./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_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/config/TaipanReach.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_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba --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 Taipan --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 [2022-11-22 01:59:31,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:59:31,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:59:31,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:59:31,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:59:31,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:59:31,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:59:31,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:59:31,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:59:31,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:59:31,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:59:31,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:59:31,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:59:31,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:59:31,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:59:31,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:59:31,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:59:31,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:59:31,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:59:31,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:59:31,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:59:31,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:59:31,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:59:31,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:59:31,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:59:31,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:59:31,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:59:31,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:59:31,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:59:31,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:59:31,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:59:31,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:59:31,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:59:31,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:59:31,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:59:31,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:59:31,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:59:31,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:59:31,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:59:31,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:59:31,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:59:31,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 01:59:31,923 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:59:31,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:59:31,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:59:31,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:59:31,924 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:59:31,924 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:59:31,925 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:59:31,925 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:59:31,925 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:59:31,925 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:59:31,925 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:59:31,925 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:59:31,926 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:59:31,926 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:59:31,926 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:59:31,926 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:59:31,926 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:59:31,927 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:59:31,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:59:31,930 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:59:31,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:59:31,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:59:31,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:59:31,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:59:31,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:59:31,932 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:59:31,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:59:31,932 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:59:31,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:59:31,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:59:31,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:59:31,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:59:31,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:59:31,934 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:59:31,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:59:31,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:59:31,936 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:59:31,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:59:31,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:59:31,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:59:31,937 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_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 [2022-11-22 01:59:32,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:59:32,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:59:32,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:59:32,232 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:59:32,233 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:59:32,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-22 01:59:35,358 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:59:36,023 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:59:36,026 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-22 01:59:36,089 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/data/ded937404/62d66c96270d4cfaa002eb42ffb11b94/FLAGd270b091f [2022-11-22 01:59:36,109 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/data/ded937404/62d66c96270d4cfaa002eb42ffb11b94 [2022-11-22 01:59:36,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:59:36,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:59:36,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:59:36,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:59:36,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:59:36,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:59:36" (1/1) ... [2022-11-22 01:59:36,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19613c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:36, skipping insertion in model container [2022-11-22 01:59:36,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:59:36" (1/1) ... [2022-11-22 01:59:36,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:59:36,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:59:37,707 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_11db9fa1-89e8-4d18-91cb-46b93c5402db/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2022-11-22 01:59:37,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:59:37,919 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:59:38,241 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_11db9fa1-89e8-4d18-91cb-46b93c5402db/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2022-11-22 01:59:38,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:59:38,318 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:59:38,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38 WrapperNode [2022-11-22 01:59:38,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:59:38,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:59:38,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:59:38,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:59:38,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2022-11-22 01:59:38,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2022-11-22 01:59:38,455 INFO L138 Inliner]: procedures = 188, calls = 583, calls flagged for inlining = 72, calls inlined = 47, statements flattened = 1212 [2022-11-22 01:59:38,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:59:38,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:59:38,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:59:38,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:59:38,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2022-11-22 01:59:38,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2022-11-22 01:59:38,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2022-11-22 01:59:38,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2022-11-22 01:59:38,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2022-11-22 01:59:38,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2022-11-22 01:59:38,521 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2022-11-22 01:59:38,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2022-11-22 01:59:38,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:59:38,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:59:38,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:59:38,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:59:38,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2022-11-22 01:59:38,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:59:38,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:59:38,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:59:38,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:59:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:59:38,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:59:38,642 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2022-11-22 01:59:38,642 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2022-11-22 01:59:38,642 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2022-11-22 01:59:38,643 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2022-11-22 01:59:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:59:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2022-11-22 01:59:38,643 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2022-11-22 01:59:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2022-11-22 01:59:38,643 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2022-11-22 01:59:38,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:59:38,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:59:38,644 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-22 01:59:38,644 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-22 01:59:38,644 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2022-11-22 01:59:38,645 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2022-11-22 01:59:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:59:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-22 01:59:38,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-22 01:59:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:59:38,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:59:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2022-11-22 01:59:38,646 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2022-11-22 01:59:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2022-11-22 01:59:38,646 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2022-11-22 01:59:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:59:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2022-11-22 01:59:38,647 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2022-11-22 01:59:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:59:38,647 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:59:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:59:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2022-11-22 01:59:38,648 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2022-11-22 01:59:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:59:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:59:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2022-11-22 01:59:38,648 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2022-11-22 01:59:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-11-22 01:59:38,649 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-11-22 01:59:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:59:38,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:59:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:59:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:59:38,650 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:59:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-22 01:59:38,650 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-22 01:59:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:59:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:59:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2022-11-22 01:59:38,651 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2022-11-22 01:59:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2022-11-22 01:59:38,651 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2022-11-22 01:59:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2022-11-22 01:59:38,652 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2022-11-22 01:59:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-22 01:59:38,652 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-22 01:59:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2022-11-22 01:59:38,652 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2022-11-22 01:59:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2022-11-22 01:59:38,653 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2022-11-22 01:59:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 01:59:38,653 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 01:59:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2022-11-22 01:59:38,654 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2022-11-22 01:59:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2022-11-22 01:59:38,654 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2022-11-22 01:59:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:59:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 01:59:38,654 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 01:59:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:59:38,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:59:39,100 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:59:39,102 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:59:40,377 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:59:40,662 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:59:40,662 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:59:40,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:59:40 BoogieIcfgContainer [2022-11-22 01:59:40,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:59:40,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:59:40,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:59:40,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:59:40,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:59:36" (1/3) ... [2022-11-22 01:59:40,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53482d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:59:40, skipping insertion in model container [2022-11-22 01:59:40,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (2/3) ... [2022-11-22 01:59:40,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53482d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:59:40, skipping insertion in model container [2022-11-22 01:59:40,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:59:40" (3/3) ... [2022-11-22 01:59:40,678 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-22 01:59:40,697 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:59:40,697 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-22 01:59:40,775 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:59:40,784 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=FINITE_AUTOMATA, 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;@8422f4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:59:40,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-22 01:59:40,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 288 states, 179 states have (on average 1.4022346368715084) internal successors, (251), 196 states have internal predecessors, (251), 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) [2022-11-22 