./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/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_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1ef83f89a2480bb974b27f067785c3859d21a1e764735321272ad8be1e6dccbd --- 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 01:07:48,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:07:48,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:07:48,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:07:48,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:07:48,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:07:48,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:07:48,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:07:48,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:07:48,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:07:48,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:07:48,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:07:48,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:07:48,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:07:48,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:07:48,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:07:48,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:07:48,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:07:48,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:07:48,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:07:48,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:07:48,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:07:48,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:07:48,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:07:48,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:07:48,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:07:48,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:07:48,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:07:48,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:07:48,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:07:48,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:07:48,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:07:48,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:07:48,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:07:48,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:07:48,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:07:48,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:07:48,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:07:48,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:07:48,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:07:48,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:07:48,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:07:48,870 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:07:48,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:07:48,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:07:48,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:07:48,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:07:48,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:07:48,876 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:07:48,876 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:07:48,876 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:07:48,876 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:07:48,878 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:07:48,878 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:07:48,878 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:07:48,878 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:07:48,878 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:07:48,879 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:07:48,879 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:07:48,879 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:07:48,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:07:48,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:07:48,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:07:48,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:07:48,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:07:48,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:07:48,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:07:48,882 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:07:48,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:07:48,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:07:48,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:07:48,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:07:48,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:07:48,884 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:07:48,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:07:48,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:07:48,884 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:07:48,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:07:48,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:07:48,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:07:48,885 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_3ad3822d-345f-4f8b-9e88-e85991861cf9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef83f89a2480bb974b27f067785c3859d21a1e764735321272ad8be1e6dccbd [2022-11-22 01:07:49,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:07:49,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:07:49,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:07:49,233 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:07:49,234 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:07:49,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-11-22 01:07:52,246 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:07:52,809 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:07:52,809 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-11-22 01:07:52,848 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/data/8fda10f16/fe26ab928ae24479bf2f50bdc094e44f/FLAG5fefe5df6 [2022-11-22 01:07:52,866 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/data/8fda10f16/fe26ab928ae24479bf2f50bdc094e44f [2022-11-22 01:07:52,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:07:52,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:07:52,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:07:52,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:07:52,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:07:52,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:52" (1/1) ... [2022-11-22 01:07:52,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@324ef07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:52, skipping insertion in model container [2022-11-22 01:07:52,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:52" (1/1) ... [2022-11-22 01:07:52,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:07:52,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:07:54,179 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_3ad3822d-345f-4f8b-9e88-e85991861cf9/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2022-11-22 01:07:54,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:07:54,261 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:07:54,578 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_3ad3822d-345f-4f8b-9e88-e85991861cf9/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2022-11-22 01:07:54,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:07:54,650 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:07:54,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54 WrapperNode [2022-11-22 01:07:54,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:07:54,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:07:54,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:07:54,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:07:54,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54" (1/1) ... [2022-11-22 01:07:54,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54" (1/1) ... [2022-11-22 01:07:54,846 INFO L138 Inliner]: procedures = 191, calls = 829, calls flagged for inlining = 88, calls inlined = 74, statements flattened = 2144 [2022-11-22 01:07:54,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:07:54,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:07:54,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:07:54,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:07:54,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54" (1/1) ... [2022-11-22 01:07:54,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54" (1/1) ... [2022-11-22 01:07:54,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54" (1/1) ... [2022-11-22 01:07:54,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54" (1/1) ... [2022-11-22 01:07:54,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54" (1/1) ... [2022-11-22 01:07:54,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54" (1/1) ... [2022-11-22 01:07:55,000 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54" (1/1) ... [2022-11-22 01:07:55,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54" (1/1) ... [2022-11-22 