535 states have internal predecessors, (3146), 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) [2022-11-21 17:10:41,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4232 transitions. [2022-11-21 17:10:41,645 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4232 transitions. Word has length 127 [2022-11-21 17:10:41,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:41,645 INFO L495 AbstractCegarLoop]: Abstraction has 3334 states and 4232 transitions. [2022-11-21 17:10:41,646 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) [2022-11-21 17:10:41,646 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4232 transitions. [2022-11-21 17:10:41,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-21 17:10:41,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:41,656 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] [2022-11-21 17:10:41,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 17:10:41,656 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)] === [2022-11-21 17:10:41,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:41,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1403055532, now seen corresponding path program 1 times [2022-11-21 17:10:41,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:41,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025232198] [2022-11-21 17:10:41,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:41,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:41,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:41,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:41,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:41,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:41,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:41,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:41,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:41,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 17:10:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:41,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 17:10:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:41,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 17:10:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:41,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:41,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:41,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-21 17:10:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:42,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:42,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:42,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-21 17:10:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:42,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-21 17:10:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-21 17:10:42,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:42,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025232198] [2022-11-21 17:10:42,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025232198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:42,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:42,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:10:42,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117705509] [2022-11-21 17:10:42,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:42,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:10:42,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:42,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:10:42,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:10:42,034 INFO L87 Difference]: Start difference. First operand 3334 states and 4232 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) [2022-11-21 17:10:44,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:44,169 INFO L93 Difference]: Finished difference Result 8020 states and 10520 transitions. [2022-11-21 17:10:44,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:10:44,172 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 [2022-11-21 17:10:44,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:44,187 INFO L225 Difference]: With dead ends: 8020 [2022-11-21 17:10:44,187 INFO L226 Difference]: Without dead ends: 3824 [2022-11-21 17:10:44,196 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 [2022-11-21 17:10:44,197 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 898 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:44,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 1349 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-21 17:10:44,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3824 states. [2022-11-21 17:10:44,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3824 to 2737. [2022-11-21 17:10:44,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2737 states, 2066 states have (on average 1.240077444336883) internal successors, (2562), 2079 states have internal predecessors, (2562), 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) [2022-11-21 17:10:44,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2737 states to 2737 states and 3454 transitions. [2022-11-21 17:10:44,482 INFO L78 Accepts]: Start accepts. Automaton has 2737 states and 3454 transitions. Word has length 213 [2022-11-21 17:10:44,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:44,483 INFO L495 AbstractCegarLoop]: Abstraction has 2737 states and 3454 transitions. [2022-11-21 17:10:44,483 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) [2022-11-21 17:10:44,483 INFO L276 IsEmpty]: Start isEmpty. Operand 2737 states and 3454 transitions. [2022-11-21 17:10:44,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-21 17:10:44,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:44,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:10:44,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-21 17:10:44,491 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)] === [2022-11-21 17:10:44,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:44,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1813665898, now seen corresponding path program 1 times [2022-11-21 17:10:44,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:44,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54823048] [2022-11-21 17:10:44,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:44,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 17:10:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 17:10:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 17:10:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-21 17:10:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-21 17:10:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-21 17:10:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:44,893 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-21 17:10:44,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:44,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54823048] [2022-11-21 17:10:44,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54823048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:44,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:44,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:10:44,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227862117] [2022-11-21 17:10:44,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:44,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:10:44,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:44,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:10:44,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:10:44,897 INFO L87 Difference]: Start difference. First operand 2737 states and 3454 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 17:10:46,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:46,343 INFO L93 Difference]: Finished difference Result 6697 states and 8757 transitions. [2022-11-21 17:10:46,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:10:46,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 213 [2022-11-21 17:10:46,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:46,358 INFO L225 Difference]: With dead ends: 6697 [2022-11-21 17:10:46,359 INFO L226 Difference]: Without dead ends: 3957 [2022-11-21 17:10:46,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:10:46,367 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 1054 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:46,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 1223 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-21 17:10:46,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3957 states. [2022-11-21 17:10:46,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3957 to 2737. [2022-11-21 17:10:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2737 states, 2066 states have (on average 1.2386253630203292) internal successors, (2559), 2079 states have internal predecessors, (2559), 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) [2022-11-21 17:10:46,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2737 states to 2737 states and 3451 transitions. [2022-11-21 17:10:46,670 INFO L78 Accepts]: Start accepts. Automaton has 2737 states and 3451 transitions. Word has length 213 [2022-11-21 17:10:46,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:46,670 INFO L495 AbstractCegarLoop]: Abstraction has 2737 states and 3451 transitions. [2022-11-21 17:10:46,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 17:10:46,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2737 states and 3451 transitions. [2022-11-21 17:10:46,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-21 17:10:46,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:46,677 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] [2022-11-21 17:10:46,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-21 17:10:46,678 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)] === [2022-11-21 17:10:46,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:46,678 INFO L85 PathProgramCache]: Analyzing trace with hash 832905425, now seen corresponding path program 1 times [2022-11-21 17:10:46,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:46,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228706265] [2022-11-21 17:10:46,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:46,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:46,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:46,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:46,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:46,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:46,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 17:10:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 17:10:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 17:10:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 17:10:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-21 17:10:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-21 17:10:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-21 17:10:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-21 17:10:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:47,147 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-11-21 17:10:47,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:47,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228706265] [2022-11-21 17:10:47,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228706265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:47,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:47,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:10:47,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963228571] [2022-11-21 