01:59:40,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:59:40,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:40,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:40,805 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)] === [2022-11-22 01:59:40,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:40,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1410467608, now seen corresponding path program 1 times [2022-11-22 01:59:40,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:40,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93916317] [2022-11-22 01:59:40,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:40,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:41,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:41,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93916317] [2022-11-22 01:59:41,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93916317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:41,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:41,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:59:41,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525055140] [2022-11-22 01:59:41,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:41,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:59:41,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:41,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:59:41,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:41,457 INFO L87 Difference]: Start difference. First operand has 288 states, 179 states have (on average 1.4022346368715084) internal successors, (251), 196 states have internal predecessors, (251), 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 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:59:41,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:41,763 INFO L93 Difference]: Finished difference Result 647 states and 872 transitions. [2022-11-22 01:59:41,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:59:41,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-22 01:59:41,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:41,781 INFO L225 Difference]: With dead ends: 647 [2022-11-22 01:59:41,781 INFO L226 Difference]: Without dead ends: 336 [2022-11-22 01:59:41,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:41,792 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 93 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:41,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 627 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:59:41,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-11-22 01:59:41,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 332. [2022-11-22 01:59:41,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 211 states have (on average 1.4123222748815165) internal successors, (298), 227 states have internal predecessors, (298), 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) [2022-11-22 01:59:41,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 446 transitions. [2022-11-22 01:59:41,876 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 446 transitions. Word has length 12 [2022-11-22 01:59:41,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:41,876 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 446 transitions. [2022-11-22 01:59:41,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:59:41,877 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 446 transitions. [2022-11-22 01:59:41,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:59:41,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:41,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:41,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:59:41,879 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)] === [2022-11-22 01:59:41,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:41,880 INFO L85 PathProgramCache]: Analyzing trace with hash -2051455032, now seen corresponding path program 1 times [2022-11-22 01:59:41,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:41,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057221771] [2022-11-22 01:59:41,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:41,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:42,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:42,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057221771] [2022-11-22 01:59:42,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057221771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:42,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:42,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:59:42,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478370177] [2022-11-22 01:59:42,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:42,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:59:42,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:42,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:59:42,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:42,130 INFO L87 Difference]: Start difference. First operand 332 states and 446 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-22 01:59:42,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:42,485 INFO L93 Difference]: Finished difference Result 692 states and 925 transitions. [2022-11-22 01:59:42,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:59:42,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 15 [2022-11-22 01:59:42,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:42,492 INFO L225 Difference]: With dead ends: 692 [2022-11-22 01:59:42,493 INFO L226 Difference]: Without dead ends: 361 [2022-11-22 01:59:42,497 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 [2022-11-22 01:59:42,499 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 68 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:42,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 566 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:59:42,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-11-22 01:59:42,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 348. [2022-11-22 01:59:42,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 226 states have (on average 1.415929203539823) internal successors, (320), 241 states have internal predecessors, (320), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-22 01:59:42,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 463 transitions. [2022-11-22 01:59:42,570 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 463 transitions. Word has length 15 [2022-11-22 01:59:42,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:42,571 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 463 transitions. [2022-11-22 01:59:42,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-22 01:59:42,571 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 463 transitions. [2022-11-22 01:59:42,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-22 01:59:42,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:42,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:42,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:59:42,581 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)] === [2022-11-22 01:59:42,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:42,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1913034524, now seen corresponding path program 1 times [2022-11-22 01:59:42,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:42,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845668123] [2022-11-22 01:59:42,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:42,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:42,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:42,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:42,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845668123] [2022-11-22 01:59:42,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845668123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:42,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:42,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:59:42,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586963822] [2022-11-22 01:59:42,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:42,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:59:42,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:42,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:59:42,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:42,877 INFO L87 Difference]: Start difference. First operand 348 states and 463 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-22 01:59:43,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:43,121 INFO L93 Difference]: Finished difference Result 698 states and 938 transitions. [2022-11-22 01:59:43,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:59:43,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 27 [2022-11-22 01:59:43,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:43,127 INFO L225 Difference]: With dead ends: 698 [2022-11-22 01:59:43,128 INFO L226 Difference]: Without dead ends: 360 [2022-11-22 01:59:43,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:43,132 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 3 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:43,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 606 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:59:43,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-22 01:59:43,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 356. [2022-11-22 01:59:43,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 234 states have (on average 1.4102564102564104) internal successors, (330), 249 states have internal predecessors, (330), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-22 01:59:43,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 473 transitions. [2022-11-22 01:59:43,196 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 473 transitions. Word has length 27 [2022-11-22 01:59:43,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:43,197 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 473 transitions. [2022-11-22 01:59:43,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-22 01:59:43,197 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 473 transitions. [2022-11-22 01:59:43,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-22 01:59:43,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:43,200 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] [2022-11-22 01:59:43,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:59:43,201 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)] === [2022-11-22 01:59:43,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:43,202 INFO L85 PathProgramCache]: Analyzing trace with hash 151091841, now seen corresponding path program 1 times [2022-11-22 01:59:43,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:43,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448803444] [2022-11-22 01:59:43,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:43,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:43,443 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:43,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:43,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448803444] [2022-11-22 01:59:43,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448803444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:43,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:43,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:59:43,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700282996] [2022-11-22 01:59:43,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:43,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:59:43,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:43,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:59:43,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:59:43,455 INFO L87 Difference]: Start difference. First operand 356 states and 473 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:59:43,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:43,719 INFO L93 Difference]: Finished difference Result 706 states and 936 transitions. [2022-11-22 01:59:43,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:59:43,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 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 29 [2022-11-22 01:59:43,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:43,724 INFO L225 Difference]: With dead ends: 706 [2022-11-22 01:59:43,724 INFO L226 Difference]: Without dead ends: 356 [2022-11-22 01:59:43,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:59:43,731 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:43,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 916 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:59:43,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-11-22 01:59:43,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2022-11-22 01:59:43,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 234 states have (on average 1.4017094017094016) internal successors, (328), 249 states have internal predecessors, (328), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-22 01:59:43,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 471 transitions. [2022-11-22 01:59:43,766 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 471 transitions. Word has length 29 [2022-11-22 01:59:43,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:43,766 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 471 transitions. [2022-11-22 01:59:43,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:59:43,767 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 471 transitions. [2022-11-22 01:59:43,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-22 01:59:43,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:43,771 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:59:43,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:59:43,772 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)] === [2022-11-22 01:59:43,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:43,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1362136668, now seen corresponding path program 1 times [2022-11-22 01:59:43,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:43,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124612525] [2022-11-22 01:59:43,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:43,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:43,961 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:43,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:43,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124612525] [2022-11-22 01:59:43,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124612525] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:59:43,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000717028] [2022-11-22 01:59:43,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:43,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:59:43,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:59:43,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:59:43,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:59:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:44,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:59:44,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:59:44,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:44,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:59:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:44,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000717028] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:59:44,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [678569279] [2022-11-22 01:59:44,533 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2022-11-22 01:59:44,533 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:59:44,538 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:59:44,544 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:59:44,545 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:59:45,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2022-11-22 01:59:45,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 13 [2022-11-22 01:59:45,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 13 [2022-11-22 01:59:48,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:50,146 INFO L321 Elim1Store]: treesize reduction 500, result has 47.4 percent of original size [2022-11-22 01:59:50,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 51 select indices, 51 select index equivalence classes, 1277 disjoint