01:07:55,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:07:55,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:07:55,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:07:55,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:07:55,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54" (1/1) ... [2022-11-22 01:07:55,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:07:55,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:07:55,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:07:55,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:07:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:07:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_size [2022-11-22 01:07:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_size [2022-11-22 01:07:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:07:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:07:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:07:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2022-11-22 01:07:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2022-11-22 01:07:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:07:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:07:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-22 01:07:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-22 01:07:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-22 01:07:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-22 01:07:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_done [2022-11-22 01:07:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_done [2022-11-22 01:07:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:07:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:07:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:07:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:07:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:07:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:07:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_flat [2022-11-22 01:07:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_flat [2022-11-22 01:07:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:07:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:07:55,177 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:07:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-22 01:07:55,178 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-22 01:07:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-22 01:07:55,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-22 01:07:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure input_alloc_absinfo [2022-11-22 01:07:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure input_alloc_absinfo [2022-11-22 01:07:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-22 01:07:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-22 01:07:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:07:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:07:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_find [2022-11-22 01:07:55,180 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_find [2022-11-22 01:07:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_uinput_device [2022-11-22 01:07:55,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_uinput_device [2022-11-22 01:07:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:07:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_allocate_device [2022-11-22 01:07:55,181 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_allocate_device [2022-11-22 01:07:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-22 01:07:55,181 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-22 01:07:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:07:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl_handler [2022-11-22 01:07:55,181 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl_handler [2022-11-22 01:07:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:07:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:07:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:07:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_from_user [2022-11-22 01:07:55,183 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_from_user [2022-11-22 01:07:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_destroy_device [2022-11-22 01:07:55,184 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_destroy_device [2022-11-22 01:07:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:07:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2022-11-22 01:07:55,184 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2022-11-22 01:07:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-22 01:07:55,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-22 01:07:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-22 01:07:55,185 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-22 01:07:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-22 01:07:55,185 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-22 01:07:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-11-22 01:07:55,185 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-11-22 01:07:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2022-11-22 01:07:55,186 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2022-11-22 01:07:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:07:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:07:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure is_compat_task [2022-11-22 01:07:55,186 INFO L138 BoogieDeclarations]: Found implementation of procedure is_compat_task [2022-11-22 01:07:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-22 01:07:55,187 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-22 01:07:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-22 01:07:55,188 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-22 01:07:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 01:07:55,189 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 01:07:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:07:55,189 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:07:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-22 01:07:55,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-22 01:07:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:07:55,190 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:07:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:07:55,190 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:07:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:07:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-11-22 01:07:55,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-11-22 01:07:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-22 01:07:55,191 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-22 01:07:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:07:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 01:07:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 01:07:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-22 01:07:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-22 01:07:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:07:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:07:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 01:07:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 01:07:55,728 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:07:55,733 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:08:04,947 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:08:05,373 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:08:05,373 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:08:05,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:05 BoogieIcfgContainer [2022-11-22 01:08:05,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:08:05,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:08:05,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:08:05,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:08:05,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:07:52" (1/3) ... [2022-11-22 01:08:05,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375016d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:05, skipping insertion in model container [2022-11-22 01:08:05,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:54" (2/3) ... [2022-11-22 01:08:05,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375016d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:05, skipping insertion in model container [2022-11-22 01:08:05,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:05" (3/3) ... [2022-11-22 01:08:05,393 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2022-11-22 01:08:05,412 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:08:05,413 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:08:05,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:08:05,506 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;@6b2601de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:08:05,507 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:08:05,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 519 states, 338 states have (on average 