17:10:47,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:47,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:10:47,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:47,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:10:47,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:10:47,152 INFO L87 Difference]: Start difference. First operand 2737 states and 3451 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) [2022-11-21 17:10:48,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:48,637 INFO L93 Difference]: Finished difference Result 6739 states and 8836 transitions. [2022-11-21 17:10:48,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 17:10:48,639 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 [2022-11-21 17:10:48,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:48,655 INFO L225 Difference]: With dead ends: 6739 [2022-11-21 17:10:48,655 INFO L226 Difference]: Without dead ends: 4086 [2022-11-21 17:10:48,663 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 [2022-11-21 17:10:48,664 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 583 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:48,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 1687 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-21 17:10:48,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4086 states. [2022-11-21 17:10:49,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4086 to 2741. [2022-11-21 17:10:49,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2741 states, 2070 states have (on average 1.23768115942029) internal successors, (2562), 2083 states have internal predecessors, (2562), 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) [2022-11-21 17:10:49,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2741 states to 2741 states and 3454 transitions. [2022-11-21 17:10:49,020 INFO L78 Accepts]: Start accepts. Automaton has 2741 states and 3454 transitions. Word has length 222 [2022-11-21 17:10:49,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:49,023 INFO L495 AbstractCegarLoop]: Abstraction has 2741 states and 3454 transitions. [2022-11-21 17:10:49,023 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) [2022-11-21 17:10:49,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2741 states and 3454 transitions. [2022-11-21 17:10:49,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-21 17:10:49,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:10:49,030 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] [2022-11-21 17:10:49,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-21 17:10:49,030 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)] === [2022-11-21 17:10:49,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:10:49,031 INFO L85 PathProgramCache]: Analyzing trace with hash 529635754, now seen corresponding path program 1 times [2022-11-21 17:10:49,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:10:49,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230241228] [2022-11-21 17:10:49,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:10:49,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:10:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 17:10:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:10:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 17:10:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:10:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 17:10:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 17:10:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-21 17:10:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-21 17:10:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 17:10:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-21 17:10:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-21 17:10:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:10:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:10:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-21 17:10:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-21 17:10:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:10:49,558 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-21 17:10:49,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:10:49,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230241228] [2022-11-21 17:10:49,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230241228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:10:49,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:10:49,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 17:10:49,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219772435] [2022-11-21 17:10:49,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:10:49,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 17:10:49,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:10:49,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 17:10:49,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:10:49,561 INFO L87 Difference]: Start difference. First operand 2741 states and 3454 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-21 17:10:49,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:49,781 INFO L93 Difference]: Finished difference Result 2857 states and 3586 transitions. [2022-11-21 17:10:49,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:10:49,782 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 243 [2022-11-21 17:10:49,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:49,782 INFO L225 Difference]: With dead ends: 2857 [2022-11-21 17:10:49,782 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 17:10:49,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-21 17:10:49,786 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 64 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:49,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 422 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:10:49,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 17:10:49,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 17:10:49,788 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) [2022-11-21 17:10:49,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 17:10:49,788 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 243 [2022-11-21 17:10:49,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:10:49,789 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:10:49,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-21 17:10:49,789 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 17:10:49,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 17:10:49,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-21 17:10:49,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-21 17:10:49,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-21 17:10:49,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-21 17:10:49,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-21 17:10:49,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-21 17:10:49,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-21 17:10:49,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-21 17:10:49,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-21 17:10:49,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-21 17:10:49,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-21 17:10:49,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 17:11:02,561 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_state_variable_0~0 3)))) (and (or .cse0 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse1) (or .cse0 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse1 (not (<= ~ref_cnt~0 1))))) [2022-11-21 17:11:02,561 INFO L899 garLoopResultBuilder]: For program point L7284-2(lines 7281 7291) no Hoare annotation was computed. [2022-11-21 17:11:02,561 INFO L899 garLoopResultBuilder]: For program point L7284(lines 7284 7288) no Hoare annotation was computed. [2022-11-21 17:11:02,561 INFO L899 garLoopResultBuilder]: For program point tgt_ring_idx_incEXIT(lines 7281 7291) no Hoare annotation was computed. [2022-11-21 17:11:02,561 INFO L899 garLoopResultBuilder]: For program point __raw_spin_lock_initEXIT(lines 8215 8217) no Hoare annotation was computed. [2022-11-21 17:11:02,562 INFO L902 garLoopResultBuilder]: At program point __raw_spin_lock_initENTRY(lines 8215 8217) the Hoare annotation is: true [2022-11-21 17:11:02,562 INFO L899 garLoopResultBuilder]: For program point __raw_spin_lock_initFINAL(lines 8215 8217) no Hoare annotation was computed. [2022-11-21 17:11:02,562 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))) [2022-11-21 17:11:02,562 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|)) [2022-11-21 17:11:02,562 INFO L899 garLoopResultBuilder]: For program point tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7600) no Hoare annotation was computed. [2022-11-21 17:11:02,563 INFO L899 garLoopResultBuilder]: For program point L7600-1(line 7600) no Hoare annotation was computed. [2022-11-21 17:11:02,563 INFO L899 garLoopResultBuilder]: For program point tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7600) no Hoare annotation was computed. [2022-11-21 17:11:02,563 INFO L899 garLoopResultBuilder]: For program point tgt_ring_exitEXIT(lines 7593 7610) no Hoare annotation was computed. [2022-11-21 17:11:02,563 INFO L899 garLoopResultBuilder]: For program point L7600(line 7600) no Hoare annotation was computed. [2022-11-21 17:11:02,563 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|))) [2022-11-21 17:11:02,563 INFO L902 garLoopResultBuilder]: At program point tgt_ring_exitENTRY(lines 7593 7610) the Hoare annotation is: true [2022-11-21 17:11:02,563 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))) [2022-11-21 17:11:02,564 INFO L895 garLoopResultBuilder]: At program point L7550(lines 7533 7554) the Hoare annotation is: (let ((.cse0 (and (<= |uspace_ring_map_~i~2#1| 2147483646) (<= 1 |uspace_ring_map_~i~2#1|))) (.cse1 (not (= ~ldv_state_variable_0~0 3)))) (and (or .cse0 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse1) (or (not (= ~ldv_state_variable_1~0 2)) .cse0 (not (<= 1 ~ref_cnt~0)) .cse1 (not (<= ~ref_cnt~0 1))))) [2022-11-21 17:11:02,564 INFO L902 garLoopResultBuilder]: At program point uspace_ring_mapENTRY(lines 7528 7555) the Hoare annotation is: true [2022-11-21 17:11:02,564 INFO L895 garLoopResultBuilder]: At program point L7546(lines 7533 7554) the Hoare annotation is: (let ((.cse0 (and (<= |uspace_ring_map_~i~2#1| 2147483646) (<= 1 |uspace_ring_map_~i~2#1|))) (.cse1 (= |uspace_ring_map_~i~2#1| 0)) (.cse2 (not (= ~ldv_state_variable_0~0 3)))) (and (or (not (= ~ldv_state_variable_1~0 2)) .cse0 (not (<= 1 ~ref_cnt~0)) .cse1 .cse2 (not (<= ~ref_cnt~0 1))) (or .cse0 (not (= ~ref_cnt~0 0)) .cse1 (not (= ~ldv_state_variable_1~0 1)) .cse2))) [2022-11-21 17:11:02,565 INFO L895 garLoopResultBuilder]: At program point L8347(lines 8346 8348) the Hoare annotation is: (let ((.cse0 (and (<= 1 |uspace_ring_map_~i~2#1|) (< |uspace_ring_map_~i~2#1| 2147483646))) (.cse1 (= |uspace_ring_map_~i~2#1| 0)) (.cse2 (not (= ~ldv_state_variable_0~0 3)))) (and (or (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse0 .cse1 .cse2 (not (<= ~ref_cnt~0 1))) (or (not (= ~ref_cnt~0 0)) .cse0 .cse1 (not (= ~ldv_state_variable_1~0 1)) .cse2))) [2022-11-21 17:11:02,565 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7545) no Hoare annotation was computed. [2022-11-21 17:11:02,565 INFO L895 garLoopResultBuilder]: At program point L7548(lines 7533 7554) the Hoare annotation is: (let ((.cse0 (and (<= 1 |uspace_ring_map_~i~2#1|) (< |uspace_ring_map_~i~2#1| 2147483646))) (.cse1 (= |uspace_ring_map_~i~2#1| 0)) (.cse2 (not (= ~ldv_state_variable_0~0 3)))) (and (or (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse0 .cse1 .cse2 (not (<= ~ref_cnt~0 1))) (or (not (= ~ref_cnt~0 0)) .cse0 .cse1 (not (= ~ldv_state_variable_1~0 1)) .cse2))) [2022-11-21 17:11:02,565 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7545) no Hoare annotation was computed. [2022-11-21 17:11:02,565 INFO L899 garLoopResultBuilder]: For program point L7545-1(line 7545) no Hoare annotation was computed. [2022-11-21 17:11:02,565 INFO L899 garLoopResultBuilder]: For program point L7545(line 7545) no Hoare annotation was computed. [2022-11-21 17:11:02,566 INFO L899 garLoopResultBuilder]: For program point L7540(lines 7540 7543) no Hoare annotation was computed. [2022-11-21 17:11:02,566 INFO L895 garLoopResultBuilder]: At program point L8213(lines 8212 8214) the Hoare annotation is: (let ((.cse0 (and (<= 1 |uspace_ring_map_~i~2#1|) (< |uspace_ring_map_~i~2#1| 2147483646))) (.cse1 (= |uspace_ring_map_~i~2#1| 0)) (.cse2 (not (= ~ldv_state_variable_0~0 3)))) (and (or (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse0 .cse1 .cse2 (not (<= ~ref_cnt~0 1))) (or (not (= ~ref_cnt~0 0)) .cse0 .cse1 (not (= ~ldv_state_variable_1~0 1)) .cse2))) [2022-11-21 17:11:02,566 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapEXIT(lines 7528 7555) no Hoare annotation was computed. [2022-11-21 17:11:02,566 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapFINAL(lines 7528 7555) no Hoare annotation was computed. [2022-11-21 17:11:02,566 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_destroyFINAL(lines 6604 6619) no Hoare annotation was computed. [2022-11-21 17:11:02,566 INFO L902 garLoopResultBuilder]: At program point L8225(lines 8224 8226) the Hoare annotation is: true [2022-11-21 17:11:02,567 INFO L899 garLoopResultBuilder]: For program point L6615-1(line 6615) no Hoare annotation was computed. [2022-11-21 17:11:02,567 INFO L902 garLoopResultBuilder]: At program point L6615(line 6615) the Hoare annotation is: true [2022-11-21 17:11:02,567 INFO L899 garLoopResultBuilder]: For program point L6613-1(line 6613) no Hoare annotation was computed. [2022-11-21 17:11:02,567 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_state_variable_0~0 3)))) (and (or .cse0 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse1) (or .cse0 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse1 (not (<= ~ref_cnt~0 1))))) [2022-11-21 17:11:02,568 INFO L899 garLoopResultBuilder]: For program point L6575-1(line 6575) no Hoare annotation was computed. [2022-11-21 17:11:02,568 INFO L902 garLoopResultBuilder]: At program point L6575(line 6575) the Hoare annotation is: true [2022-11-21 17:11:02,568 INFO L902 garLoopResultBuilder]: At program point L6577(lines 6561 6579) the Hoare annotation is: true [2022-11-21 17:11:02,568 INFO L899 garLoopResultBuilder]: For program point L6571-1(line 6571) no Hoare annotation was computed. [2022-11-21 17:11:02,568 INFO L902 garLoopResultBuilder]: At program point L6571(line 6571) the Hoare annotation is: true [2022-11-21 17:11:02,568 INFO L899 garLoopResultBuilder]: For program point L6572-1(line 6572) no Hoare annotation was computed. [2022-11-21 17:11:02,568 INFO L902 garLoopResultBuilder]: At program point L6572(line 6572) the Hoare annotation is: true [2022-11-21 17:11:02,569 INFO L899 garLoopResultBuilder]: For program point L6573-1(line 6573) no Hoare annotation was computed. [2022-11-21 17:11:02,569 INFO L902 garLoopResultBuilder]: At program point L6573(line 6573) the Hoare annotation is: true [2022-11-21 17:11:02,569 INFO L902 garLoopResultBuilder]: At program point L8200(lines 8199 8201) the Hoare annotation is: true [2022-11-21 17:11:02,569 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_state_variable_0~0 3)))) (and (or .cse0 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse1) (or .cse0 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse1 (not (<= ~ref_cnt~0 1))))) [2022-11-21 17:11:02,569 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_destroyEXIT(lines 6604 6619) no Hoare annotation was computed. [2022-11-21 17:11:02,569 INFO L899 garLoopResultBuilder]: For program point L6427-1(line 6427) no Hoare annotation was computed. [2022-11-21 17:11:02,571 INFO L902 garLoopResultBuilder]: At program point L6427(line 6427) the Hoare annotation is: true [2022-11-21 17:11:02,571 INFO L899 garLoopResultBuilder]: For program point L6807(line 6807) no Hoare annotation was computed. [2022-11-21 17:11:02,571 INFO L899 garLoopResultBuilder]: For program point L6940(lines 6940 6944) no Hoare annotation was computed. [2022-11-21 17:11:02,571 INFO L899 garLoopResultBuilder]: For program point L6973-1(line 6973) no Hoare annotation was computed. [2022-11-21 17:11:02,571 INFO L902 garLoopResultBuilder]: At program point L6973(line 6973) the Hoare annotation is: true [2022-11-21 17:11:02,572 INFO L899 garLoopResultBuilder]: For program point L6858(lines 6858 6862) no Hoare annotation was computed. [2022-11-21 17:11:02,572 INFO L899 garLoopResultBuilder]: For program point L7469(line 7469) no Hoare annotation was computed. [2022-11-21 17:11:02,572 INFO L902 garLoopResultBuilder]: At program point L6974(line 6974) the Hoare annotation is: true [2022-11-21 17:11:02,572 INFO L899 garLoopResultBuilder]: For program point L7007-1(line 7007) no Hoare annotation was computed. [2022-11-21 17:11:02,572 INFO L902 garLoopResultBuilder]: At program point L7007(line 7007) the Hoare annotation is: true [2022-11-21 17:11:02,572 INFO L899 garLoopResultBuilder]: For program point L6974-1(line 6974) no Hoare annotation was computed. [2022-11-21 17:11:02,573 INFO L902 garLoopResultBuilder]: At program point L6430(line 6430) the Hoare annotation is: true [2022-11-21 17:11:02,573 INFO L902 garLoopResultBuilder]: At program point L6975-1(line 6975) the Hoare annotation is: true [2022-11-21 17:11:02,573 INFO L902 garLoopResultBuilder]: At program point L6975(line 6975) the Hoare annotation is: true [2022-11-21 17:11:02,573 INFO L899 garLoopResultBuilder]: For program point L7008(lines 7008 7012) no Hoare annotation was computed. [2022-11-21 17:11:02,573 INFO L902 garLoopResultBuilder]: At program point L6810(lines 6797 6812) the Hoare annotation is: true [2022-11-21 17:11:02,573 INFO L899 garLoopResultBuilder]: For program point L6876-1(line 6876) no Hoare annotation was computed. [2022-11-21 17:11:02,573 INFO L902 garLoopResultBuilder]: At program point L6876(line 6876) the Hoare annotation is: true [2022-11-21 17:11:02,574 INFO L902 garLoopResultBuilder]: At program point L6909(lines 6890 6918) the Hoare annotation is: true [2022-11-21 17:11:02,574 INFO L899 garLoopResultBuilder]: For program point L6430-1(line 6430) no Hoare annotation was computed. [2022-11-21 17:11:02,574 INFO L895 garLoopResultBuilder]: At program point tgt_writeENTRY(lines 7481 7500) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_state_variable_0~0 3))) (.cse1 (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 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse0 .cse1) (or (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse0 (not (<= ~ref_cnt~0 1)) .cse1))) [2022-11-21 17:11:02,574 INFO L899 garLoopResultBuilder]: For program point L6893-1(line 6893) no Hoare annotation was computed. [2022-11-21 17:11:02,574 INFO L902 garLoopResultBuilder]: At program point L6893(line 6893) the Hoare annotation is: true [2022-11-21 17:11:02,575 INFO L902 garLoopResultBuilder]: At program point L8297(lines 8296 8298) the Hoare annotation is: true [2022-11-21 17:11:02,575 INFO L899 garLoopResultBuilder]: For program point L7488-1(line 7488) no Hoare annotation was computed. [2022-11-21 17:11:02,575 INFO L899 garLoopResultBuilder]: For program point L6431(lines 6431 6435) no Hoare annotation was computed. [2022-11-21 17:11:02,575 INFO L902 garLoopResultBuilder]: At program point L7488(line 7488) the Hoare annotation is: true [2022-11-21 17:11:02,575 INFO L902 garLoopResultBuilder]: At program point L6877(lines 6866 6879) the Hoare annotation is: true [2022-11-21 17:11:02,575 INFO L902 garLoopResultBuilder]: At program point L6431-2(lines 6431 6435) the Hoare annotation is: true [2022-11-21 17:11:02,575 INFO L899 garLoopResultBuilder]: For program point L7059(lines 7059 7063) no Hoare annotation was computed. [2022-11-21 17:11:02,576 INFO L899 garLoopResultBuilder]: For program point L6960-2(lines 6932 6986) no Hoare annotation was computed. [2022-11-21 17:11:02,576 INFO L899 garLoopResultBuilder]: For program point L6960(lines 6960 6963) no Hoare annotation was computed. [2022-11-21 17:11:02,576 INFO L902 garLoopResultBuilder]: At program point L6911(lines 6890 6918) the Hoare annotation is: true [2022-11-21 17:11:02,576 INFO L899 garLoopResultBuilder]: For program point L7489(lines 7489 7492) no Hoare annotation was computed. [2022-11-21 17:11:02,576 INFO L899 garLoopResultBuilder]: For program point L6895-1(line 6895) no Hoare annotation was computed. [2022-11-21 17:11:02,576 INFO L902 garLoopResultBuilder]: At program point L6895(line 6895) the Hoare annotation is: true [2022-11-21 17:11:02,576 INFO L899 garLoopResultBuilder]: For program point L7473(line 7473) no Hoare annotation was computed. [2022-11-21 17:11:02,577 INFO L902 garLoopResultBuilder]: At program point L7490(lines 7485 7499) the Hoare annotation is: true [2022-11-21 17:11:02,577 INFO L899 garLoopResultBuilder]: For program point L6830(lines 6830 6834) no Hoare annotation was computed. [2022-11-21 17:11:02,577 INFO L899 garLoopResultBuilder]: For program point L6896-1(line 6896) no Hoare annotation was computed. [2022-11-21 17:11:02,577 INFO L902 garLoopResultBuilder]: At program point L6863(lines 6842 6865) the Hoare annotation is: true [2022-11-21 17:11:02,577 INFO L902 garLoopResultBuilder]: At program point L6896(line 6896) the Hoare annotation is: true [2022-11-21 17:11:02,577 INFO L899 garLoopResultBuilder]: For program point L6946(lines 6946 6951) no Hoare annotation was computed. [2022-11-21 17:11:02,577 INFO L899 garLoopResultBuilder]: For program point L7458(lines 7458 7476) no Hoare annotation was computed. [2022-11-21 17:11:02,577 INFO L902 garLoopResultBuilder]: At program point L6913(lines 6890 6918) the Hoare annotation is: true [2022-11-21 17:11:02,578 INFO L902 garLoopResultBuilder]: At program point L6451(lines 6448 6453) the Hoare annotation is: true [2022-11-21 17:11:02,578 INFO L902 garLoopResultBuilder]: At program point L6831-1(lines 6818 6840) the Hoare annotation is: true [2022-11-21 17:11:02,578 INFO L902 garLoopResultBuilder]: At program point L6831(line 6831) the Hoare annotation is: true [2022-11-21 17:11:02,578 INFO L899 garLoopResultBuilder]: For program point L7459(line 7459) no Hoare annotation was computed. [2022-11-21 17:11:02,578 INFO L899 garLoopResultBuilder]: For program point L7013(lines 7013 7017) no Hoare annotation was computed. [2022-11-21 17:11:02,578 INFO L899 garLoopResultBuilder]: For program point L6964-1(lines 6964 6981) no Hoare annotation was computed. [2022-11-21 17:11:02,578 INFO L899 garLoopResultBuilder]: For program point L7493-1(line 7493) no Hoare annotation was computed. [2022-11-21 17:11:02,579 INFO L899 garLoopResultBuilder]: For program point L6436(line 6436) no Hoare annotation was computed. [2022-11-21 17:11:02,579 INFO L902 garLoopResultBuilder]: At program point L7493(line 7493) the Hoare annotation is: true [2022-11-21 17:11:02,579 INFO L902 garLoopResultBuilder]: At