./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI --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 037f6e8e4bd200c248573cc05d02b8c7bc97a7f8cca3135a2970ec46958bec59 --- 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-5e519f3 [2022-11-03 03:43:43,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:43:43,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:43:43,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:43:43,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:43:43,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:43:43,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:43:43,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:43:43,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:43:43,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:43:43,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:43:43,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:43:43,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:43:43,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:43:43,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:43:43,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:43:43,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:43:43,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:43:43,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:43:43,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:43:43,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:43:43,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:43:43,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:43:43,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:43:43,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:43:43,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:43:43,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:43:43,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:43:43,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:43:43,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:43:43,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:43:43,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:43:43,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:43:43,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:43:43,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:43:43,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:43:43,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:43:43,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:43:43,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:43:43,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:43:43,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:43:43,898 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:43:43,942 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:43:43,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:43:43,943 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:43:43,943 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:43:43,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:43:43,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:43:43,944 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:43:43,945 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:43:43,945 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:43:43,945 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:43:43,946 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:43:43,946 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:43:43,947 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:43:43,947 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:43:43,947 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:43:43,947 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:43:43,947 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:43:43,948 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:43:43,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:43:43,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:43:43,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:43:43,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:43:43,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:43:43,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:43:43,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:43:43,950 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:43:43,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:43:43,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:43:43,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:43:43,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:43:43,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:43:43,952 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:43:43,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:43:43,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:43:43,952 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:43:43,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:43:43,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:43:43,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:43:43,953 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_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 037f6e8e4bd200c248573cc05d02b8c7bc97a7f8cca3135a2970ec46958bec59 [2022-11-03 03:43:44,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:43:44,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:43:44,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:43:44,295 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:43:44,295 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:43:44,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-11-03 03:43:44,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/data/daafa80b2/2d62b331d13b4406b845a7c9892057a0/FLAG65c7df0d1 [2022-11-03 03:43:45,226 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:43:45,228 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-11-03 03:43:45,277 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/data/daafa80b2/2d62b331d13b4406b845a7c9892057a0/FLAG65c7df0d1 [2022-11-03 03:43:45,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/data/daafa80b2/2d62b331d13b4406b845a7c9892057a0 [2022-11-03 03:43:45,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:43:45,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:43:45,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:43:45,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:43:45,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:43:45,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:43:45" (1/1) ... [2022-11-03 03:43:45,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d3327e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:45, skipping insertion in model container [2022-11-03 03:43:45,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:43:45" (1/1) ... [2022-11-03 03:43:45,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:43:45,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:43:46,921 WARN L230 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_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2022-11-03 03:43:47,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:43:47,560 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:43:47,733 WARN L230 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_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2022-11-03 03:43:47,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:43:47,881 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:43:47,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:47 WrapperNode [2022-11-03 03:43:47,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:43:47,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:43:47,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:43:47,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:43:47,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:47" (1/1) ... [2022-11-03 03:43:47,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:47" (1/1) ... [2022-11-03 03:43:48,069 INFO L138 Inliner]: procedures = 175, calls = 709, calls flagged for inlining = 71, calls inlined = 62, statements flattened = 1874 [2022-11-03 03:43:48,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:43:48,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:43:48,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:43:48,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:43:48,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:47" (1/1) ... [2022-11-03 03:43:48,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:47" (1/1) ... [2022-11-03 03:43:48,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:47" (1/1) ... [2022-11-03 03:43:48,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:47" (1/1) ... [2022-11-03 03:43:48,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:47" (1/1) ... [2022-11-03 03:43:48,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:47" (1/1) ... [2022-11-03 03:43:48,241 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:47" (1/1) ... [2022-11-03 03:43:48,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:47" (1/1) ... [2022-11-03 