1.3905325443786982) internal successors, (470), 350 states have internal predecessors, (470), 137 states have call successors, (137), 42 states have call predecessors, (137), 42 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) [2022-11-22 01:08:05,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:08:05,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:05,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:08:05,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:05,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:05,532 INFO L85 PathProgramCache]: Analyzing trace with hash -284689213, now seen corresponding path program 1 times [2022-11-22 01:08:05,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:05,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685398218] [2022-11-22 01:08:05,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:05,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:05,851 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 01:08:05,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:05,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685398218] [2022-11-22 01:08:05,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685398218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:08:05,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:08:05,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:08:05,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255848573] [2022-11-22 01:08:05,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:08:05,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:08:05,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:08:05,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:08:05,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:08:05,889 INFO L87 Difference]: Start difference. First operand has 519 states, 338 states have (on average 1.3905325443786982) internal successors, (470), 350 states have internal predecessors, (470), 137 states have call successors, (137), 42 states have call predecessors, (137), 42 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 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 01:08:06,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:08:06,357 INFO L93 Difference]: Finished difference Result 1032 states and 1488 transitions. [2022-11-22 01:08:06,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:08:06,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 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 10 [2022-11-22 01:08:06,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:08:06,373 INFO L225 Difference]: With dead ends: 1032 [2022-11-22 01:08:06,373 INFO L226 Difference]: Without dead ends: 515 [2022-11-22 01:08:06,381 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 01:08:06,384 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 731 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:08:06,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 648 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:08:06,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-11-22 01:08:06,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2022-11-22 01:08:06,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 337 states have (on average 1.3827893175074184) internal successors, (466), 346 states have internal predecessors, (466), 136 states have call successors, (136), 42 states have call predecessors, (136), 41 states have return successors, (132), 130 states have call predecessors, (132), 132 states have call successors, (132) [2022-11-22 01:08:06,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 734 transitions. [2022-11-22 01:08:06,473 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 734 transitions. Word has length 10 [2022-11-22 01:08:06,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:08:06,475 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 734 transitions. [2022-11-22 01:08:06,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 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 01:08:06,475 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 734 transitions. [2022-11-22 01:08:06,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:08:06,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:06,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:08:06,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:08:06,477 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:06,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:06,478 INFO L85 PathProgramCache]: Analyzing trace with hash -235746047, now seen corresponding path program 1 times [2022-11-22 01:08:06,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:06,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749998402] [2022-11-22 01:08:06,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:06,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:06,580 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 01:08:06,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:06,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749998402] [2022-11-22 01:08:06,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749998402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:08:06,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:08:06,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:08:06,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439386418] [2022-11-22 01:08:06,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:08:06,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:08:06,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:08:06,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:08:06,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:08:06,584 INFO L87 Difference]: Start difference. First operand 515 states and 734 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 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 01:08:07,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:08:07,034 INFO L93 Difference]: Finished difference Result 517 states and 735 transitions. [2022-11-22 01:08:07,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:08:07,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 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 11 [2022-11-22 01:08:07,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:08:07,040 INFO L225 Difference]: With dead ends: 517 [2022-11-22 01:08:07,040 INFO L226 Difference]: Without dead ends: 514 [2022-11-22 01:08:07,040 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 01:08:07,041 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 726 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:08:07,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 645 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:08:07,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-11-22 01:08:07,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2022-11-22 01:08:07,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 337 states have (on average 1.3798219584569733) internal successors, (465), 345 states have internal predecessors, (465), 135 states have call successors, (135), 42 states have call predecessors, (135), 41 states have return successors, (132), 130 states have call predecessors, (132), 132 states have call successors, (132) [2022-11-22 01:08:07,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 732 transitions. [2022-11-22 01:08:07,101 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 732 transitions. Word has length 11 [2022-11-22 01:08:07,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:08:07,101 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 732 transitions. [2022-11-22 01:08:07,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 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 01:08:07,102 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 732 transitions. [2022-11-22 01:08:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:08:07,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:07,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:08:07,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:08:07,103 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:07,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:07,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1281496966, now seen corresponding path program 1 times [2022-11-22 01:08:07,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:07,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121322540] [2022-11-22 01:08:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:07,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:07,189 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 01:08:07,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:07,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121322540] [2022-11-22 01:08:07,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121322540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:08:07,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:08:07,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:08:07,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418544257] [2022-11-22 