program point L7477(lines 7456 7479) the Hoare annotation is: true [2022-11-21 17:11:02,579 INFO L899 garLoopResultBuilder]: For program point L6916(line 6916) no Hoare annotation was computed. [2022-11-21 17:11:02,579 INFO L902 garLoopResultBuilder]: At program point L7478(lines 7454 7480) the Hoare annotation is: true [2022-11-21 17:11:02,579 INFO L902 garLoopResultBuilder]: At program point L7065(lines 7051 7068) the Hoare annotation is: true [2022-11-21 17:11:02,579 INFO L899 garLoopResultBuilder]: For program point L6421-1(line 6421) no Hoare annotation was computed. [2022-11-21 17:11:02,580 INFO L902 garLoopResultBuilder]: At program point L6421(line 6421) the Hoare annotation is: true [2022-11-21 17:11:02,580 INFO L902 garLoopResultBuilder]: At program point L6983(lines 6932 6986) the Hoare annotation is: true [2022-11-21 17:11:02,580 INFO L902 garLoopResultBuilder]: At program point L6917(lines 6880 6919) the Hoare annotation is: true [2022-11-21 17:11:02,580 INFO L902 garLoopResultBuilder]: At program point L8255(lines 8254 8256) the Hoare annotation is: true [2022-11-21 17:11:02,580 INFO L899 garLoopResultBuilder]: For program point L7066(line 7066) no Hoare annotation was computed. [2022-11-21 17:11:02,580 INFO L902 garLoopResultBuilder]: At program point L6934(line 6934) the Hoare annotation is: true [2022-11-21 17:11:02,580 INFO L899 garLoopResultBuilder]: For program point L6422(lines 6422 6438) no Hoare annotation was computed. [2022-11-21 17:11:02,580 INFO L899 garLoopResultBuilder]: For program point L6967(lines 6967 6979) no Hoare annotation was computed. [2022-11-21 17:11:02,580 INFO L902 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: true [2022-11-21 17:11:02,580 INFO L899 garLoopResultBuilder]: For program point L6934-1(line 6934) no Hoare annotation was computed. [2022-11-21 17:11:02,580 INFO L899 garLoopResultBuilder]: For program point L6901(lines 6901 6906) no Hoare annotation was computed. [2022-11-21 17:11:02,580 INFO L899 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2022-11-21 17:11:02,581 INFO L902 garLoopResultBuilder]: At program point L6439(lines 6410 6441) the Hoare annotation is: true [2022-11-21 17:11:02,581 INFO L899 garLoopResultBuilder]: For program point L6984(line 6984) no Hoare annotation was computed. [2022-11-21 17:11:02,581 INFO L902 garLoopResultBuilder]: At program point L7496(lines 7485 7499) the Hoare annotation is: true [2022-11-21 17:11:02,581 INFO L899 garLoopResultBuilder]: For program point tgt_writeFINAL(lines 7481 7500) no Hoare annotation was computed. [2022-11-21 17:11:02,581 INFO L899 garLoopResultBuilder]: For program point L6852-2(lines 6852 6856) no Hoare annotation was computed. [2022-11-21 17:11:02,581 INFO L899 garLoopResultBuilder]: For program point L6852(lines 6852 6856) no Hoare annotation was computed. [2022-11-21 17:11:02,581 INFO L902 garLoopResultBuilder]: At program point L7067(lines 7048 7069) the Hoare annotation is: true [2022-11-21 17:11:02,581 INFO L899 garLoopResultBuilder]: For program point L6423-1(line 6423) no Hoare annotation was computed. [2022-11-21 17:11:02,581 INFO L899 garLoopResultBuilder]: For program point L6935(lines 6935 6939) no Hoare annotation was computed. [2022-11-21 17:11:02,581 INFO L902 garLoopResultBuilder]: At program point L6423(line 6423) the Hoare annotation is: true [2022-11-21 17:11:02,581 INFO L899 garLoopResultBuilder]: For program point tgt_writeEXIT(lines 7481 7500) no Hoare annotation was computed. [2022-11-21 17:11:02,581 INFO L902 garLoopResultBuilder]: At program point L6985(lines 6920 6987) the Hoare annotation is: true [2022-11-21 17:11:02,582 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,582 INFO L902 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2022-11-21 17:11:02,582 INFO L899 garLoopResultBuilder]: For program point L-1-2(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,582 INFO L899 garLoopResultBuilder]: For program point L-1-4(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,582 INFO L902 garLoopResultBuilder]: At program point L-1-5(line -1) the Hoare annotation is: true [2022-11-21 17:11:02,582 INFO L902 garLoopResultBuilder]: At program point L6870(line 6870) the Hoare annotation is: true [2022-11-21 17:11:02,582 INFO L899 garLoopResultBuilder]: For program point L-1-6(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,582 INFO L902 garLoopResultBuilder]: At program point L6903(line 6903) the Hoare annotation is: true [2022-11-21 17:11:02,583 INFO L902 garLoopResultBuilder]: At program point L-1-8(line -1) the Hoare annotation is: true [2022-11-21 17:11:02,583 INFO L899 garLoopResultBuilder]: For program point L-1-9(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,583 INFO L899 garLoopResultBuilder]: For program point L-1-10(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,583 INFO L902 garLoopResultBuilder]: At program point L-1-11(line -1) the Hoare annotation is: true [2022-11-21 17:11:02,583 INFO L902 garLoopResultBuilder]: At program point L8340(lines 8339 8341) the Hoare annotation is: true [2022-11-21 17:11:02,583 INFO L899 garLoopResultBuilder]: For program point L-1-12(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,583 INFO L899 garLoopResultBuilder]: For program point L6870-1(line 6870) no Hoare annotation was computed. [2022-11-21 17:11:02,583 INFO L899 garLoopResultBuilder]: For program point L-1-13(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,583 INFO L902 garLoopResultBuilder]: At program point L7019(lines 7005 7022) the Hoare annotation is: true [2022-11-21 17:11:02,583 INFO L899 garLoopResultBuilder]: For program point L6953(lines 6953 6957) no Hoare annotation was computed. [2022-11-21 17:11:02,583 INFO L899 garLoopResultBuilder]: For program point L7465(line 7465) no Hoare annotation was computed. [2022-11-21 17:11:02,584 INFO L899 garLoopResultBuilder]: For program point L6838(line 6838) no Hoare annotation was computed. [2022-11-21 17:11:02,584 INFO L899 garLoopResultBuilder]: For program point L6871(lines 6871 6874) no Hoare annotation was computed. [2022-11-21 17:11:02,584 INFO L899 garLoopResultBuilder]: For program point L6425-1(line 6425) no Hoare annotation was computed. [2022-11-21 17:11:02,584 INFO L902 garLoopResultBuilder]: At program point L6425(line 6425) the Hoare annotation is: true [2022-11-21 17:11:02,584 INFO L899 garLoopResultBuilder]: For program point L6871-2(lines 6871 6874) no Hoare annotation was computed. [2022-11-21 17:11:02,584 INFO L899 garLoopResultBuilder]: For program point L6805(lines 6805 6809) no Hoare annotation was computed. [2022-11-21 17:11:02,584 INFO L899 garLoopResultBuilder]: For program point L7020(line 7020) no Hoare annotation was computed. [2022-11-21 17:11:02,584 INFO L899 garLoopResultBuilder]: For program point L7053-1(line 7053) no Hoare annotation was computed. [2022-11-21 17:11:02,584 INFO L902 garLoopResultBuilder]: At program point L7053(line 7053) the Hoare annotation is: true [2022-11-21 17:11:02,584 INFO L899 garLoopResultBuilder]: For program point L6822(lines 6822 6827) no Hoare annotation was computed. [2022-11-21 17:11:02,584 INFO L899 garLoopResultBuilder]: For program point L6426(lines 6426 6437) no Hoare annotation was computed. [2022-11-21 17:11:02,585 INFO L899 garLoopResultBuilder]: For program point L6971-1(line 6971) no Hoare annotation was computed. [2022-11-21 17:11:02,585 INFO L902 garLoopResultBuilder]: At program point L6971(line 6971) the Hoare annotation is: true [2022-11-21 17:11:02,585 INFO L899 garLoopResultBuilder]: For program point L6806(line 6806) no Hoare annotation was computed. [2022-11-21 17:11:02,585 INFO L902 garLoopResultBuilder]: At program point L6839(lines 6813 6841) the Hoare annotation is: true [2022-11-21 17:11:02,585 INFO L899 garLoopResultBuilder]: For program point L6426-2(lines 6422 6438) no Hoare annotation was computed. [2022-11-21 17:11:02,585 INFO L899 garLoopResultBuilder]: For program point L6806-2(line 6806) no Hoare annotation was computed. [2022-11-21 17:11:02,585 INFO L899 garLoopResultBuilder]: For program point L7054(lines 7054 7058) no Hoare annotation was computed. [2022-11-21 17:11:02,585 INFO L902 garLoopResultBuilder]: At program point L7021(lines 7002 7023) the Hoare annotation is: true [2022-11-21 17:11:02,585 INFO L899 garLoopResultBuilder]: For program point L7616-1(lines 7616 7617) no Hoare annotation was computed. [2022-11-21 17:11:02,586 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))) [2022-11-21 17:11:02,586 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initFINAL(lines 7611 7637) no Hoare annotation was computed. [2022-11-21 17:11:02,586 INFO L899 garLoopResultBuilder]: For program point L7627-1(line 7627) no Hoare annotation was computed. [2022-11-21 17:11:02,586 INFO L899 garLoopResultBuilder]: For program point L7627(line 7627) no Hoare annotation was computed. [2022-11-21 17:11:02,586 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|))) [2022-11-21 17:11:02,586 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7627) no Hoare annotation was computed. [2022-11-21 17:11:02,587 INFO L899 garLoopResultBuilder]: For program point L7615-1(line 7615) no Hoare annotation was computed. [2022-11-21 17:11:02,587 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))) [2022-11-21 17:11:02,587 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initEXIT(lines 7611 7637) no Hoare annotation was computed. [2022-11-21 17:11:02,587 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)) [2022-11-21 17:11:02,587 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)) [2022-11-21 17:11:02,588 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))) [2022-11-21 17:11:02,588 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))) [2022-11-21 17:11:02,588 INFO L899 garLoopResultBuilder]: For program point L7622(lines 7622 7626) no Hoare annotation was computed. [2022-11-21 17:11:02,588 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7627) no Hoare annotation was computed. [2022-11-21 17:11:02,588 INFO L899 garLoopResultBuilder]: For program point ldv_errorFINAL(lines 7842 7847) no Hoare annotation was computed. [2022-11-21 17:11:02,588 INFO L902 garLoopResultBuilder]: At program point ldv_errorENTRY(lines 7842 7847) the Hoare annotation is: true [2022-11-21 17:11:02,589 INFO L899 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 7842 7847) no Hoare annotation was computed. [2022-11-21 17:11:02,589 INFO L899 garLoopResultBuilder]: For program point list_delFINAL(lines 8290 8292) no Hoare annotation was computed. [2022-11-21 17:11:02,589 INFO L899 garLoopResultBuilder]: For program point list_delEXIT(lines 8290 8292) no Hoare annotation was computed. [2022-11-21 17:11:02,589 INFO L902 garLoopResultBuilder]: At program point list_delENTRY(lines 8290 8292) the Hoare annotation is: true [2022-11-21 17:11:02,589 INFO L902 garLoopResultBuilder]: At program point kmem_cache_freeENTRY(lines 8283 8285) the Hoare annotation is: true [2022-11-21 17:11:02,589 INFO L899 garLoopResultBuilder]: For program point kmem_cache_freeEXIT(lines 8283 8285) no Hoare annotation was computed. [2022-11-21 17:11:02,589 INFO L899 garLoopResultBuilder]: For program point kmem_cache_freeFINAL(lines 8283 8285) no Hoare annotation was computed. [2022-11-21 17:11:02,590 INFO L899 garLoopResultBuilder]: For program point tgt_head_eventFINAL(lines 7292 7300) no Hoare annotation was computed. [2022-11-21 17:11:02,590 INFO L899 garLoopResultBuilder]: For program point tgt_head_eventEXIT(lines 7292 7300) no Hoare annotation was computed. [2022-11-21 