index pairs (out of 1275 index pairs), introduced 51 new quantified variables, introduced 50 case distinctions, treesize of input 262 treesize of output 614 [2022-11-22 01:59:50,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:50,725 INFO L217 Elim1Store]: Index analysis took 105 ms [2022-11-22 01:59:53,065 INFO L321 Elim1Store]: treesize reduction 900, result has 33.4 percent of original size [2022-11-22 01:59:53,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 53 select indices, 53 select index equivalence classes, 1328 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 100 case distinctions, treesize of input 272 treesize of output 625 [2022-11-22 01:59:54,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 01:59:54,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:59:55,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:55,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-22 01:59:55,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:55,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-22 01:59:57,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:57,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-22 01:59:57,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:57,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-22 02:00:21,762 INFO L197 IcfgInterpreter]: Interpreting procedure tgt_ring_init with input of size 549 for LOIs [2022-11-22 02:00:22,595 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:00:22,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 2085 treesize of output 2085 [2022-11-22 02:00:22,769 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 02:00:22,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 2080 treesize of output 2082 [2022-11-22 02:00:24,026 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:00:24,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 2085 treesize of output 2085 [2022-11-22 02:00:24,155 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 02:00:24,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 2080 treesize of output 2082 [2022-11-22 02:00:27,494 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:00:27,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 2205 treesize of output 2204 [2022-11-22 02:00:27,642 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 02:00:27,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2195 treesize of output 2198 [2022-11-22 02:00:30,902 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:00:30,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 2205 treesize of output 2204 [2022-11-22 02:00:31,027 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 02:00:31,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2195 treesize of output 2198 [2022-11-22 02:00:37,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:00:37,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:00:37,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:00:38,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:00:38,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:00:38,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:00:38,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:00:38,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:00:38,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:00:39,343 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:00:39,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 2205 treesize of output 2204 [2022-11-22 02:00:39,480 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 02:00:39,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2195 treesize of output 2198 [2022-11-22 02:00:42,192 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 02:00:42,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 2080 treesize of output 2082 [2022-11-22 02:00:42,291 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:00:42,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 2085 treesize of output 2085 [2022-11-22 02:00:42,771 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 551 for LOIs [2022-11-22 02:00:43,542 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 562 for LOIs [2022-11-22 02:00:43,925 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 778 for LOIs [2022-11-22 02:00:44,751 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:01:18,965 WARN L233 SmtUtils]: Spent 8.75s on a formula simplification. DAG size of input: 805 DAG size of output: 703 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:01:31,427 WARN L233 SmtUtils]: Spent 8.12s on a formula simplification. DAG size of input: 831 DAG size of output: 826 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:01:50,724 WARN L233 SmtUtils]: Spent 19.01s on a formula simplification. DAG size of input: 746 DAG size of output: 646 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:02:09,172 WARN L233 SmtUtils]: Spent 18.14s on a formula simplification. DAG size of input: 742 DAG size of output: 620 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:02:20,228 WARN L233 SmtUtils]: Spent 10.74s on a formula simplification. DAG size of input: 752 DAG size of output: 638 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:02:31,525 WARN L233 SmtUtils]: Spent 10.94s on a formula simplification. DAG size of input: 756 DAG size of output: 642 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:02:42,145 WARN L233 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 563 DAG size of output: 469 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:02:48,455 WARN L233 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 551 DAG size of output: 489 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:02:54,943 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 559 DAG size of output: 497 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:03:02,904 WARN L233 SmtUtils]: Spent 7.55s on a formula simplification. DAG size of input: 584 DAG size of output: 517 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:03:10,379 WARN L233 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 562 DAG size of output: 503 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:03:17,878 WARN L233 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 574 DAG size of output: 515 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:03:21,121 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6440#(and (= 51 |~#tgt_miscdev~0.base|) (= ~ldvarg9~0.offset 0) (= ~ldvarg5~0.base 0) (<= |tgt_ring_init_~ring#1.base| 47) (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldvarg8~0.offset 0) (= ~tgt_fops_group2~0.base 0) (= ~ldvarg9~0.base 0) (= ~ldvarg7~0.offset 0) (<= 47 |tgt_ring_init_~ring#1.base|) (= ~ldv_retval_1~0 0) (= ~ldvarg3~0.base 0) (<= |tgt_ring_init_#in~ring#1.offset| 0) (= ~ldv_mutex_lock~0 1) (= |~#rx_ring~0.base| 48) (<= (mod |tgt_ring_init_~i~4#1| 4294967296) 15) (= ~scsi_tgt_cmd_cache~0.offset 0) (= ~ldvarg1~0 0) (= ~ldvarg5~0.offset 0) (<= |tgt_ring_init_#in~ring#1.base| 47) (= ~tgt_fops_group1~0.offset 0) (= ~ldvarg2~0.offset 0) (= ~ldv_state_variable_1~0 0) (= 49 |~#tgt_poll_wait~0.base|) (= |~#tgt_miscdev~0.offset| 0) (= |tgt_ring_init_~#__key~3#1.offset| 0) (= |~#tx_ring~0.offset| 0) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |~#rx_ring~0.offset| 0) (= ~ldvarg8~0.base 0) (<= 0 |tgt_ring_init_#in~ring#1.offset|) (<= |tgt_ring_init_~ring#1.offset| 0) (< 2147483646 |tgt_ring_init_~i~4#1|) (= ~tgt_fops_group1~0.base 0) (= ~ref_cnt~0 0) (= ~ldvarg4~0.offset 0) (= |~#tgt_poll_wait~0.offset| 0) (not (= (mod (select (select |#memory_int| |tgt_ring_init_~ring#1.base|) (+ (* 8 |tgt_ring_init_~i~4#1|) |tgt_ring_init_~ring#1.offset| 4)) 18446744073709551616) 0)) (= |~#tgt_fops~0.offset| 0) (<= 0 |tgt_ring_init_~ring#1.offset|) (= ~ldvarg0~0 0) (= |#NULL.offset| 0) (= ~ldvarg4~0.base 0) (= ~ldv_retval_0~0 0) (<= 47 |tgt_ring_init_#in~ring#1.base|) (= |~#tgt_fops~0.base| 50) (= ~ldvarg6~0 0) (= ~tgt_fops_group2~0.offset 0) (= ~ldvarg2~0.base 0) (= |tgt_ring_init_get_zeroed_page_#in~arg0#1| 208) (<= 0 |#StackHeapBarrier|) (= |tgt_ring_init_get_zeroed_page_#in~arg0#1| |tgt_ring_init_get_zeroed_page_~arg0#1|) (= ~ldvarg3~0.offset 0) (= |tgt_ring_init_get_zeroed_page_#res#1| (select (select |#memory_int| |tgt_ring_init_~ring#1.base|) (+ (* 8 |tgt_ring_init_~i~4#1|) |tgt_ring_init_~ring#1.offset| 4))) (<= 0 |tgt_ring_init_~#__key~3#1.base|) (= ~ldvarg7~0.base 0) (= |#NULL.base| 0) (= |~#tx_ring~0.base| 47))' at error location [2022-11-22 02:03:21,121 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:03:21,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:03:21,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-22 02:03:21,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747968575] [2022-11-22 02:03:21,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:03:21,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:03:21,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:21,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:03:21,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=950, Unknown=0, NotChecked=0, Total=1056 [2022-11-22 02:03:21,124 INFO L87 Difference]: Start difference. First operand 356 states and 471 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 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) [2022-11-22 02:03:21,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:21,408 INFO L93 Difference]: Finished difference Result 382 states and 515 transitions. [2022-11-22 02:03:21,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:03:21,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 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 31 [2022-11-22 02:03:21,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:21,414 INFO L225 Difference]: With dead ends: 382 [2022-11-22 02:03:21,415 INFO L226 Difference]: Without dead ends: 381 [2022-11-22 02:03:21,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 156.4s TimeCoverageRelationStatistics Valid=106, Invalid=950, Unknown=0, NotChecked=0, Total=1056 [2022-11-22 02:03:21,416 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 26 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:21,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 906 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:03:21,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-11-22 02:03:21,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 355. [2022-11-22 02:03:21,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 234 states have (on average 1.393162393162393) internal successors, (326), 248 states have internal predecessors, (326), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-22 02:03:21,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 469 transitions. [2022-11-22 02:03:21,436 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 469 transitions. Word has length 31 [2022-11-22 02:03:21,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:21,437 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 469 transitions. [2022-11-22 02:03:21,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 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) [2022-11-22 02:03:21,437 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 469 transitions. [2022-11-22 02:03:21,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 02:03:21,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:21,438 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 02:03:21,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 02:03:21,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:21,647 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)] === [2022-11-22 02:03:21,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:21,647 INFO L85 PathProgramCache]: Analyzing trace with hash -723435857, now seen corresponding path program 1 times [2022-11-22 02:03:21,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:21,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111218698] [2022-11-22 02:03:21,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:21,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:21,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:21,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111218698] [2022-11-22 02:03:21,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111218698] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:03:21,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688930425] [2022-11-22 02:03:21,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:21,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:21,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:21,849 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:21,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:03:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:22,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:03:22,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:22,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:22,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:03:22,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688930425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:22,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:03:22,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-22 02:03:22,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133102151] [2022-11-22 02:03:22,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:22,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:03:22,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:22,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:03:22,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:03:22,274 INFO L87 Difference]: Start difference. First operand 355 states and 469 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-11-22 02:03:22,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:22,463 INFO L93 Difference]: Finished difference Result 359 states and 475 transitions. [2022-11-22 02:03:22,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:03:22,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 32 [2022-11-22 02:03:22,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:22,466 INFO L225 Difference]: With dead ends: 359 [2022-11-22 02:03:22,466 INFO L226 Difference]: Without dead ends: 358 [2022-11-22 02:03:22,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:03:22,467 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 6 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:22,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 609 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:03:22,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-11-22 02:03:22,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 348. [2022-11-22 02:03:22,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 228 states have (on average 1.3859649122807018) internal successors, (316), 241 states have internal predecessors, (316), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-22 02:03:22,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 459 transitions. [2022-11-22 02:03:22,493 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 459 transitions. Word has length 32 [2022-11-22 02:03:22,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:22,495 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 459 transitions. [2022-11-22 02:03:22,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-11-22 02:03:22,496 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 459 transitions. [2022-11-22 02:03:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-22 02:03:22,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:22,500 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] [2022-11-22 02:03:22,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:22,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-22 02:03:22,708 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)] === [2022-11-22 02:03:22,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:22,709 INFO L85 PathProgramCache]: Analyzing trace with hash -306400277, now seen corresponding path program 1 times [2022-11-22 02:03:22,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:22,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696231051] [2022-11-22 02:03:22,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:22,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:22,838 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 02:03:22,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:22,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696231051] [2022-11-22 