03:43:48,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:43:48,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:43:48,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:43:48,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:43:48,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:47" (1/1) ... [2022-11-03 03:43:48,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:43:48,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:43:48,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:43:48,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:43:48,379 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_scatter [2022-11-03 03:43:48,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_scatter [2022-11-03 03:43:48,379 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 03:43:48,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 03:43:48,380 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_out [2022-11-03 03:43:48,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_out [2022-11-03 03:43:48,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:43:48,380 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-03 03:43:48,380 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-03 03:43:48,380 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-03 03:43:48,381 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-03 03:43:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:43:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:43:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:43:48,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:43:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:43:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-03 03:43:48,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-03 03:43:48,382 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_diag_write32 [2022-11-03 03:43:48,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_diag_write32 [2022-11-03 03:43:48,382 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_destroy [2022-11-03 03:43:48,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_destroy [2022-11-03 03:43:48,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-03 03:43:48,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-03 03:43:48,383 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 03:43:48,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 03:43:48,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:43:48,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:43:48,384 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_default_pipe [2022-11-03 03:43:48,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_default_pipe [2022-11-03 03:43:48,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-03 03:43:48,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-03 03:43:48,385 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:43:48,385 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:43:48,385 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_off [2022-11-03 03:43:48,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_off [2022-11-03 03:43:48,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:43:48,386 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_bmi_read [2022-11-03 03:43:48,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_bmi_read [2022-11-03 03:43:48,386 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-03 03:43:48,386 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-03 03:43:48,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 03:43:48,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 03:43:48,387 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_stop [2022-11-03 03:43:48,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_stop [2022-11-03 03:43:48,387 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_free_queue_number [2022-11-03 03:43:48,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_free_queue_number [2022-11-03 03:43:48,388 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_free_urb_to_pipe [2022-11-03 03:43:48,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_free_urb_to_pipe [2022-11-03 03:43:48,389 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_flush_all [2022-11-03 03:43:48,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_flush_all [2022-11-03 03:43:48,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-03 03:43:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:43:48,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:43:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:43:48,391 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:43:48,392 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_ctrl_msg_exchange [2022-11-03 03:43:48,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_ctrl_msg_exchange [2022-11-03 03:43:48,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:43:48,392 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_recv_urb [2022-11-03 03:43:48,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_recv_urb [2022-11-03 03:43:48,392 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:43:48,393 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:43:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_in [2022-11-03 03:43:48,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_in [2022-11-03 03:43:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:43:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_on [2022-11-03 03:43:48,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_on [2022-11-03 03:43:48,394 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_priv [2022-11-03 03:43:48,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_priv [2022-11-03 03:43:48,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:43:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:43:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 03:43:48,395 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 03:43:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:43:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-03 03:43:48,395 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-03 03:43:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-03 03:43:48,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-03 03:43:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_alloc_urb_from_pipe [2022-11-03 03:43:48,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_alloc_urb_from_pipe [2022-11-03 03:43:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-03 03:43:48,397 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_remove [2022-11-03 03:43:48,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_remove [2022-11-03 03:43:48,397 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-03 03:43:48,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-03 03:43:48,398 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:43:48,398 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:43:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-11-03 03:43:48,399 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-11-03 03:43:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:43:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:43:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_post_recv_transfers [2022-11-03 03:43:48,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_post_recv_transfers [2022-11-03 03:43:48,401 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 03:43:48,401 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 03:43:48,401 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 03:43:48,401 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 03:43:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_map_service_pipe [2022-11-03 03:43:48,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_map_service_pipe [2022-11-03 03:43:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 03:43:48,402 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 03:43:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-11-03 03:43:48,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-11-03 03:43:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-03 03:43:48,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-03 03:43:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:43:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_send [2022-11-03 03:43:48,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_send [2022-11-03 03:43:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-03 03:43:48,405 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-03 03:43:48,407 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-03 03:43:48,407 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-03 03:43:48,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:43:48,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-11-03 03:43:48,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 03:43:48,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 03:43:48,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:43:48,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:43:49,024 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:43:49,027 