17:11:02,590 INFO L902 garLoopResultBuilder]: At program point tgt_head_eventENTRY(lines 7292 7300) the Hoare annotation is: true [2022-11-21 17:11:02,590 INFO L899 garLoopResultBuilder]: For program point L7519(line 7519) no Hoare annotation was computed. [2022-11-21 17:11:02,590 INFO L899 garLoopResultBuilder]: For program point L7521-2(line 7521) no Hoare annotation was computed. [2022-11-21 17:11:02,590 INFO L899 garLoopResultBuilder]: For program point L7521(line 7521) no Hoare annotation was computed. [2022-11-21 17:11:02,590 INFO L899 garLoopResultBuilder]: For program point L7261-2(lines 7261 7266) no Hoare annotation was computed. [2022-11-21 17:11:02,591 INFO L899 garLoopResultBuilder]: For program point L7261(lines 7261 7263) no Hoare annotation was computed. [2022-11-21 17:11:02,591 INFO L899 garLoopResultBuilder]: For program point L7521-4(line 7521) no Hoare annotation was computed. [2022-11-21 17:11:02,591 INFO L899 garLoopResultBuilder]: For program point L7513-1(line 7513) no Hoare annotation was computed. [2022-11-21 17:11:02,591 INFO L902 garLoopResultBuilder]: At program point L7261-4(lines 7257 7269) the Hoare annotation is: true [2022-11-21 17:11:02,591 INFO L902 garLoopResultBuilder]: At program point L7513(line 7513) the Hoare annotation is: true [2022-11-21 17:11:02,591 INFO L902 garLoopResultBuilder]: At program point tgt_pollENTRY(lines 7501 7527) the Hoare annotation is: true [2022-11-21 17:11:02,591 INFO L899 garLoopResultBuilder]: For program point L7524(line 7524) no Hoare annotation was computed. [2022-11-21 17:11:02,592 INFO L902 garLoopResultBuilder]: At program point L7520-2(lines 7520 7523) the Hoare annotation is: true [2022-11-21 17:11:02,592 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,592 INFO L899 garLoopResultBuilder]: For program point L7520(lines 7520 7523) no Hoare annotation was computed. [2022-11-21 17:11:02,592 INFO L899 garLoopResultBuilder]: For program point L7514(lines 7514 7518) no Hoare annotation was computed. [2022-11-21 17:11:02,592 INFO L899 garLoopResultBuilder]: For program point L7512-1(line 7512) no Hoare annotation was computed. [2022-11-21 17:11:02,592 INFO L902 garLoopResultBuilder]: At program point L7512(line 7512) the Hoare annotation is: true [2022-11-21 17:11:02,592 INFO L902 garLoopResultBuilder]: At program point L7514-2(lines 7514 7518) the Hoare annotation is: true [2022-11-21 17:11:02,593 INFO L899 garLoopResultBuilder]: For program point tgt_pollEXIT(lines 7501 7527) no Hoare annotation was computed. [2022-11-21 17:11:02,593 INFO L899 garLoopResultBuilder]: For program point tgt_pollFINAL(lines 7501 7527) no Hoare annotation was computed. [2022-11-21 17:11:02,593 INFO L899 garLoopResultBuilder]: For program point scsi_unmap_user_pagesFINAL(lines 6597 6603) no Hoare annotation was computed. [2022-11-21 17:11:02,593 INFO L902 garLoopResultBuilder]: At program point scsi_unmap_user_pagesENTRY(lines 6597 6603) the Hoare annotation is: true [2022-11-21 17:11:02,593 INFO L899 garLoopResultBuilder]: For program point scsi_unmap_user_pagesEXIT(lines 6597 6603) no Hoare annotation was computed. [2022-11-21 17:11:02,593 INFO L902 garLoopResultBuilder]: At program point L8259(lines 8258 8260) the Hoare annotation is: true [2022-11-21 17:11:02,593 INFO L899 garLoopResultBuilder]: For program point _raw_spin_lock_irqsaveFINAL(lines 8235 8237) no Hoare annotation was computed. [2022-11-21 17:11:02,594 INFO L899 garLoopResultBuilder]: For program point _raw_spin_lock_irqsaveEXIT(lines 8235 8237) no Hoare annotation was computed. [2022-11-21 17:11:02,594 INFO L902 garLoopResultBuilder]: At program point _raw_spin_lock_irqsaveENTRY(lines 8235 8237) the Hoare annotation is: true [2022-11-21 17:11:02,594 INFO L902 garLoopResultBuilder]: At program point scsi_host_putENTRY(lines 8335 8337) the Hoare annotation is: true [2022-11-21 17:11:02,594 INFO L899 garLoopResultBuilder]: For program point scsi_host_putFINAL(lines 8335 8337) no Hoare annotation was computed. [2022-11-21 17:11:02,594 INFO L899 garLoopResultBuilder]: For program point scsi_host_putEXIT(lines 8335 8337) no Hoare annotation was computed. [2022-11-21 17:11:02,594 INFO L899 garLoopResultBuilder]: For program point hash_64EXIT(lines 6456 6476) no Hoare annotation was computed. [2022-11-21 17:11:02,594 INFO L902 garLoopResultBuilder]: At program point hash_64ENTRY(lines 6456 6476) the Hoare annotation is: true [2022-11-21 17:11:02,595 INFO L899 garLoopResultBuilder]: For program point hash_64FINAL(lines 6456 6476) no Hoare annotation was computed. [2022-11-21 17:11:02,595 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~intEXIT(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,595 INFO L902 garLoopResultBuilder]: At program point ##fun~$Pointer$~TO~intENTRY(line -1) the Hoare annotation is: true [2022-11-21 17:11:02,595 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~intFINAL(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,595 INFO L899 garLoopResultBuilder]: For program point ldv__builtin_expectFINAL(lines 7849 7854) no Hoare annotation was computed. [2022-11-21 17:11:02,595 INFO L902 garLoopResultBuilder]: At program point ldv__builtin_expectENTRY(lines 7849 7854) the Hoare annotation is: true [2022-11-21 17:11:02,595 INFO L899 garLoopResultBuilder]: For program point ldv__builtin_expectEXIT(lines 7849 7854) no Hoare annotation was computed. [2022-11-21 17:11:02,596 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_state_variable_0~0 3)))) (and (or .cse0 (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse1) (or .cse0 (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse1 (not (<= ~ref_cnt~0 1))))) [2022-11-21 17:11:02,596 INFO L899 garLoopResultBuilder]: For program point tgt_openFINAL(lines 7580 7587) no Hoare annotation was computed. [2022-11-21 17:11:02,596 INFO L899 garLoopResultBuilder]: For program point tgt_openEXIT(lines 7580 7587) no Hoare annotation was computed. [2022-11-21 17:11:02,596 INFO L895 garLoopResultBuilder]: At program point scsi_host_lookupENTRY(lines 8332 8334) the Hoare annotation is: (let ((.cse0 (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) (.cse1 (not (= ~ldv_state_variable_0~0 3)))) (and (or (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse0 .cse1 (not (<= ~ref_cnt~0 1))) (or (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse0 .cse1))) [2022-11-21 17:11:02,596 INFO L899 garLoopResultBuilder]: For program point scsi_host_lookupFINAL(lines 8332 8334) no Hoare annotation was computed. [2022-11-21 17:11:02,597 INFO L899 garLoopResultBuilder]: For program point L8333-1(line 8333) no Hoare annotation was computed. [2022-11-21 17:11:02,597 INFO L895 garLoopResultBuilder]: At program point L8333(line 8333) the Hoare annotation is: (let ((.cse0 (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) (.cse1 (not (= ~ldv_state_variable_0~0 3)))) (and (or (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse0 .cse1 (not (<= ~ref_cnt~0 1))) (or (not (= ~ref_cnt~0 0)) (not (= ~ldv_state_variable_1~0 1)) .cse0 .cse1))) [2022-11-21 17:11:02,597 INFO L899 garLoopResultBuilder]: For program point scsi_host_lookupEXIT(lines 8332 8334) no Hoare annotation was computed. [2022-11-21 17:11:02,597 INFO L902 garLoopResultBuilder]: At program point tgt_mmapENTRY(lines 7556 7579) the Hoare annotation is: true [2022-11-21 17:11:02,597 INFO L899 garLoopResultBuilder]: For program point L7576-1(line 7576) no Hoare annotation was computed. [2022-11-21 17:11:02,597 INFO L902 garLoopResultBuilder]: At program point L7576(line 7576) the Hoare annotation is: true [2022-11-21 17:11:02,598 INFO L899 garLoopResultBuilder]: For program point L7571-1(line 7571) no Hoare annotation was computed. [2022-11-21 17:11:02,598 INFO L899 garLoopResultBuilder]: For program point tgt_mmapEXIT(lines 7556 7579) no Hoare annotation was computed. [2022-11-21 17:11:02,598 INFO L902 garLoopResultBuilder]: At program point L7571(line 7571) the Hoare annotation is: true [2022-11-21 17:11:02,598 INFO L899 garLoopResultBuilder]: For program point L7572(lines 7572 7575) no Hoare annotation was computed. [2022-11-21 17:11:02,598 INFO L899 garLoopResultBuilder]: For program point tgt_mmapFINAL(lines 7556 7579) no Hoare annotation was computed. [2022-11-21 17:11:02,598 INFO L899 garLoopResultBuilder]: For program point L7564(lines 7564 7569) no Hoare annotation was computed. [2022-11-21 17:11:02,598 INFO L899 garLoopResultBuilder]: For program point L7560(lines 7560 7563) no Hoare annotation was computed. [2022-11-21 17:11:02,599 INFO L902 garLoopResultBuilder]: At program point scsi_release_buffersENTRY(lines 8342 8344) the Hoare annotation is: true [2022-11-21 17:11:02,599 INFO L899 garLoopResultBuilder]: For program point scsi_release_buffersFINAL(lines 8342 8344) no Hoare annotation was computed. [2022-11-21 17:11:02,599 INFO L899 garLoopResultBuilder]: For program point scsi_release_buffersEXIT(lines 8342 8344) no Hoare annotation was computed. [2022-11-21 17:11:02,599 INFO L899 garLoopResultBuilder]: For program point kmem_cache_destroyEXIT(lines 8280 8282) no Hoare annotation was computed. [2022-11-21 17:11:02,599 INFO L902 garLoopResultBuilder]: At program point kmem_cache_destroyENTRY(lines 8280 8282) the Hoare annotation is: true [2022-11-21 17:11:02,599 INFO L899 garLoopResultBuilder]: For program point kmem_cache_destroyFINAL(lines 8280 8282) no Hoare annotation was computed. [2022-11-21 17:11:02,599 INFO L902 garLoopResultBuilder]: At program point L8239(lines 8238 8240) the Hoare annotation is: true [2022-11-21 17:11:02,600 INFO L902 garLoopResultBuilder]: At program point spin_unlock_irqrestoreENTRY(lines 6348 6354) the Hoare annotation is: true [2022-11-21 17:11:02,600 INFO L899 garLoopResultBuilder]: For program point spin_unlock_irqrestoreEXIT(lines 6348 6354) no Hoare annotation was computed. [2022-11-21 17:11:02,600 INFO L899 garLoopResultBuilder]: For program point spin_unlock_irqrestoreFINAL(lines 6348 6354) no Hoare annotation was computed. [2022-11-21 17:11:02,600 INFO L895 garLoopResultBuilder]: At program point ldv_mallocENTRY(lines 6377 6386) the Hoare annotation is: (let ((.cse1 (not (= ~ldv_state_variable_0~0 3))) (.cse2 (not (= ~ref_cnt~0 0))) (.cse0 (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)))) (and (or (not (= ~ldv_state_variable_1~0 2)) (not (<= 1 ~ref_cnt~0)) .cse0 .cse1 (not (<= ~ref_cnt~0 1))) (or .cse2 (not (= ~ldv_state_variable_1~0 1)) .cse0 .cse1) (or (not (= ~ldv_state_variable_1~0 0)) (not (= ~ldv_retval_1~0 0)) .cse2 (not (= ~ldv_state_variable_0~0 1)) .cse0))) [2022-11-21 17:11:02,600 INFO L899 garLoopResultBuilder]: For program point L6369(lines 6369 6371) no Hoare annotation was computed. [2022-11-21 17:11:02,600 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 6377 6386) no Hoare annotation was computed. [2022-11-21 17:11:02,601 INFO L899 garLoopResultBuilder]: For program point L6379(lines 6379 6385) no Hoare annotation was computed. [2022-11-21 17:11:02,601 INFO L902 garLoopResultBuilder]: At program point L6375(lines 6373 6376) the Hoare annotation is: true [2022-11-21 17:11:02,601 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 6377 6386) no Hoare annotation was computed. [2022-11-21 17:11:02,601 INFO L899 garLoopResultBuilder]: For program point L6370(line 6370) no Hoare annotation was computed. [2022-11-21 17:11:02,601 INFO L899 garLoopResultBuilder]: For program point destroy_workqueueFINAL(lines 8261 8263) no Hoare annotation was computed. [2022-11-21 17:11:02,601 INFO L899 garLoopResultBuilder]: For program point