01:08:07,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:08:07,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:08:07,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:08:07,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:08:07,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:08:07,192 INFO L87 Difference]: Start difference. First operand 514 states and 732 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 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 01:08:07,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:08:07,857 INFO L93 Difference]: Finished difference Result 655 states and 919 transitions. [2022-11-22 01:08:07,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:08:07,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 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 12 [2022-11-22 01:08:07,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:08:07,864 INFO L225 Difference]: With dead ends: 655 [2022-11-22 01:08:07,865 INFO L226 Difference]: Without dead ends: 645 [2022-11-22 01:08:07,865 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 01:08:07,866 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 229 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:08:07,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1285 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:08:07,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2022-11-22 01:08:07,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 645. [2022-11-22 01:08:07,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 416 states have (on average 1.3557692307692308) internal successors, (564), 427 states have internal predecessors, (564), 169 states have call successors, (169), 61 states have call predecessors, (169), 59 states have return successors, (170), 161 states have call predecessors, (170), 166 states have call successors, (170) [2022-11-22 01:08:07,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 903 transitions. [2022-11-22 01:08:07,955 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 903 transitions. Word has length 12 [2022-11-22 01:08:07,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:08:07,956 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 903 transitions. [2022-11-22 01:08:07,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 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 01:08:07,956 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 903 transitions. [2022-11-22 01:08:07,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-22 01:08:07,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:07,965 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:08:07,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:08:07,966 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:07,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:07,967 INFO L85 PathProgramCache]: Analyzing trace with hash -588509230, now seen corresponding path program 1 times [2022-11-22 01:08:07,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:07,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679337214] [2022-11-22 01:08:07,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:07,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:08,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:08:08,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:08,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679337214] [2022-11-22 01:08:08,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679337214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:08:08,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:08:08,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:08:08,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970099635] [2022-11-22 01:08:08,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:08:08,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:08:08,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:08:08,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:08:08,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:08:08,096 INFO L87 Difference]: Start difference. First operand 645 states and 903 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-22 01:08:08,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:08:08,649 INFO L93 Difference]: Finished difference Result 1339 states and 1892 transitions. [2022-11-22 01:08:08,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:08:08,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-11-22 01:08:08,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:08:08,657 INFO L225 Difference]: With dead ends: 1339 [2022-11-22 01:08:08,658 INFO L226 Difference]: Without dead ends: 698 [2022-11-22 01:08:08,661 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 01:08:08,668 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 34 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:08:08,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1266 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:08:08,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2022-11-22 01:08:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 691. [2022-11-22 01:08:08,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 452 states have (on average 1.3606194690265487) internal successors, (615), 463 states have internal predecessors, (615), 179 states have call successors, (179), 61 states have call predecessors, (179), 59 states have return successors, (184), 171 states have call predecessors, (184), 176 states have call successors, (184) [2022-11-22 01:08:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 978 transitions. [2022-11-22 01:08:08,727 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 978 transitions. Word has length 35 [2022-11-22 01:08:08,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:08:08,728 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 978 transitions. [2022-11-22 01:08:08,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-22 01:08:08,728 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 978 transitions. [2022-11-22 01:08:08,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-22 01:08:08,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:08,732 INFO L195 NwaCegarLoop]: trace histogram [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 01:08:08,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:08:08,733 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:08,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:08,733 INFO L85 PathProgramCache]: Analyzing trace with hash 723843051, now seen corresponding path program 1 times [2022-11-22 01:08:08,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:08,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134188706] [2022-11-22 01:08:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:08,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:09,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:08:09,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:09,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134188706] [2022-11-22 01:08:09,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134188706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:08:09,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:08:09,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:08:09,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556070509] [2022-11-22 01:08:09,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:08:09,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:08:09,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:08:09,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:08:09,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:08:09,048 INFO L87 Difference]: Start difference. First operand 691 states and 978 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-22 01:08:10,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:08:10,072 INFO L93 Difference]: Finished difference Result 750 states and 1038 transitions. [2022-11-22 01:08:10,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:08:10,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 43 [2022-11-22 01:08:10,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:08:10,077 INFO L225 Difference]: With dead ends: 750 [2022-11-22 01:08:10,077 INFO L226 Difference]: Without dead ends: 747 [2022-11-22 01:08:10,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:08:10,079 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 388 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:08:10,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1995 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:08:10,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2022-11-22 01:08:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 747. [2022-11-22 01:08:10,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 484 states have (on average 1.3471074380165289) internal successors, (652), 495 states have internal predecessors, (652), 189 states have call successors, (189), 76 states have call predecessors, (189), 73 states have return successors, (194), 181 states have call predecessors, (194), 186 states have call