02:03:22,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696231051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:22,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:22,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:03:22,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616844848] [2022-11-22 02:03:22,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:22,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:03:22,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:22,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:03:22,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:22,841 INFO L87 Difference]: Start difference. First operand 348 states and 459 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-22 02:03:23,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:23,029 INFO L93 Difference]: Finished difference Result 695 states and 926 transitions. [2022-11-22 02:03:23,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:03:23,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 34 [2022-11-22 02:03:23,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:23,032 INFO L225 Difference]: With dead ends: 695 [2022-11-22 02:03:23,032 INFO L226 Difference]: Without dead ends: 357 [2022-11-22 02:03:23,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:23,034 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 1 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:23,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 601 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:03:23,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-11-22 02:03:23,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2022-11-22 02:03:23,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 237 states have (on average 1.371308016877637) internal successors, (325), 250 states have internal predecessors, (325), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-22 02:03:23,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 468 transitions. [2022-11-22 02:03:23,051 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 468 transitions. Word has length 34 [2022-11-22 02:03:23,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:23,051 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 468 transitions. [2022-11-22 02:03:23,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-22 02:03:23,052 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 468 transitions. [2022-11-22 02:03:23,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-22 02:03:23,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:23,053 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] [2022-11-22 02:03:23,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:03:23,053 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)] === [2022-11-22 02:03:23,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:23,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1165071491, now seen corresponding path program 1 times [2022-11-22 02:03:23,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:23,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181881440] [2022-11-22 02:03:23,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:23,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 02:03:23,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:23,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181881440] [2022-11-22 02:03:23,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181881440] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:03:23,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569184713] [2022-11-22 02:03:23,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:23,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:23,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:23,184 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:23,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:03:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:23,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:03:23,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:23,534 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:03:23,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:03:23,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569184713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:23,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:03:23,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2022-11-22 02:03:23,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316469010] [2022-11-22 02:03:23,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:23,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:03:23,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:23,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:03:23,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:03:23,537 INFO L87 Difference]: Start difference. First operand 357 states and 468 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-11-22 02:03:23,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:23,812 INFO L93 Difference]: Finished difference Result 712 states and 932 transitions. [2022-11-22 02:03:23,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:03:23,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 37 [2022-11-22 02:03:23,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:23,815 INFO L225 Difference]: With dead ends: 712 [2022-11-22 02:03:23,815 INFO L226 Difference]: Without dead ends: 357 [2022-11-22 02:03:23,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:03:23,818 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 3 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:23,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1207 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:03:23,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-11-22 02:03:23,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2022-11-22 02:03:23,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 237 states have (on average 1.3628691983122363) internal successors, (323), 248 states have internal predecessors, (323), 72 states have call successors, (72), 40 states have call predecessors, (72), 40 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-22 02:03:23,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 466 transitions. [2022-11-22 02:03:23,836 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 466 transitions. Word has length 37 [2022-11-22 02:03:23,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:23,837 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 466 transitions. [2022-11-22 02:03:23,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-11-22 02:03:23,837 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 466 transitions. [2022-11-22 02:03:23,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-22 02:03:23,840 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:23,841 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 02:03:23,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:24,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:24,048 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)] === [2022-11-22 02:03:24,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:24,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1588332362, now seen corresponding path program 1 times [2022-11-22 02:03:24,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:24,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004220507] [2022-11-22 02:03:24,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:24,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:24,257 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 02:03:24,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:24,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004220507] [2022-11-22 02:03:24,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004220507] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:03:24,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217526702] [2022-11-22 02:03:24,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:24,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:24,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:24,260 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:24,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:03:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:24,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:03:24,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:24,664 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:03:24,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:03:24,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217526702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:24,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:03:24,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2022-11-22 02:03:24,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605018420] [2022-11-22 02:03:24,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:24,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:03:24,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:24,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:03:24,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:03:24,667 INFO L87 Difference]: Start difference. First operand 357 states and 466 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-11-22 02:03:24,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:24,961 INFO L93 Difference]: Finished difference Result 794 states and 1059 transitions. [2022-11-22 02:03:24,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:03:24,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 53 [2022-11-22 02:03:24,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:24,964 INFO L225 Difference]: With dead ends: 794 [2022-11-22 02:03:24,964 INFO L226 Difference]: Without dead ends: 447 [2022-11-22 02:03:24,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:03:24,965 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 73 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:24,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1425 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:03:24,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-11-22 02:03:24,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 365. [2022-11-22 02:03:24,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 243 states have (on average 1.353909465020576) internal successors, (329), 254 states have internal predecessors, (329), 72 states have call successors, (72), 40 states have call predecessors, (72), 42 states have return successors, (75), 73 states have call predecessors, (75), 71 states have call successors, (75) [2022-11-22 02:03:24,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 476 transitions. [2022-11-22 02:03:24,984 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 476 transitions. Word has length 53 [2022-11-22 02:03:24,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:24,984 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 476 transitions. [2022-11-22 02:03:24,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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) [2022-11-22 02:03:24,985 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 476 transitions. [2022-11-22 02:03:24,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-22 02:03:24,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:24,986 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:24,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:25,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:25,194 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)] === [2022-11-22 02:03:25,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:25,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1656675213, now seen corresponding path program 1 times [2022-11-22 02:03:25,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:25,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837339201] [2022-11-22 02:03:25,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:25,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:25,415 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 02:03:25,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:25,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837339201] [2022-11-22 02:03:25,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837339201] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:03:25,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143197495] [2022-11-22 02:03:25,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:25,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:25,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:25,418 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:25,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 02:03:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:25,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 02:03:25,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:25,810 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:03:25,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:03:25,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143197495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:25,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:03:25,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3] total 9 [2022-11-22 02:03:25,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744583376] [2022-11-22 02:03:25,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:25,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:03:25,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:25,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:03:25,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:03:25,812 INFO L87 Difference]: Start difference. First operand 365 states and 476 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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) [2022-11-22 02:03:26,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:26,245 INFO L93 Difference]: Finished difference Result 802 states and 1067 transitions. [2022-11-22 02:03:26,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:03:26,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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 51 [2022-11-22 02:03:26,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:26,249 INFO L225 Difference]: With dead ends: 802 [2022-11-22 02:03:26,249 INFO L226 Difference]: Without dead ends: 447 [2022-11-22 02:03:26,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:03:26,251 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 210 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:26,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 2067 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:03:26,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-11-22 02:03:26,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 369. [2022-11-22 02:03:26,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 247 states have (on average 1.3481781376518218) internal successors, (333), 258 states have internal predecessors, (333), 72 states have call successors, (72), 40 states have call predecessors, (72), 42 states have return successors, (75), 73 states have call predecessors, (75), 71 states have call successors, (75) [2022-11-22 02:03:26,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 480 transitions. [2022-11-22 02:03:26,271 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 480 transitions. Word has length 51 [2022-11-22 02:03:26,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:26,271 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 480 transitions. [2022-11-22 02:03:26,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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) [2022-11-22 02:03:26,272 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 480 transitions. [2022-11-22 02:03:26,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-22 02:03:26,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:26,273 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 02:03:26,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:26,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 02:03:26,481 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)] === [2022-11-22 02:03:26,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:26,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1017041864, now seen corresponding path program 1 times [2022-11-22 02:03:26,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:26,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186035799] [2022-11-22 