destroy_workqueueEXIT(lines 8261 8263) no Hoare annotation was computed. [2022-11-21 17:11:02,601 INFO L902 garLoopResultBuilder]: At program point destroy_workqueueENTRY(lines 8261 8263) the Hoare annotation is: true [2022-11-21 17:11:02,602 INFO L899 garLoopResultBuilder]: For program point _copy_from_userEXIT(lines 8231 8233) no Hoare annotation was computed. [2022-11-21 17:11:02,602 INFO L902 garLoopResultBuilder]: At program point _copy_from_userENTRY(lines 8231 8233) the Hoare annotation is: true [2022-11-21 17:11:02,602 INFO L899 garLoopResultBuilder]: For program point _copy_from_userFINAL(lines 8231 8233) no Hoare annotation was computed. [2022-11-21 17:11:02,602 INFO L902 garLoopResultBuilder]: At program point L8206(lines 8205 8207) the Hoare annotation is: true [2022-11-21 17:11:02,602 INFO L902 garLoopResultBuilder]: At program point list_addENTRY(lines 6292 6298) the Hoare annotation is: true [2022-11-21 17:11:02,602 INFO L899 garLoopResultBuilder]: For program point list_addFINAL(lines 6292 6298) no Hoare annotation was computed. [2022-11-21 17:11:02,602 INFO L899 garLoopResultBuilder]: For program point list_addEXIT(lines 6292 6298) no Hoare annotation was computed. [2022-11-21 17:11:02,603 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7750) no Hoare annotation was computed. [2022-11-21 17:11:02,603 INFO L899 garLoopResultBuilder]: For program point L7137(lines 7137 7142) no Hoare annotation was computed. [2022-11-21 17:11:02,603 INFO L899 garLoopResultBuilder]: For program point L7699-1(line 7699) no Hoare annotation was computed. [2022-11-21 17:11:02,603 INFO L895 garLoopResultBuilder]: At program point L7699(line 7699) the Hoare annotation is: (and (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) (= ~ldv_state_variable_0~0 3) (<= ~ref_cnt~0 1)) [2022-11-21 17:11:02,603 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)) [2022-11-21 17:11:02,603 INFO L899 garLoopResultBuilder]: For program point L7716(line 7716) no Hoare annotation was computed. [2022-11-21 17:11:02,604 INFO L899 garLoopResultBuilder]: For program point L7105-1(line 7105) no Hoare annotation was computed. [2022-11-21 17:11:02,604 INFO L902 garLoopResultBuilder]: At program point L7105(line 7105) the Hoare annotation is: true [2022-11-21 17:11:02,604 INFO L899 garLoopResultBuilder]: For program point L7650-1(line 7650) no Hoare annotation was computed. [2022-11-21 17:11:02,604 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,604 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)) [2022-11-21 17:11:02,604 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)) (.cse2 (not (= |ULTIMATE.start_scsi_tgt_if_init_~err~20#1| 0))) (.cse3 (= ~ref_cnt~0 0))) (or (and .cse0 .cse1 .cse2 (= ~ldv_state_variable_1~0 0) .cse3) (and .cse0 .cse1 .cse2 (= ~ldv_state_variable_1~0 1) .cse3))) [2022-11-21 17:11:02,605 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)) [2022-11-21 17:11:02,605 INFO L899 garLoopResultBuilder]: For program point L8278-1(line 8278) no Hoare annotation was computed. [2022-11-21 17:11:02,605 INFO L899 garLoopResultBuilder]: For program point L7750(line 7750) no Hoare annotation was computed. [2022-11-21 17:11:02,605 INFO L899 garLoopResultBuilder]: For program point L7717-2(lines 7691 7756) no Hoare annotation was computed. [2022-11-21 17:11:02,605 INFO L899 garLoopResultBuilder]: For program point L7651(lines 7651 7654) no Hoare annotation was computed. [2022-11-21 17:11:02,605 INFO L899 garLoopResultBuilder]: For program point L7717(lines 7717 7721) no Hoare annotation was computed. [2022-11-21 17:11:02,605 INFO L899 garLoopResultBuilder]: For program point L7750-1(line 7750) no Hoare annotation was computed. [2022-11-21 17:11:02,606 INFO L899 garLoopResultBuilder]: For program point L7090(lines 7090 7093) no Hoare annotation was computed. [2022-11-21 17:11:02,606 INFO L895 garLoopResultBuilder]: At program point L7718(line 7718) the Hoare annotation is: (and (<= ~ref_cnt~0 0) (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 1) (= ~ldv_state_variable_0~0 3)) [2022-11-21 17:11:02,606 INFO L895 garLoopResultBuilder]: At program point L7107-1(lines 7102 7110) the Hoare annotation is: (= ~ldv_state_variable_1~0 0) [2022-11-21 17:11:02,606 INFO L895 garLoopResultBuilder]: At program point L7107(line 7107) the Hoare annotation is: (= ~ldv_state_variable_1~0 0) [2022-11-21 17:11:02,606 INFO L899 garLoopResultBuilder]: For program point L7718-1(line 7718) no Hoare annotation was computed. [2022-11-21 17:11:02,606 INFO L902 garLoopResultBuilder]: At program point L7173(lines 7115 7175) the Hoare annotation is: true [2022-11-21 17:11:02,606 INFO L899 garLoopResultBuilder]: For program point L7735(line 7735) no Hoare annotation was computed. [2022-11-21 17:11:02,607 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)) (.cse2 (not (= |ULTIMATE.start_scsi_tgt_if_init_~err~20#1| 0))) (.cse3 (not (= |ULTIMATE.start_scsi_tgt_if_init_#res#1| 0))) (.cse4 (not (= |ULTIMATE.start_scsi_tgt_init_~err~11#1| 0))) (.cse5 (= ~ref_cnt~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~ldv_state_variable_1~0 0) .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~ldv_state_variable_1~0 1) .cse5))) [2022-11-21 17:11:02,607 INFO L899 garLoopResultBuilder]: For program point L7669(line 7669) no Hoare annotation was computed. [2022-11-21 17:11:02,607 INFO L899 garLoopResultBuilder]: For program point L8181(lines 8181 8184) no Hoare annotation was computed. [2022-11-21 17:11:02,607 INFO L895 garLoopResultBuilder]: At program point L7670(lines 7647 7672) the Hoare annotation is: (let ((.cse3 (= |ULTIMATE.start_scsi_tgt_if_init_#res#1| 0)) (.cse0 (= ~ldv_state_variable_0~0 1)) (.cse1 (= ~ldv_retval_1~0 0)) (.cse2 (not (= |ULTIMATE.start_scsi_tgt_if_init_~err~20#1| 0))) (.cse5 (= ~ldv_state_variable_1~0 1)) (.cse4 (= ~ref_cnt~0 0))) (or (and .cse0 .cse1 .cse2 (not .cse3) (= ~ldv_state_variable_1~0 0) .cse4) (and .cse0 .cse1 .cse5 .cse4 .cse3) (and .cse0 .cse1 .cse2 .cse5 .cse4))) [2022-11-21 17:11:02,607 INFO L899 garLoopResultBuilder]: For program point L7736(lines 7736 7744) no Hoare annotation was computed. [2022-11-21 17:11:02,608 INFO L899 garLoopResultBuilder]: For program point L7125(lines 7125 7168) no Hoare annotation was computed. [2022-11-21 17:11:02,608 INFO L899 garLoopResultBuilder]: For program point L7126(line 7126) no Hoare annotation was computed. [2022-11-21 17:11:02,608 INFO L899 garLoopResultBuilder]: For program point L8183-1(lines 8180 8194) no Hoare annotation was computed. [2022-11-21 17:11:02,608 INFO L899 garLoopResultBuilder]: For program point L7159(line 7159) no Hoare annotation was computed. [2022-11-21 17:11:02,608 INFO L902 garLoopResultBuilder]: At program point L8183(line 8183) the Hoare annotation is: true [2022-11-21 17:11:02,608 INFO L899 garLoopResultBuilder]: For program point L7704(line 7704) no Hoare annotation was computed. [2022-11-21 17:11:02,608 INFO L899 garLoopResultBuilder]: For program point L7737-1(line 7737) no Hoare annotation was computed. [2022-11-21 17:11:02,609 INFO L895 garLoopResultBuilder]: At program point L7737(line 7737) the Hoare annotation is: (and (<= ~ref_cnt~0 0) (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 1) (= ~ldv_state_variable_0~0 3)) [2022-11-21 17:11:02,609 INFO L899 garLoopResultBuilder]: For program point L7754(line 7754) no Hoare annotation was computed. [2022-11-21 17:11:02,609 INFO L899 garLoopResultBuilder]: For program point L7655-1(line 7655) no Hoare annotation was computed. [2022-11-21 17:11:02,609 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)) [2022-11-21 17:11:02,609 INFO L899 garLoopResultBuilder]: For program point L7077(lines 7077 7080) no Hoare annotation was computed. [2022-11-21 17:11:02,609 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,609 INFO L899 garLoopResultBuilder]: For program point L7738(lines 7738 7742) no Hoare annotation was computed. [2022-11-21 17:11:02,610 INFO L899 garLoopResultBuilder]: For program point L7127(lines 7127 7130) no Hoare annotation was computed. [2022-11-21 17:11:02,610 INFO L899 garLoopResultBuilder]: For program point L7705-2(lines 7691 7756) no Hoare annotation was computed. [2022-11-21 17:11:02,610 INFO L899 garLoopResultBuilder]: For program point L7705(lines 7705 7709) no Hoare annotation was computed. [2022-11-21 17:11:02,610 INFO L899 garLoopResultBuilder]: For program point L7144(line 7144) no Hoare annotation was computed. [2022-11-21 17:11:02,610 INFO L899 garLoopResultBuilder]: For program point L7656(lines 7656 7659) no Hoare annotation was computed. [2022-11-21 17:11:02,610 INFO L895 garLoopResultBuilder]: At program point L7838(lines 7831 7840) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (<= ~ref_cnt~0 0) (= ~ldv_retval_1~0 0) (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 1)) [2022-11-21 17:11:02,611 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7750) no Hoare annotation was computed. [2022-11-21 17:11:02,611 INFO L895 garLoopResultBuilder]: At program point L7706(line 7706) the Hoare annotation is: (and (<= ~ref_cnt~0 0) (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 1) (= ~ldv_state_variable_0~0 3)) [2022-11-21 17:11:02,611 INFO L899 garLoopResultBuilder]: For program point L7706-1(line 7706) no Hoare annotation was computed. [2022-11-21 17:11:02,611 INFO L899 garLoopResultBuilder]: For program point L7723-1(line 7723) no Hoare annotation was computed. [2022-11-21 17:11:02,611 INFO L895 garLoopResultBuilder]: At program point L7723(line 7723) the Hoare annotation is: (and (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) (= ~ldv_state_variable_0~0 3) (<= ~ref_cnt~0 1)) [2022-11-21 17:11:02,611 INFO L902 garLoopResultBuilder]: At program point L8301(lines 8300 8302) the Hoare annotation is: true [2022-11-21 17:11:02,611 INFO L899 garLoopResultBuilder]: For program point L7145(lines 7145 7157) no Hoare annotation was computed. [2022-11-21 17:11:02,612 INFO L899 garLoopResultBuilder]: For program point L7740-1(line 7740) no Hoare annotation was computed. [2022-11-21 17:11:02,612 INFO L899 garLoopResultBuilder]: For program point L7740(line 7740) no Hoare annotation was computed. [2022-11-21 17:11:02,612 INFO L902 garLoopResultBuilder]: At program point L7641-1(line 7641) the Hoare annotation is: true [2022-11-21 17:11:02,612 INFO L895 garLoopResultBuilder]: At program point L7096(lines 7075 7100) the Hoare annotation is: (let ((.cse1 (= ~ldv_retval_1~0 0)) (.cse2 (not (= |ULTIMATE.start_scsi_tgt_if_init_~err~20#1| 0))) (.cse3 (not (= |ULTIMATE.start_scsi_tgt_if_init_#res#1| 0))) (.cse4 (not (= |ULTIMATE.start_scsi_tgt_init_~err~11#1| 0))) (.cse5 (= ~ref_cnt~0 0)) (.cse0 (= ~ldv_state_variable_0~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~ldv_state_variable_1~0 0) .