successors, (194) [2022-11-22 01:08:10,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1035 transitions. [2022-11-22 01:08:10,124 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1035 transitions. Word has length 43 [2022-11-22 01:08:10,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:08:10,125 INFO L495 AbstractCegarLoop]: Abstraction has 747 states and 1035 transitions. [2022-11-22 01:08:10,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-22 01:08:10,125 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1035 transitions. [2022-11-22 01:08:10,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-22 01:08:10,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:10,128 INFO L195 NwaCegarLoop]: trace histogram [3, 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 01:08:10,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:08:10,128 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:10,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:10,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1560851364, now seen corresponding path program 1 times [2022-11-22 01:08:10,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:10,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659051164] [2022-11-22 01:08:10,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:10,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:10,572 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:08:10,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:10,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659051164] [2022-11-22 01:08:10,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659051164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:08:10,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:08:10,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:08:10,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285275288] [2022-11-22 01:08:10,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:08:10,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:08:10,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:08:10,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:08:10,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:08:10,574 INFO L87 Difference]: Start difference. First operand 747 states and 1035 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:08:13,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:08:13,212 INFO L93 Difference]: Finished difference Result 907 states and 1258 transitions. [2022-11-22 01:08:13,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:08:13,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2022-11-22 01:08:13,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:08:13,219 INFO L225 Difference]: With dead ends: 907 [2022-11-22 01:08:13,219 INFO L226 Difference]: Without dead ends: 897 [2022-11-22 01:08:13,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:08:13,222 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 597 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:08:13,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 1718 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-22 01:08:13,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-11-22 01:08:13,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 872. [2022-11-22 01:08:13,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 566 states have (on average 1.3462897526501767) internal successors, (762), 578 states have internal predecessors, (762), 218 states have call successors, (218), 90 states have call predecessors, (218), 87 states have return successors, (223), 210 states have call predecessors, (223), 215 states have call successors, (223) [2022-11-22 01:08:13,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1203 transitions. [2022-11-22 01:08:13,284 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1203 transitions. Word has length 46 [2022-11-22 01:08:13,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:08:13,284 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1203 transitions. [2022-11-22 01:08:13,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:08:13,285 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1203 transitions. [2022-11-22 01:08:13,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-22 01:08:13,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:13,287 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:08:13,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:08:13,288 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:13,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:13,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1188169365, now seen corresponding path program 1 times [2022-11-22 01:08:13,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:13,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629199034] [2022-11-22 01:08:13,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:13,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:13,439 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:08:13,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:13,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629199034] [2022-11-22 01:08:13,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629199034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:08:13,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:08:13,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:08:13,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930198057] [2022-11-22 01:08:13,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:08:13,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:08:13,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:08:13,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:08:13,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:08:13,442 INFO L87 Difference]: Start difference. First operand 872 states and 1203 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-22 01:08:14,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:08:14,143 INFO L93 Difference]: Finished difference Result 1756 states and 2422 transitions. [2022-11-22 01:08:14,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:08:14,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2022-11-22 01:08:14,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:08:14,149 INFO L225 Difference]: With dead ends: 1756 [2022-11-22 01:08:14,149 INFO L226 Difference]: Without dead ends: 882 [2022-11-22 01:08:14,153 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 01:08:14,154 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 13 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:08:14,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1937 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:08:14,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2022-11-22 01:08:14,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 875. [2022-11-22 01:08:14,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 568 states have (on average 1.341549295774648) internal successors, (762), 580 states have internal predecessors, (762), 219 states have call successors, (219), 90 states have call predecessors, (219), 87 states have return successors, (224), 211 states have call predecessors, (224), 216 states have call successors, (224) [2022-11-22 01:08:14,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1205 transitions. [2022-11-22 01:08:14,216 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1205 transitions. Word has length 57 [2022-11-22 01:08:14,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:08:14,216 INFO L495 AbstractCegarLoop]: Abstraction has 875 states and 1205 transitions. [2022-11-22 01:08:14,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-22 01:08:14,217 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1205 transitions. [2022-11-22 01:08:14,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-22 01:08:14,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:14,219 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:08:14,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:08:14,220 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:14,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:14,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1491442427, now seen corresponding path program 1 times [2022-11-22 01:08:14,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:14,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37048531] [2022-11-22 01:08:14,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:14,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:14,647 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 01:08:14,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:14,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37048531] [2022-11-22 01:08:14,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37048531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:08:14,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:08:14,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:08:14,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492692205] [2022-11-22 