02:03:26,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:26,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:26,656 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 02:03:26,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:26,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186035799] [2022-11-22 02:03:26,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186035799] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:03:26,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227597175] [2022-11-22 02:03:26,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:26,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:26,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:26,658 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:26,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 02:03:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:27,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:03:27,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:27,047 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 02:03:27,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:27,109 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 02:03:27,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227597175] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:27,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2052537408] [2022-11-22 02:03:27,113 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-22 02:03:27,114 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:03:27,114 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:03:27,115 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:03:27,115 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:03:27,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 13 [2022-11-22 02:03:27,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2022-11-22 02:03:27,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 13 [2022-11-22 02:03:29,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:31,002 INFO L321 Elim1Store]: treesize reduction 500, result has 47.4 percent of original size [2022-11-22 02:03:31,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 51 select indices, 51 select index equivalence classes, 1277 disjoint index pairs (out of 1275 index pairs), introduced 51 new quantified variables, introduced 50 case distinctions, treesize of input 262 treesize of output 614 [2022-11-22 02:03:31,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,776 INFO L321 Elim1Store]: treesize reduction 900, result has 33.4 percent of original size [2022-11-22 02:03:33,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 53 select indices, 53 select index equivalence classes, 1328 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 100 case distinctions, treesize of input 272 treesize of output 625 [2022-11-22 02:03:34,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:03:34,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:03:35,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:35,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-22 02:03:35,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:35,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-22 02:03:37,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:37,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-22 02:03:37,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:37,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-22 02:03:58,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:03:58,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:03:58,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:03:58,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:03:58,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:03:58,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:03:58,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 108 [2022-11-22 02:03:58,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:03:58,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:03:58,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:03:58,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:03:58,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:03:58,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:03:58,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:03:58,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:03:58,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:03:59,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:03:59,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-22 02:03:59,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-22 02:03:59,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 02:03:59,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-22 02:03:59,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:03:59,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:03:59,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:59,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:04:00,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-22 02:04:00,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:00,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:04:00,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-22 02:04:00,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:04:00,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:04:00,381 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:04:16,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-22 02:04:16,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:04:16,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:04:16,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-22 02:04:16,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-22 02:04:16,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 02:04:16,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-22 02:04:16,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-22 02:04:16,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:04:16,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:04:16,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:04:16,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:04:16,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:04:17,094 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:04:34,375 INFO L197 IcfgInterpreter]: Interpreting procedure tgt_ring_init with input of size 187 for LOIs [2022-11-22 02:04:34,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:04:34,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:04:36,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:04:36,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:04:36,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:04:36,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:04:36,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:04:36,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:04:37,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:04:37,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:04:37,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:04:37,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:04:37,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:04:38,380 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 201 for LOIs [2022-11-22 02:04:38,528 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 209 for LOIs [2022-11-22 02:04:38,585 INFO L197 IcfgInterpreter]: Interpreting procedure tgt_ring_exit with input of size 99 for LOIs [2022-11-22 02:04:39,358 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 778 for LOIs [2022-11-22 02:04:40,014 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:05:13,826 WARN L233 SmtUtils]: Spent 8.66s on a formula simplification. DAG size of input: 805 DAG size of output: 703 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:05:25,825 WARN L233 SmtUtils]: Spent 7.79s on a formula simplification. DAG size of input: 831 DAG size of output: 826 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:05:45,263 WARN L233 SmtUtils]: Spent 19.17s on a formula simplification. DAG size of input: 747 DAG size of output: 672 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:06:03,497 WARN L233 SmtUtils]: Spent 17.94s on a formula simplification. DAG size of input: 743 DAG size of output: 624 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:06:14,540 WARN L233 SmtUtils]: Spent 10.73s on a formula simplification. DAG size of input: 753 DAG size of output: 649 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:06:25,838 WARN L233 SmtUtils]: Spent 10.97s on a formula simplification. DAG size of input: 757 DAG size of output: 653 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:06:56,119 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15783#(and (= 51 |~#tgt_miscdev~0.base|) (= ~ldvarg9~0.offset 0) (= ~ldvarg5~0.base 0) (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldvarg8~0.offset 0) (= ~tgt_fops_group2~0.base 0) (= ~ldvarg9~0.base 0) (= ~ldvarg7~0.offset 0) (<= |tgt_ring_exit_free_pages_~arg1#1| 0) (<= (mod |tgt_ring_exit_~i~3#1| 4294967296) 15) (= |tgt_ring_exit_free_pages_#in~arg0#1| |tgt_ring_exit_free_pages_~arg0#1|) (= ~ldv_retval_1~0 0) (<= |tgt_ring_exit_~ring#1.base| 47) (= ~ldvarg3~0.base 0) (<= 0 |tgt_ring_exit_free_pages_~arg1#1|) (<= 0 |tgt_ring_exit_#in~ring#1.offset|) (= ~ldv_mutex_lock~0 1) (= |~#rx_ring~0.base| 48) (= |tgt_ring_exit_free_pages_#in~arg0#1| (select (select |#memory_int| |tgt_ring_exit_~ring#1.base|) (+ |tgt_ring_exit_~ring#1.offset| 4 (* |tgt_ring_exit_~i~3#1| 8)))) (= ~ldvarg1~0 0) (<= |tgt_ring_exit_#in~ring#1.base| 47) (= ~ldvarg5~0.offset 0) (= ~tgt_fops_group1~0.offset 0) (not (<= |tgt_ring_exit_~i~3#1| 2147483646)) (= ~ldvarg2~0.offset 0) (= |tgt_ring_exit_free_pages_#in~arg1#1| 0) (<= |tgt_ring_exit_~ring#1.offset| 0) (= ~ldv_state_variable_1~0 0) (= 49 |~#tgt_poll_wait~0.base|) (= |~#tgt_miscdev~0.offset| 0) (<= ~scsi_tgt_cmd_cache~0.offset 0) (= |~#tx_ring~0.offset| 0) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |~#rx_ring~0.offset| 0) (= ~ldvarg8~0.base 0) (<= 0 ~scsi_tgt_cmd_cache~0.offset) (= ~tgt_fops_group1~0.base 0) (= ~ref_cnt~0 0) (= ~ldvarg4~0.offset 0) (= |~#tgt_poll_wait~0.offset| 0) (= |~#tgt_fops~0.offset| 0) (= ~ldvarg0~0 0) (= |#NULL.offset| 0) (= ~ldvarg4~0.base 0) (= ~ldv_retval_0~0 0) (<= |tgt_ring_exit_#in~ring#1.offset| 0) (<= 0 |tgt_ring_exit_~ring#1.offset|) (= |~#tgt_fops~0.base| 50) (= ~ldvarg6~0 0) (<= 47 |tgt_ring_exit_#in~ring#1.base|) (= ~tgt_fops_group2~0.offset 0) (= ~ldvarg2~0.base 0) (<= 0 |#StackHeapBarrier|) (= ~ldvarg3~0.offset 0) (<= 47 |tgt_ring_exit_~ring#1.base|) (= ~ldvarg7~0.base 0) (= |#NULL.base| 0) (= |~#tx_ring~0.base| 47))' at error location [2022-11-22 02:06:56,119 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:06:56,119 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:06:56,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-22 02:06:56,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994075032] [2022-11-22 02:06:56,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:06:56,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:06:56,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:56,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:06:56,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1663, Unknown=0, NotChecked=0, Total=1806 [2022-11-22 02:06:56,122 INFO L87 Difference]: Start difference. First operand 369 states and 480 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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) [2022-11-22 02:06:56,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:56,384 INFO L93 Difference]: Finished difference Result 387 states and 512 transitions. [2022-11-22 02:06:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:06:56,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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 56 [2022-11-22 02:06:56,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:56,387 INFO L225 Difference]: With dead ends: 387 [2022-11-22 02:06:56,387 INFO L226 Difference]: Without dead ends: 386 [2022-11-22 02:06:56,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 123 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 136.1s TimeCoverageRelationStatistics Valid=143, Invalid=1663, Unknown=0, NotChecked=0, Total=1806 [2022-11-22 02:06:56,389 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 7 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:56,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1193 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:06:56,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-11-22 02:06:56,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 368. [2022-11-22 02:06:56,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 247 states have (on average 1.3360323886639676) internal successors, (330), 257 states have internal predecessors, (330), 72 states have call successors, (72), 40 states have call predecessors, (72), 42 states have return successors, (75), 73 states have call predecessors, (75), 71 states have call successors, (75) [2022-11-22 02:06:56,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 477 transitions. [2022-11-22 02:06:56,405 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 477 transitions. Word has length 56 [2022-11-22 02:06:56,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:56,406 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 477 transitions. [2022-11-22 02:06:56,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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) [2022-11-22 02:06:56,406 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 477 transitions. [2022-11-22 02:06:56,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-22 02:06:56,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:56,407 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 02:06:56,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 02:06:56,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-22 02:06:56,615 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)] === [2022-11-22 02:06:56,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:56,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1463526664, now seen corresponding path program 1 times [2022-11-22 02:06:56,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:56,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761861756] [2022-11-22 02:06:56,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:56,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:56,756 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 02:06:56,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:56,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761861756] [2022-11-22 02:06:56,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761861756] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:06:56,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614815869] [2022-11-22 02:06:56,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:56,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:06:56,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:06:56,758 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:06:56,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 02:06:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:57,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:06:57,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:57,141 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 02:06:57,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:57,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614815869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:57,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:06:57,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-22 02:06:57,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114018464] [2022-11-22 02:06:57,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:57,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:06:57,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:57,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:06:57,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:06:57,144 INFO L87 Difference]: Start difference. First operand 368 states and 477 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2022-11-22 02:06:57,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:57,298 INFO L93 Difference]: Finished difference Result 368 states and 477 transitions. [2022-11-22 02:06:57,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:06:57,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 