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~ldv_state_variable_1~0 1) .cse5) (and .cse0 (<= (+ |ULTIMATE.start_scsi_tgt_init_~err~11#1| 12) 0)))) [2022-11-21 17:11:02,612 INFO L902 garLoopResultBuilder]: At program point L7641(line 7641) the Hoare annotation is: true [2022-11-21 17:11:02,612 INFO L899 garLoopResultBuilder]: For program point L7691(lines 7691 7756) no Hoare annotation was computed. [2022-11-21 17:11:02,613 INFO L895 garLoopResultBuilder]: At program point L7757(lines 7687 7760) the Hoare annotation is: (let ((.cse0 (= ~ldv_state_variable_0~0 3))) (or (and (<= ~ref_cnt~0 0) (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 1) .cse0) (and (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) .cse0 (<= ~ref_cnt~0 1)))) [2022-11-21 17:11:02,613 INFO L895 garLoopResultBuilder]: At program point L8319(lines 8318 8320) the Hoare annotation is: (and (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) (= ~ldv_state_variable_0~0 3) (<= ~ref_cnt~0 1)) [2022-11-21 17:11:02,613 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7740) no Hoare annotation was computed. [2022-11-21 17:11:02,613 INFO L899 garLoopResultBuilder]: For program point L7642(line 7642) no Hoare annotation was computed. [2022-11-21 17:11:02,613 INFO L899 garLoopResultBuilder]: For program point L8187-1(lines 8180 8194) no Hoare annotation was computed. [2022-11-21 17:11:02,613 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,614 INFO L902 garLoopResultBuilder]: At program point L8187(line 8187) the Hoare annotation is: true [2022-11-21 17:11:02,614 INFO L899 garLoopResultBuilder]: For program point L7147(lines 7147 7150) no Hoare annotation was computed. [2022-11-21 17:11:02,614 INFO L899 garLoopResultBuilder]: For program point L7692(line 7692) no Hoare annotation was computed. [2022-11-21 17:11:02,614 INFO L899 garLoopResultBuilder]: For program point L7147-2(lines 7145 7156) no Hoare annotation was computed. [2022-11-21 17:11:02,614 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7740) no Hoare annotation was computed. [2022-11-21 17:11:02,614 INFO L899 garLoopResultBuilder]: For program point L7098(line 7098) no Hoare annotation was computed. [2022-11-21 17:11:02,615 INFO L899 garLoopResultBuilder]: For program point L7693-2(lines 7691 7756) no Hoare annotation was computed. [2022-11-21 17:11:02,615 INFO L899 garLoopResultBuilder]: For program point L7693(lines 7693 7697) no Hoare annotation was computed. [2022-11-21 17:11:02,615 INFO L895 garLoopResultBuilder]: At program point L8288(lines 8287 8289) the Hoare annotation is: (and (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) (= ~ldv_state_variable_0~0 3) (<= ~ref_cnt~0 1)) [2022-11-21 17:11:02,615 INFO L895 garLoopResultBuilder]: At program point L7099(lines 7070 7101) the Hoare annotation is: (let ((.cse3 (= ~ldv_state_variable_1~0 0)) (.cse5 (not (= |ULTIMATE.start_scsi_tgt_if_init_~err~20#1| 0))) (.cse6 (not (= |ULTIMATE.start_scsi_tgt_if_init_#res#1| 0))) (.cse7 (not (= |ULTIMATE.start_scsi_tgt_init_~err~11#1| 0))) (.cse8 (= ~ldv_state_variable_1~0 1)) (.cse4 (= ~ref_cnt~0 0)) (.cse0 (= ~ldv_state_variable_0~0 1)) (.cse1 (= |ULTIMATE.start_scsi_tgt_init_#res#1| 0)) (.cse2 (= ~ldv_retval_1~0 0))) (or (and .cse0 (<= (+ |ULTIMATE.start_scsi_tgt_init_#res#1| 12) 0)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse5 .cse6 .cse3 .cse7 .cse4) (and .cse0 .cse2 .cse5 .cse6 .cse7 .cse8 .cse4) (and .cse0 .cse1 .cse2 .cse8 .cse4) (and .cse0 .cse1 .cse2 (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) (<= ~ref_cnt~0 1)))) [2022-11-21 17:11:02,615 INFO L899 garLoopResultBuilder]: For program point L7132(line 7132) no Hoare annotation was computed. [2022-11-21 17:11:02,615 INFO L895 garLoopResultBuilder]: At program point L7644(lines 7638 7646) the Hoare annotation is: (= ~ldv_state_variable_1~0 0) [2022-11-21 17:11:02,616 INFO L895 garLoopResultBuilder]: At program point L7694(line 7694) the Hoare annotation is: (and (<= ~ref_cnt~0 0) (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 1) (= ~ldv_state_variable_0~0 3)) [2022-11-21 17:11:02,616 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)) [2022-11-21 17:11:02,616 INFO L899 garLoopResultBuilder]: For program point L7694-1(line 7694) no Hoare annotation was computed. [2022-11-21 17:11:02,616 INFO L899 garLoopResultBuilder]: For program point L7661(lines 7661 7664) no Hoare annotation was computed. [2022-11-21 17:11:02,616 INFO L899 garLoopResultBuilder]: For program point L7711-1(line 7711) no Hoare annotation was computed. [2022-11-21 17:11:02,616 INFO L899 garLoopResultBuilder]: For program point L7166(line 7166) no Hoare annotation was computed. [2022-11-21 17:11:02,617 INFO L895 garLoopResultBuilder]: At program point L7711(line 7711) the Hoare annotation is: (and (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) (= ~ldv_state_variable_0~0 3) (<= ~ref_cnt~0 1)) [2022-11-21 17:11:02,617 INFO L899 garLoopResultBuilder]: For program point L7133(lines 7133 7164) no Hoare annotation was computed. [2022-11-21 17:11:02,617 INFO L895 garLoopResultBuilder]: At program point L7662(lines 7649 7671) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (<= ~ref_cnt~0 0) (= ~ldv_retval_1~0 0) (not (= |ULTIMATE.start_scsi_tgt_if_init_~err~20#1| 0)) (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 1)) [2022-11-21 17:11:02,617 INFO L899 garLoopResultBuilder]: For program point L7728(line 7728) no Hoare annotation was computed. [2022-11-21 17:11:02,617 INFO L899 garLoopResultBuilder]: For program point L7084(lines 7084 7088) no Hoare annotation was computed. [2022-11-21 17:11:02,617 INFO L902 garLoopResultBuilder]: At program point L8191-1(lines 8178 8195) the Hoare annotation is: true [2022-11-21 17:11:02,618 INFO L902 garLoopResultBuilder]: At program point L8191(line 8191) the Hoare annotation is: true [2022-11-21 17:11:02,618 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 17:11:02,618 INFO L895 garLoopResultBuilder]: At program point L7828(lines 7821 7830) the Hoare annotation is: (= ~ldv_state_variable_1~0 0) [2022-11-21 17:11:02,618 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)) [2022-11-21 17:11:02,618 INFO L899 garLoopResultBuilder]: For program point L7729(lines 7729 7733) no Hoare annotation was computed. [2022-11-21 17:11:02,618 INFO L899 garLoopResultBuilder]: For program point L7746(line 7746) no Hoare annotation was computed. [2022-11-21 17:11:02,618 INFO L899 garLoopResultBuilder]: For program point L7135(lines 7135 7161) no Hoare annotation was computed. [2022-11-21 17:11:02,619 INFO L899 garLoopResultBuilder]: For program point L7747(lines 7747 7752) no Hoare annotation was computed. [2022-11-21 17:11:02,619 INFO L899 garLoopResultBuilder]: For program point L7136(line 7136) no Hoare annotation was computed. [2022-11-21 17:11:02,619 INFO L895 garLoopResultBuilder]: At program point L7169(lines 7118 7174) the Hoare annotation is: (let ((.cse2 (= ~ldv_state_variable_0~0 3)) (.cse0 (= ~ldv_state_variable_1~0 0)) (.cse1 (= ~ref_cnt~0 0))) (or (and .cse0 .cse1 .cse2) (and (<= ~ref_cnt~0 0) (<= 0 ~ref_cnt~0) (= ~ldv_state_variable_1~0 1) .cse2) (and (= ~ldv_state_variable_1~0 2) (<= 1 ~ref_cnt~0) .cse2 (<= ~ref_cnt~0 1)) (and (= ~ldv_state_variable_0~0 1) (= ~ldv_retval_1~0 0) .cse0 .cse1))) [2022-11-21 17:11:02,619 INFO L902 garLoopResultBuilder]: At program point L7153(lines 7118 7174) the Hoare annotation is: true [2022-11-21 17:11:02,619 INFO L902 garLoopResultBuilder]: At program point scsi_tgt_cmd_to_hostENTRY(lines 6765 6771) the Hoare annotation is: true [2022-11-21 17:11:02,619 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_to_hostFINAL(lines 6765 6771) no Hoare annotation was computed. [2022-11-21 17:11:02,620 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_to_hostEXIT(lines 6765 6771) no Hoare annotation was computed. [2022-11-21 17:11:02,620 INFO L902 garLoopResultBuilder]: At program point spinlock_checkENTRY(lines 6342 6347) the Hoare annotation is: true [2022-11-21 17:11:02,620 INFO L899 garLoopResultBuilder]: For program point spinlock_checkEXIT(lines 6342 6347) no Hoare annotation was computed. [2022-11-21 17:11:02,620 INFO L899 garLoopResultBuilder]: For program point spinlock_checkFINAL(lines 6342 6347) no Hoare annotation was computed. [2022-11-21 17:11:02,624 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] [2022-11-21 17:11:02,626 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:11:02,650 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-21 17:11:02,664 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-21 17:11:02,664 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-21 17:11:02,664 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-21 17:11:02,665 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-21 17:11:02,665 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-21 17:11:02,665 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-21 17:11:02,665 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-21 17:11:02,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:11:02 BoogieIcfgContainer [2022-11-21 17:11:02,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:11:02,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:11:02,680 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:11:02,681 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:11:02,681 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:10:04" (3/4) ... [2022-11-21 17:11:02,684 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:11:02,691 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_idx_inc [2022-11-21 17:11:02,692 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __raw_spin_lock_init [2022-11-21 17:11:02,692 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_exit [2022-11-21 17:11:02,692 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uspace_ring_map [2022-11-21 17:11:02,693 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_destroy [2022-11-21 17:11:02,693 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_write [2022-11-21 17:11:02,693 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_init [2022-11-21 17:11:02,693 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2022-11-21 17:11:02,693 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2022-11-21 17:11:02,693 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_free [2022-11-21 17:11:02,693 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_head_event [2022-11-21 17:11:02,693 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_poll [2022-11-21 17:11:02,694 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_unmap_user_pages [2022-11-21 17:11:02,694 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _raw_spin_lock_irqsave [2022-11-21 17:11:02,694 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_put [2022-11-21 17:11:02,694 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_64 [2022-11-21 17:11:02,694 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2022-11-21 17:11:02,694 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2022-11-21 17:11:02,694 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_open [2022-11-21 17:11:02,694 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_lookup [2022-11-21 17:11:02,695 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_mmap [2022-11-21 17:11:02,695 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_release_buffers [2022-11-21 17:11:02,695 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_destroy [2022-11-21 17:11:02,695 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_unlock_irqrestore [2022-11-21 17:11:02,695 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-11-21 17:11:02,695 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure destroy_workqueue [2022-11-21 17:11:02,695 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2022-11-21 17:11:02,695 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2022-11-21 17:11:02,696 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_to_host [2022-11-21 17:11:02,696 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spinlock_check [2022-11-21 17:11:02,726 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 180 nodes and edges [2022-11-21 17:11:02,729 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2022-11-21 17:11:02,730 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-21 17:11:02,732 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-21 17:11:02,734 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 17:11:02,736 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:11:02,767 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && ldv_state_variable_1 == 0) && !