01:08:14,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:08:14,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:08:14,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:08:14,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:08:14,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:08:14,649 INFO L87 Difference]: Start difference. First operand 875 states and 1205 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:08:15,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:08:15,550 INFO L93 Difference]: Finished difference Result 1051 states and 1485 transitions. [2022-11-22 01:08:15,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:08:15,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 64 [2022-11-22 01:08:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:08:15,558 INFO L225 Difference]: With dead ends: 1051 [2022-11-22 01:08:15,559 INFO L226 Difference]: Without dead ends: 1048 [2022-11-22 01:08:15,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:08:15,561 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 125 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2672 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:08:15,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2672 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:08:15,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2022-11-22 01:08:15,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 891. [2022-11-22 01:08:15,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 578 states have (on average 1.3391003460207613) internal successors, (774), 590 states have internal predecessors, (774), 222 states have call successors, (222), 93 states have call predecessors, (222), 90 states have return successors, (227), 214 states have call predecessors, (227), 219 states have call successors, (227) [2022-11-22 01:08:15,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1223 transitions. [2022-11-22 01:08:15,633 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1223 transitions. Word has length 64 [2022-11-22 01:08:15,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:08:15,634 INFO L495 AbstractCegarLoop]: Abstraction has 891 states and 1223 transitions. [2022-11-22 01:08:15,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-22 01:08:15,634 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1223 transitions. [2022-11-22 01:08:15,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-22 01:08:15,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:15,637 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:08:15,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:08:15,637 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:15,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:15,638 INFO L85 PathProgramCache]: Analyzing trace with hash -790777785, now seen corresponding path program 1 times [2022-11-22 01:08:15,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:15,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923273575] [2022-11-22 01:08:15,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:15,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:15,818 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:08:15,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:15,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923273575] [2022-11-22 01:08:15,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923273575] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:08:15,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941009608] [2022-11-22 01:08:15,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:15,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:08:15,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:08:15,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:08:15,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3822d-345f-4f8b-9e88-e85991861cf9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:08:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:16,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:08:16,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:08:16,378 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:08:16,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:08:16,535 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:08:16,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941009608] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:08:16,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [177038964] [2022-11-22 01:08:16,554 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-11-22 01:08:16,554 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:08:16,558 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:08:16,563 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:08:16,563 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:08:19,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:19,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:19,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:19,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:19,635 INFO L217 Elim1Store]: Index analysis took 125 ms [2022-11-22 01:08:22,527 INFO L321 Elim1Store]: treesize reduction 1620, result has 18.7 percent of original size [2022-11-22 01:08:22,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 23 select indices, 23 select index equivalence classes, 179 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 97 case distinctions, treesize of input 155 treesize of output 481 [2022-11-22 01:08:22,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:22,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:22,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:22,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:22,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 235 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 165 [2022-11-22 01:08:23,828 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 01:08:23,838 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 8 treesize of output 7 [2022-11-22 01:08:24,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:24,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:24,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:24,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:24,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 235 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 67 [2022-11-22 01:08:24,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:24,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:24,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:24,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:24,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 23 select indices, 23 select index equivalence classes, 253 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 70 [2022-11-22 01:08:25,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:25,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:25,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:25,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:25,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 235 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 67 [2022-11-22 01:08:26,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:26,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:26,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:26,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:26,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 23 select indices, 23 select index equivalence classes, 253 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 70 [2022-11-22 01:08:30,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 78 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-22 01:08:31,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:31,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,408 INFO L321 Elim1Store]: treesize reduction 948, result has 30.4 percent of original size [2022-11-22 01:08:32,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 34 select indices, 34 select index equivalence classes, 407 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 35 case distinctions, treesize of input 338 treesize of output 525 [2022-11-22 01:08:32,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:32,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:33,951 INFO L321 Elim1Store]: treesize reduction 796, result has 41.6 percent of original size [2022-11-22 01:08:33,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 32 select indices, 32 select index equivalence classes, 45 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 33 case distinctions, treesize of input 266 treesize of output 662 [2022-11-22 01:08:34,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:34,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:36,389 INFO L321 Elim1Store]: treesize reduction 698, result has 48.8 percent of original size [2022-11-22 01:08:36,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 34 select indices, 34 select index equivalence classes, 407 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 35 case distinctions, treesize of input 338 treesize of output 775 [2022-11-22 01:08:37,011 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 76