57 [2022-11-22 02:06:57,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:57,301 INFO L225 Difference]: With dead ends: 368 [2022-11-22 02:06:57,301 INFO L226 Difference]: Without dead ends: 353 [2022-11-22 02:06:57,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:06:57,302 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 2 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:57,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 597 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:06:57,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-11-22 02:06:57,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 349. [2022-11-22 02:06:57,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 234 states have (on average 1.329059829059829) internal successors, (311), 242 states have internal predecessors, (311), 69 states have call successors, (69), 38 states have call predecessors, (69), 40 states have return successors, (73), 71 states have call predecessors, (73), 69 states have call successors, (73) [2022-11-22 02:06:57,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 453 transitions. [2022-11-22 02:06:57,318 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 453 transitions. Word has length 57 [2022-11-22 02:06:57,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:57,320 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 453 transitions. [2022-11-22 02:06:57,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2022-11-22 02:06:57,321 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 453 transitions. [2022-11-22 02:06:57,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-22 02:06:57,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:57,322 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 02:06:57,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 02:06:57,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:06:57,536 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)] === [2022-11-22 02:06:57,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:57,536 INFO L85 PathProgramCache]: Analyzing trace with hash -405540158, now seen corresponding path program 1 times [2022-11-22 02:06:57,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:57,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180065971] [2022-11-22 02:06:57,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:57,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:57,661 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 02:06:57,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:57,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180065971] [2022-11-22 02:06:57,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180065971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:57,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:57,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:06:57,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216257060] [2022-11-22 02:06:57,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:57,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:06:57,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:57,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:06:57,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:57,664 INFO L87 Difference]: Start difference. First operand 349 states and 453 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-22 02:06:57,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:57,950 INFO L93 Difference]: Finished difference Result 940 states and 1220 transitions. [2022-11-22 02:06:57,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:06:57,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (5), 1 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 65 [2022-11-22 02:06:57,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:57,954 INFO L225 Difference]: With dead ends: 940 [2022-11-22 02:06:57,954 INFO L226 Difference]: Without dead ends: 601 [2022-11-22 02:06:57,955 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 [2022-11-22 02:06:57,956 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 310 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:57,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 636 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:06:57,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-11-22 02:06:57,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 599. [2022-11-22 02:06:57,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 399 states have (on average 1.3082706766917294) internal successors, (522), 409 states have internal predecessors, (522), 122 states have call successors, (122), 69 states have call predecessors, (122), 72 states have return successors, (128), 125 states have call predecessors, (128), 122 states have call successors, (128) [2022-11-22 02:06:57,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 772 transitions. [2022-11-22 02:06:57,982 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 772 transitions. Word has length 65 [2022-11-22 02:06:57,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:57,983 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 772 transitions. [2022-11-22 02:06:57,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-22 02:06:57,983 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 772 transitions. [2022-11-22 02:06:57,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-22 02:06:57,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:57,984 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 02:06:57,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 02:06:57,985 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)] === [2022-11-22 02:06:57,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:57,985 INFO L85 PathProgramCache]: Analyzing trace with hash 85403417, now seen corresponding path program 1 times [2022-11-22 02:06:57,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:57,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128097992] [2022-11-22 02:06:57,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:57,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:58,177 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-22 02:06:58,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:58,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128097992] [2022-11-22 02:06:58,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128097992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:58,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:58,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:06:58,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887324897] [2022-11-22 02:06:58,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:58,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:06:58,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:58,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:06:58,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:58,179 INFO L87 Difference]: Start difference. First operand 599 states and 772 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2022-11-22 02:06:58,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:58,365 INFO L93 Difference]: Finished difference Result 1200 states and 1562 transitions. [2022-11-22 02:06:58,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:06:58,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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 68 [2022-11-22 02:06:58,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:58,369 INFO L225 Difference]: With dead ends: 1200 [2022-11-22 02:06:58,369 INFO L226 Difference]: Without dead ends: 611 [2022-11-22 02:06:58,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:58,372 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 3 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:58,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 581 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:06:58,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-11-22 02:06:58,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 607. [2022-11-22 02:06:58,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 407 states have (on average 1.307125307125307) internal successors, (532), 417 states have internal predecessors, (532), 122 states have call successors, (122), 69 states have call predecessors, (122), 72 states have return successors, (128), 125 states have call predecessors, (128), 122 states have call successors, (128) [2022-11-22 02:06:58,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 782 transitions. [2022-11-22 02:06:58,400 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 782 transitions. Word has length 68 [2022-11-22 02:06:58,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:58,400 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 782 transitions. [2022-11-22 02:06:58,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2022-11-22 02:06:58,401 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 782 transitions. [2022-11-22 02:06:58,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-22 02:06:58,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:58,402 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 02:06:58,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 02:06:58,402 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)] === [2022-11-22 02:06:58,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:58,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1436095175, now seen corresponding path program 1 times [2022-11-22 02:06:58,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:58,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608211874] [2022-11-22 02:06:58,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:58,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:58,544 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-22 02:06:58,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:58,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608211874] [2022-11-22 02:06:58,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608211874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:58,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:06:58,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:06:58,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728157875] [2022-11-22 02:06:58,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:58,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:06:58,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:58,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:06:58,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:58,547 INFO L87 Difference]: Start difference. First operand 607 states and 782 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 02:06:58,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:58,805 INFO L93 Difference]: Finished difference Result 940 states and 1204 transitions. [2022-11-22 02:06:58,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:06:58,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (6), 1 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 69 [2022-11-22 02:06:58,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:58,811 INFO L225 Difference]: With dead ends: 940 [2022-11-22 02:06:58,811 INFO L226 Difference]: Without dead ends: 938 [2022-11-22 02:06:58,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:06:58,814 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 295 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:58,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 636 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:06:58,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-11-22 02:06:58,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 936. [2022-11-22 02:06:58,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 630 states have (on average 1.2952380952380953) internal successors, (816), 643 states have internal predecessors, (816), 188 states have call successors, (188), 107 states have call predecessors, (188), 112 states have return successors, (198), 193 states have call predecessors, (198), 188 states have call successors, (198) [2022-11-22 02:06:58,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1202 transitions. [2022-11-22 02:06:58,857 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1202 transitions. Word has length 69 [2022-11-22 02:06:58,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:58,858 INFO L495 AbstractCegarLoop]: Abstraction has 936 states and 1202 transitions. [2022-11-22 02:06:58,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 02:06:58,858 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1202 transitions. [2022-11-22 02:06:58,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-22 02:06:58,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:58,865 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 02:06:58,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 02:06:58,866 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)] === [2022-11-22 02:06:58,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:06:58,866 INFO L85 PathProgramCache]: Analyzing trace with hash -927245350, now seen corresponding path program 1 times [2022-11-22 02:06:58,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:06:58,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141624208] [2022-11-22 02:06:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:58,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:06:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:59,057 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-22 02:06:59,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:06:59,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141624208] [2022-11-22 02:06:59,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141624208] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:06:59,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288707492] [2022-11-22 02:06:59,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:06:59,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:06:59,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:06:59,060 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:06:59,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 02:06:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:06:59,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:06:59,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:59,493 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 02:06:59,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:06:59,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288707492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:06:59,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:06:59,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2022-11-22 02:06:59,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006981982] [2022-11-22 02:06:59,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:06:59,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:06:59,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:06:59,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:06:59,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:06:59,495 INFO L87 Difference]: Start difference. First operand 936 states and 1202 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-11-22 02:06:59,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:06:59,821 INFO L93 Difference]: Finished difference Result 1999 states and 2613 transitions. [2022-11-22 02:06:59,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:06:59,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 72 [2022-11-22 02:06:59,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:06:59,828 INFO L225 Difference]: With dead ends: 1999 [2022-11-22 02:06:59,828 INFO L226 Difference]: Without dead ends: 1135 [2022-11-22 02:06:59,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:06:59,831 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 72 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:06:59,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1418 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:06:59,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2022-11-22 02:06:59,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 946. [2022-11-22 02:06:59,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 640 states have (on average 1.290625) internal successors, (826), 648 states have internal predecessors, (826), 188 states have call successors, (188), 107 states have call predecessors, (188), 