(err == 0)) && ref_cnt == 0) || ((((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && !(err == 0)) && ldv_state_variable_1 == 1) && ref_cnt == 0)) || (ldv_state_variable_0 == 1 && err + 12 <= 0) [2022-11-21 17:11:02,768 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((ldv_state_variable_0 == 1 && \result + 12 <= 0) || ((((ldv_state_variable_0 == 1 && \result == 0) && ldv_retval_1 == 0) && ldv_state_variable_1 == 0) && ref_cnt == 0)) || ((((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && ldv_state_variable_1 == 0) && !(err == 0)) && ref_cnt == 0)) || ((((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && !(err == 0)) && ldv_state_variable_1 == 1) && ref_cnt == 0)) || ((((ldv_state_variable_0 == 1 && \result == 0) && ldv_retval_1 == 0) && ldv_state_variable_1 == 1) && 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) [2022-11-21 17:11:02,769 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && ldv_state_variable_1 == 0) && ref_cnt == 0) || ((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ldv_state_variable_1 == 1) && ref_cnt == 0) && \result == 0)) || ((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && ldv_state_variable_1 == 1) && ref_cnt == 0) [2022-11-21 17:11:02,770 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && ldv_state_variable_1 == 0) && !(err == 0)) && ref_cnt == 0) || ((((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && !(err == 0)) && ldv_state_variable_1 == 1) && ref_cnt == 0) [2022-11-21 17:11:02,772 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) [2022-11-21 17:11:02,891 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:11:02,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:11:02,892 INFO L158 Benchmark]: Toolchain (without parser) took 61930.74ms. Allocated memory was 190.8MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 148.9MB in the beginning and 535.0MB in the end (delta: -386.1MB). Peak memory consumption was 631.5MB. Max. memory is 16.1GB. [2022-11-21 17:11:02,892 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 138.4MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:11:02,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2036.24ms. Allocated memory is still 190.8MB. Free memory was 148.9MB in the beginning and 129.0MB in the end (delta: 19.9MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. [2022-11-21 17:11:02,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 154.37ms. Allocated memory is still 190.8MB. Free memory was 129.0MB in the beginning and 120.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 17:11:02,893 INFO L158 Benchmark]: Boogie Preprocessor took 78.56ms. Allocated memory is still 190.8MB. Free memory was 120.6MB in the beginning and 112.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 17:11:02,893 INFO L158 Benchmark]: RCFGBuilder took 1684.97ms. Allocated memory is still 190.8MB. Free memory was 112.2MB in the beginning and 76.9MB in the end (delta: 35.4MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2022-11-21 17:11:02,894 INFO L158 Benchmark]: TraceAbstraction took 57755.52ms. Allocated memory was 190.8MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 75.8MB in the beginning and 555.2MB in the end (delta: -479.4MB). Peak memory consumption was 579.7MB. Max. memory is 16.1GB. [2022-11-21 17:11:02,894 INFO L158 Benchmark]: Witness Printer took 211.27ms. Allocated memory is still 1.2GB. Free memory was 555.2MB in the beginning and 535.0MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-21 17:11:02,895 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 138.4MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2036.24ms. Allocated memory is still 190.8MB. Free memory was 148.9MB in the beginning and 129.0MB in the end (delta: 19.9MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 154.37ms. Allocated memory is still 190.8MB. Free memory was 129.0MB in the beginning and 120.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.56ms. Allocated memory is still 190.8MB. Free memory was 120.6MB in the beginning and 112.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1684.97ms. Allocated memory is still 190.8MB. Free memory was 112.2MB in the beginning and 76.9MB in the end (delta: 35.4MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * TraceAbstraction took 57755.52ms. Allocated memory was 190.8MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 75.8MB in the beginning and 555.2MB in the end (delta: -479.4MB). Peak memory consumption was 579.7MB. Max. memory is 16.1GB. * Witness Printer took 211.27ms. Allocated memory is still 1.2GB. Free memory was 555.2MB in the beginning and 535.0MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$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, 393 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 57.6s, OverallIterations: 25, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 25.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15148 SdHoareTripleChecker+Valid, 19.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14155 mSDsluCounter, 36005 SdHoareTripleChecker+Invalid, 16.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24558 mSDsCounter, 4954 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13945 IncrementalHoareTripleChecker+Invalid, 18899 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4954 mSolverCounterUnsat, 11447 mSDtfsCounter, 13945 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1764 GetRequests, 1590 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4183occurred in iteration=19, InterpolantAutomatonStates: 168, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 25 MinimizatonAttempts, 14863 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 156 LocationsWithAnnotation, 13207 PreInvPairs, 13546 NumberOfFragments, 1647 HoareAnnotationTreeSize, 13207 FomulaSimplifications, 360208 FormulaSimplificationTreeSizeReduction, 7.4s HoareSimplificationTime, 156 FomulaSimplificationsInter, 76120 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 3277 NumberOfCodeBlocks, 3277 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 3556 ConstructedInterpolants, 0 QuantifiedInterpolants, 5998 SizeOfPredicates, 4 NumberOfNonLiveVariables, 10908 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 41 InterpolantComputations, 21 PerfectInterpolantSequences, 1730/1851 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_state_variable_1 == 2) || (i <= 2147483646 && 1 <= i)) || !(1 <= ref_cnt)) || i == 0) || !(ldv_state_variable_0 == 3)) || !(ref_cnt <= 1)) && (((((i <= 2147483646 && 1 <= i) || !(ref_cnt == 0)) || i == 0) || !(ldv_state_variable_1 == 1)) || !(ldv_state_variable_0 == 3)) - 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_state_variable_1 == 2) || !(1 <= ref_cnt)) || (1 <= i && i < 2147483646)) || i == 0) || !(ldv_state_variable_0 == 3)) || !(ref_cnt <= 1)) && ((((!(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_state_variable_1 == 2) || !(1 <= ref_cnt)) || (1 <= i && i < 2147483646)) || i == 0) || !(ldv_state_variable_0 == 3)) || !(ref_cnt <= 1)) && ((((!(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: ((((i <= 2147483646 && 1 <= i) || !(ref_cnt == 0)) || !(ldv_state_variable_1 == 1)) || !(ldv_state_variable_0 == 3)) && ((((!(ldv_state_variable_1 == 2) || (i <= 2147483646 && 1 <= i)) || !(1 <= ref_cnt)) || !(ldv_state_variable_0 == 3)) || !(ref_cnt <= 1)) - InvariantResult [Line: 8287]: Loop Invariant Derived loop invariant: ((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 && ldv_retval_1 == 0) && !(err == 0)) && ldv_state_variable_1 == 0) && ref_cnt == 0) || ((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && ldv_state_variable_1 == 1) && ref_cnt == 0) - InvariantResult [Line: 7118]: Loop Invariant Derived loop invariant: ((((ldv_state_variable_1 == 0 && ref_cnt == 0) && ldv_state_variable_0 == 3) || (((ref_cnt <= 0 && 0 <= ref_cnt) && ldv_state_variable_1 == 1) && ldv_state_variable_0 == 3)) || (((ldv_state_variable_1 == 2 && 1 <= ref_cnt) && ldv_state_variable_0 == 3) && ref_cnt <= 1)) || (((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ldv_state_variable_1 == 0) && ref_cnt == 0) - 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 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && ldv_state_variable_1 == 0) && ref_cnt == 0) || ((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && ldv_state_variable_1 == 1) && ref_cnt == 0) && \result == 0)) || ((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && ldv_state_variable_1 == 1) && ref_cnt == 0) - InvariantResult [Line: 7649]: Loop Invariant Derived loop invariant: ((((ldv_state_variable_0 == 1 && ref_cnt <= 0) && ldv_retval_1 == 0) && !(err == 0)) && 0 <= ref_cnt) && ldv_state_variable_1 == 1 - 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 [2022-11-21 17:11:02,912 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-21 17:11:02,912 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-21 17:11:02,912 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-21 17:11:02,912 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-21 17:11:02,913 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-21 17:11:02,913 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-21 17:11:02,913 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-21 17:11:02,913 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 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && ldv_state_variable_1 == 0) && !(err == 0)) && ref_cnt == 0) || ((((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && !(err == 0)) && ldv_state_variable_1 == 1) && ref_cnt == 0)) || (ldv_state_variable_0 == 1 && err + 12 <= 0) - InvariantResult [Line: 8205]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8318]: Loop Invariant Derived loop invariant: ((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 && ref_cnt <= 0) && ldv_retval_1 == 0) && 0 <= ref_cnt) && ldv_state_variable_1 == 1 - 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_state_variable_1 == 2) || !(1 <= ref_cnt)) || (1 <= i && i < 2147483646)) || i == 0) || !(ldv_state_variable_0 == 3)) || !(ref_cnt <= 1)) && ((((!(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 && \result == 0) && ldv_retval_1 == 0) && ldv_state_variable_1 == 0) && ref_cnt == 0)) || ((((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && ldv_state_variable_1 == 0) && !(err == 0)) && ref_cnt == 0)) || ((((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && !(err == 0)) && ldv_state_variable_1 == 1) && ref_cnt == 0)) || ((((ldv_state_variable_0 == 1 && \result == 0) && ldv_retval_1 == 0) && ldv_state_variable_1 == 1) && 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: (((ref_cnt <= 0 && 0 <= ref_cnt) && ldv_state_variable_1 == 1) && ldv_state_variable_0 == 3) || (((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 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && ldv_state_variable_1 == 0) && !(err == 0)) && ref_cnt == 0) || ((((((ldv_state_variable_0 == 1 && ldv_retval_1 == 0) && !(err == 0)) && !(\result == 0)) && !(err == 0)) && ldv_state_variable_1 == 1) && 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! [2022-11-21 17:11:02,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ed1708-6c17-4aac-9fc5-28804274d4f9/bin/uautomizer-vX5HgA9Q3a/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