112 states have return successors, (198), 198 states have call predecessors, (198), 188 states have call successors, (198) [2022-11-22 02:06:59,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1212 transitions. [2022-11-22 02:06:59,879 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1212 transitions. Word has length 72 [2022-11-22 02:06:59,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:06:59,880 INFO L495 AbstractCegarLoop]: Abstraction has 946 states and 1212 transitions. [2022-11-22 02:06:59,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-11-22 02:06:59,880 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1212 transitions. [2022-11-22 02:06:59,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-22 02:06:59,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:06:59,881 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, 1] [2022-11-22 02:06:59,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 02:07:00,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-22 02:07:00,090 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)] === [2022-11-22 02:07:00,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:00,090 INFO L85 PathProgramCache]: Analyzing trace with hash -302558920, now seen corresponding path program 1 times [2022-11-22 02:07:00,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:00,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657733843] [2022-11-22 02:07:00,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:00,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:00,253 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 02:07:00,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:00,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657733843] [2022-11-22 02:07:00,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657733843] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:07:00,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120236712] [2022-11-22 02:07:00,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:00,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:07:00,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:07:00,256 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:07:00,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 02:07:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:00,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:07:00,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:07:00,697 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 02:07:00,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:07:00,757 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 02:07:00,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120236712] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:07:00,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1032627474] [2022-11-22 02:07:00,760 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2022-11-22 02:07:00,761 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:07:00,761 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:07:00,761 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:07:00,762 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:07:01,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 13 [2022-11-22 02:07:01,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 13 [2022-11-22 02:07:01,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2022-11-22 02:07:03,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:05,472 INFO L321 Elim1Store]: treesize reduction 900, result has 33.4 percent of original size [2022-11-22 02:07:05,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 53 select indices, 53 select index equivalence classes, 1328 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 100 case distinctions, treesize of input 272 treesize of output 625 [2022-11-22 02:07:05,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:05,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 51 select indices, 51 select index equivalence classes, 1327 disjoint index pairs (out of 1275 index pairs), introduced 51 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 414 [2022-11-22 02:07:07,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:07:07,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:07:07,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:07,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-22 02:07:07,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:07,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-22 02:07:09,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:09,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-22 02:07:09,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:09,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-22 02:07:33,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:07:33,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:07:33,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:07:33,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:07:33,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:07:34,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:07:34,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 108 [2022-11-22 02:07:34,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:07:34,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:07:34,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:07:34,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:07:34,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:07:35,437 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:07:35,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-22 02:07:35,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-22 02:07:35,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 02:07:35,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:07:35,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-22 02:07:35,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:07:35,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:07:35,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:35,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:07:36,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-22 02:07:36,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-22 02:07:36,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:36,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:07:36,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:07:36,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:07:53,867 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:07:53,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-22 02:07:54,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 02:07:54,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-22 02:07:54,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:07:54,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-22 02:07:54,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:07:54,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:07:54,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:07:54,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-22 02:07:54,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:54,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:07:54,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:07:54,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-22 02:07:54,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:07:59,757 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-11-22 02:07:59,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 974 treesize of output 995 [2022-11-22 02:08:26,515 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:08:26,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:08:26,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:08:26,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-22 02:08:26,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:08:26,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-22 02:08:26,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:08:26,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-22 02:08:26,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:26,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:08:27,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:08:27,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:08:27,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-22 02:08:27,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-22 02:08:27,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:27,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 02:08:43,598 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:08:43,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-22 02:08:43,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:08:43,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:08:43,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:43,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:08:43,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:08:43,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-22 02:08:44,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:08:44,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-22 02:08:44,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:08:44,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-22 02:08:44,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 02:08:44,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:08:44,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-22 02:08:44,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:08:49,752 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-11-22 02:08:49,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 974 treesize of output 995 [2022-11-22 02:08:56,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:08:56,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:08:56,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:08:56,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:08:57,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:08:57,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:09:12,382 INFO L197 IcfgInterpreter]: Interpreting procedure tgt_ring_init with input of size 100 for LOIs [2022-11-22 02:09:12,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:09:12,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:09:12,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:09:12,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:09:12,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:09:12,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:09:12,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:09:13,014 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-22 02:09:13,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 357 treesize of output 356 [2022-11-22 02:09:13,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:09:13,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:09:14,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:09:14,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:09:14,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:09:14,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:09:14,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:09:14,568 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 114 for LOIs [2022-11-22 02:09:14,596 INFO L197 IcfgInterpreter]: Interpreting procedure tgt_mmap with input of size 105 for LOIs [2022-11-22 02:09:14,644 INFO L197 IcfgInterpreter]: Interpreting procedure uspace_ring_map with input of size 125 for LOIs [2022-11-22 02:09:17,136 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 120 for LOIs [2022-11-22 02:09:17,152 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 116 for LOIs [2022-11-22 02:09:17,246 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:09:33,814 WARN L233 SmtUtils]: Spent 10.91s on a formula simplification. DAG size of input: 757 DAG size of output: 653 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:09:50,027 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 471 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:10:18,795 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '30551#(and (= 51 |~#tgt_miscdev~0.base|) (= ~ldvarg9~0.offset 0) (<= ~ldv_state_variable_0~0 3) (= ~ldvarg5~0.base 0) (= |uspace_ring_map_~err~18#1| 0) (<= 0 (+ |uspace_ring_map_vm_insert_page_#res#1| 2147483648)) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldvarg8~0.offset 0) (<= 0 |uspace_ring_map_~vma#1.base|) (<= 1 ~ldv_state_variable_0~0) (= ~tgt_fops_group2~0.base 0) (= ~ldvarg9~0.base 0) (= ~ldvarg7~0.offset 0) (<= 0 |uspace_ring_map_vm_insert_page_~arg0#1.base|) (<= |uspace_ring_map_vm_insert_page_~arg0#1.offset| 0) (<= 0 |uspace_ring_map_~ring#1.offset|) (<= 0 |uspace_ring_map_#in~ring#1.offset|) (= ~ldv_retval_1~0 0) (<= 47 |uspace_ring_map_~ring#1.base|) (= ~ldvarg3~0.base 0) (<= |uspace_ring_map_#in~vma#1.offset| 0) (<= |uspace_ring_map_vm_insert_page_#in~arg0#1.base| 0) (<= 0 |uspace_ring_map_vm_insert_page_#in~arg0#1.base|) (<= |uspace_ring_map_#in~vma#1.base| 0) (= ~ldv_mutex_lock~0 1) (= |~#rx_ring~0.base| 48) (<= |uspace_ring_map_vm_insert_page_#in~arg2#1.base| 0) (= ~ldvarg1~0 0) (= ~ldvarg5~0.offset 0) (<= |uspace_ring_map_~vma#1.base| 0) (= ~tgt_fops_group1~0.offset 0) (= ~ldvarg2~0.offset 0) (= 49 |~#tgt_poll_wait~0.base|) (= |~#tgt_miscdev~0.offset| 0) (<= ~scsi_tgt_cmd_cache~0.offset 0) (= |~#tx_ring~0.offset| 0) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= |~#rx_ring~0.offset| 0) (= ~ldvarg8~0.base 0) (<= |uspace_ring_map_#in~ring#1.offset| 0) (<= 47 |uspace_ring_map_#in~ring#1.base|) (= ~ldv_state_variable_1~0 1) (<= 0 ~scsi_tgt_cmd_cache~0.offset) (= ~tgt_fops_group1~0.base 0) (= ~ref_cnt~0 0) (<= |uspace_ring_map_~ring#1.base| 47) (= ~ldvarg4~0.offset 0) (= |~#tgt_poll_wait~0.offset| 0) (<= |uspace_ring_map_#in~ring#1.base| 47) (<= |uspace_ring_map_vm_insert_page_#res#1| 2147483647) (< 2147483646 |uspace_ring_map_~i~2#1|) (= |~#tgt_fops~0.offset| 0) (= ~ldvarg0~0 0) (= |#NULL.offset| 0) (<= 0 |uspace_ring_map_vm_insert_page_~arg0#1.offset|) (= ~ldvarg4~0.base 0) (= ~ldv_retval_0~0 0) (<= 0 |uspace_ring_map_vm_insert_page_~arg2#1.base|) (= |uspace_ring_map_~page~0#1.base| 0) (<= 0 |uspace_ring_map_#in~vma#1.base|) (= |~#tgt_fops~0.base| 50) (<= 0 |uspace_ring_map_~vma#1.offset|) (= ~ldvarg6~0 0) (= ~tgt_fops_group2~0.offset 0) (<= |uspace_ring_map_~ring#1.offset| 0) (= ~ldvarg2~0.base 0) (<= |uspace_ring_map_vm_insert_page_~arg2#1.base| 0) (<= |uspace_ring_map_vm_insert_page_~arg0#1.base| 0) (<= 0 |#StackHeapBarrier|) (= ~ldvarg3~0.offset 0) (<= |uspace_ring_map_~vma#1.offset| 0) (<= 0 |uspace_ring_map_vm_insert_page_#in~arg0#1.offset|) (<= |uspace_ring_map_vm_insert_page_#in~arg0#1.offset| 0) (= ~ldvarg7~0.base 0) (= |#NULL.base| 0) (= |~#tx_ring~0.base| 47) (<= 0 |uspace_ring_map_vm_insert_page_#in~arg2#1.base|) (<= 0 |uspace_ring_map_#in~vma#1.offset|))' at error location [2022-11-22 02:10:18,795 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:10:18,795 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:10:18,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-22 02:10:18,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146418013] [2022-11-22 02:10:18,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:10:18,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:10:18,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:10:18,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:10:18,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=2499, Unknown=0, NotChecked=0, Total=2756 [2022-11-22 02:10:18,798 INFO L87 Difference]: Start difference. First operand 946 states and 1212 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 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) [2022-11-22 02:10:19,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:10:19,078 INFO L93 Difference]: Finished difference Result 985 states and 1278 transitions. [2022-11-22 02:10:19,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:10:19,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 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 75 [2022-11-22 02:10:19,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:10:19,083 INFO L225 Difference]: With dead ends: 985 [2022-11-22 02:10:19,084 INFO L226 Difference]: Without dead ends: 984 [2022-11-22 02:10:19,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 168 SyntacticMatches, 7 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1066 ImplicationChecksByTransitivity, 61.5s TimeCoverageRelationStatistics Valid=257, Invalid=2499, Unknown=0, NotChecked=0, Total=2756 [2022-11-22 02:10:19,086 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 20 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:10:19,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1158 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:10:19,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-11-22 02:10:19,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 945. [2022-11-22 02:10:19,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 640 states have (on average 1.2859375) internal successors, (823), 647 states have internal predecessors, (823), 188 states have call successors, (188), 107 states have call predecessors, (188), 112 states have return successors, (198), 198 states have call predecessors, (198), 188 states have call successors, (198) [2022-11-22 02:10:19,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1209 transitions. [2022-11-22 02:10:19,130 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1209 transitions. Word has length 75 [2022-11-22 02:10:19,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:10:19,130 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1209 transitions. [2022-11-22 02:10:19,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 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) [2022-11-22 02:10:19,131 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1209 transitions. [2022-11-22 02:10:19,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 02:10:19,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:10:19,132 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, 1] [2022-11-22 02:10:19,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-22 02:10:19,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-22 02:10:19,340 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)] === [2022-11-22 02:10:19,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:10:19,341 INFO L85 PathProgramCache]: Analyzing trace with hash -789391857, now seen corresponding path program 1 times [2022-11-22 02:10:19,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:10:19,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315805300] [2022-11-22 02:10:19,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:10:19,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:10:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:10:19,499 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 02:10:19,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:10:19,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315805300] [2022-11-22 02:10:19,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315805300] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:10:19,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626503629] [2022-11-22 02:10:19,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:10:19,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:10:19,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:10:19,501 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:10:19,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 02:10:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:10:19,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:10:19,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:10:19,937 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 02:10:19,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:10:19,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626503629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:10:19,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:10:19,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-22 02:10:19,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730688702] [2022-11-22 02:10:19,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:10:19,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:10:19,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:10:19,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:10:19,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:10:19,940 INFO L87 Difference]: Start difference. First operand 945 states and 1209 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-11-22 02:10:20,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:10:20,133 INFO L93 Difference]: Finished difference Result 951 states and 1218 transitions. [2022-11-22 02:10:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:10:20,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 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 76 [2022-11-22 02:10:20,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:10:20,137 INFO L225 Difference]: With dead ends: 951 [2022-11-22 02:10:20,138 INFO L226 Difference]: Without dead ends: 950 [2022-11-22 02:10:20,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:10:20,139 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 6 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:10:20,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 586 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:10:20,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-11-22 02:10:20,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 935. [2022-11-22 02:10:20,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 631 states have (on average 1.2805071315372425) internal successors, (808), 637 states have internal predecessors, (808), 188 states have call successors, (188), 107 states have call predecessors, (188), 112 states have return successors, (198), 198 states have call predecessors, (198), 188 states have call successors, (198) [2022-11-22 02:10:20,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1194 transitions. [2022-11-22 02:10:20,184 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1194 transitions. Word has length 76 [2022-11-22 02:10:20,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:10:20,184 INFO L495 AbstractCegarLoop]: Abstraction has 935 states and 1194 transitions. [2022-11-22 02:10:20,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-11-22 02:10:20,185 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1194 transitions. [2022-11-22 02:10:20,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-22 02:10:20,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:10:20,186 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:10:20,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 02:10:20,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-22 02:10:20,395 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)] === [2022-11-22 02:10:20,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:10:20,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1322028909, now seen corresponding path program 1 times [2022-11-22 02:10:20,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:10:20,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621917540] [2022-11-22 02:10:20,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:10:20,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:10:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:10:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 02:10:20,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:10:20,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621917540] [2022-11-22 02:10:20,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621917540] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:10:20,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101722118] [2022-11-22 02:10:20,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:10:20,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:10:20,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:10:20,557 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:10:20,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11db9fa1-89e8-4d18-91cb-46b93c5402db/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 02:10:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:10:20,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:10:20,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:10:21,084 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 02:10:21,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:10:21,196 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 02:10:21,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101722118] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:10:21,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [598903644] [2022-11-22 02:10:21,199 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-11-22 02:10:21,199 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:10:21,200 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:10:21,200 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:10:21,200 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:10:21,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 13 [2022-11-22 02:10:21,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 13 [2022-11-22 02:10:21,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2022-11-22 02:10:23,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:24,745 INFO L321 Elim1Store]: treesize reduction 500, result has 47.4 percent of original size [2022-11-22 02:10:24,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 51 select indices, 51 select index equivalence classes, 1277 disjoint index pairs (out of 1275 index pairs), introduced 51 new quantified variables, introduced 50 case distinctions, treesize of input 262 treesize of output 614 [2022-11-22 02:10:25,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:27,254 INFO L321 Elim1Store]: treesize reduction 900, result has 33.4 percent of original size [2022-11-22 02:10:27,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 53 select indices, 53 select index equivalence classes, 1328 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 100 case distinctions, treesize of input 272 treesize of output 625 [2022-11-22 02:10:28,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:10:28,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:10:28,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:28,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-22 02:10:29,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:29,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-22 02:10:30,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:30,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1327 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 157 [2022-11-22 02:10:30,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:30,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 53 select indices, 53 select index equivalence classes, 1378 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 160 [2022-11-22 02:10:53,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:10:53,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:10:53,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:10:53,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:10:53,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:10:53,902 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-22 02:10:53,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 104 [2022-11-22 02:10:53,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:10:53,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:10:53,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:10:53,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-22 02:10:53,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 02:10:54,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:10:55,134 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:10:55,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-22 02:10:55,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-22 02:10:55,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 02:10:55,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:10:55,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-22 02:10:55,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:10:55,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:10:55,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:10:55,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:10:55,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-22 02:10:55,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:10:55,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:10:55,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:10:55,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-22 02:11:13,426 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:11:13,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:11:13,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:11:13,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-22 02:11:13,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-22 02:11:13,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:11:13,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:11:13,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-22 02:11:13,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 02:11:13,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:13,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-22 02:11:13,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-22 02:11:14,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:11:14,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:11:14,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:11:14,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:11:19,317 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-11-22 02:11:19,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 962 treesize of output 983 [2022-11-22 02:11:53,142 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-11-22 02:11:53,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 15 [2022-11-22 02:11:53,163 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-11-22 02:11:53,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 15 [2022-11-22 02:11:53,176 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 02:11:53,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 15 [2022-11-22 02:12:32,706 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:12:32,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-22 02:12:32,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:32,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:12:32,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:12:32,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:12:33,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-22 02:12:33,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:12:33,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-22 02:12:33,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:12:33,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:12:33,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:12:33,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-22 02:12:33,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-22 02:12:33,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:33,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 02:12:48,154 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:12:48,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 300 [2022-11-22 02:12:48,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-22 02:12:48,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:12:48,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:12:48,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2022-11-22 02:12:48,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 02:12:48,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2022-11-22 02:12:48,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 294 [2022-11-22 02:12:48,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:48,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 82 [2022-11-22 02:12:48,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:12:48,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:12:48,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:12:48,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:12:53,929 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-11-22 02:12:53,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 962 treesize of output 983 [2022-11-22 02:13:25,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:13:25,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:13:25,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:13:25,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:13:25,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 02:13:25,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3