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:43:49,162 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:43:52,220 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:43:52,776 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:43:52,776 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 03:43:52,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:43:52 BoogieIcfgContainer [2022-11-03 03:43:52,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:43:52,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:43:52,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:43:52,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:43:52,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:43:45" (1/3) ... [2022-11-03 03:43:52,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b1af80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:43:52, skipping insertion in model container [2022-11-03 03:43:52,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:47" (2/3) ... [2022-11-03 03:43:52,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b1af80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:43:52, skipping insertion in model container [2022-11-03 03:43:52,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:43:52" (3/3) ... [2022-11-03 03:43:52,795 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-11-03 03:43:52,815 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:43:52,815 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:43:52,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:43:52,919 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;@42c9174d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:43:52,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:43:52,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 564 states, 355 states have (on average 1.3746478873239436) internal successors, (488), 369 states have internal predecessors, (488), 158 states have call successors, (158), 50 states have call predecessors, (158), 49 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2022-11-03 03:43:52,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-03 03:43:52,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:52,940 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2022-11-03 03:43:52,940 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:52,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:52,946 INFO L85 PathProgramCache]: Analyzing trace with hash 682207486, now seen corresponding path program 1 times [2022-11-03 03:43:52,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:52,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144679719] [2022-11-03 03:43:52,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:52,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-03 03:43:53,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:53,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144679719] [2022-11-03 03:43:53,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144679719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:53,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:53,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:43:53,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574368006] [2022-11-03 03:43:53,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:53,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:43:53,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:53,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:43:53,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:53,859 INFO L87 Difference]: Start difference. First operand has 564 states, 355 states have (on average 1.3746478873239436) internal successors, (488), 369 states have internal predecessors, (488), 158 states have call successors, (158), 50 states have call predecessors, (158), 49 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-03 03:43:55,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:56,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:56,773 INFO L93 Difference]: Finished difference Result 1624 states and 2324 transitions. [2022-11-03 03:43:56,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:43:56,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2022-11-03 03:43:56,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:56,794 INFO L225 Difference]: With dead ends: 1624 [2022-11-03 03:43:56,794 INFO L226 Difference]: Without dead ends: 1075 [2022-11-03 03:43:56,802 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 [2022-11-03 03:43:56,805 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 736 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:56,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1549 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 181 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-03 03:43:56,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2022-11-03 03:43:56,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 1075. [2022-11-03 03:43:56,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 686 states have (on average 1.3556851311953353) internal successors, (930), 702 states have internal predecessors, (930), 292 states have call successors, (292), 97 states have call predecessors, (292), 96 states have return successors, (291), 291 states have call predecessors, (291), 291 states have call successors, (291) [2022-11-03 03:43:56,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1513 transitions. [2022-11-03 03:43:56,946 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1513 transitions. Word has length 87 [2022-11-03 03:43:56,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:56,947 INFO L495 AbstractCegarLoop]: Abstraction has 1075 states and 1513 transitions. [2022-11-03 03:43:56,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-03 03:43:56,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1513 transitions. [2022-11-03 03:43:56,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-03 03:43:56,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:56,953 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:43:56,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:43:56,954 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:56,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:56,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1036724674, now seen corresponding path program 1 times [2022-11-03 03:43:56,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:56,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255826742] [2022-11-03 03:43:56,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:56,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:57,561 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-03 03:43:57,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:57,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255826742] [2022-11-03 03:43:57,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255826742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:57,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:57,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:43:57,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222100242] [2022-11-03 03:43:57,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:57,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:43:57,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:57,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:43:57,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:43:57,566 INFO L87 Difference]: Start difference. First operand 1075 states and 1513 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:44:00,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:00,116 INFO L93 Difference]: Finished difference Result 2123 states and 3006 transitions. [2022-11-03 03:44:00,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:44:00,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 96 [2022-11-03 03:44:00,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:00,132 INFO L225 Difference]: With dead ends: 2123 [2022-11-03 03:44:00,133 INFO L226 Difference]: Without dead ends: 2118 [2022-11-03 03:44:00,135 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 [2022-11-03 03:44:00,136 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 762 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:00,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 2387 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-03 03:44:00,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2022-11-03 03:44:00,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 2110. [2022-11-03 03:44:00,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2110 states, 1347 states have (on average 1.358574610244989) internal successors, (1830), 1379 states have internal predecessors, (1830), 570 states have call successors, (570), 193 states have call predecessors, (570), 192 states have return successors, (589), 569 states have call predecessors, (589), 569 states have call successors, (589) [2022-11-03 03:44:00,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2110 states to 2110 states and 2989 transitions. [2022-11-03 03:44:00,287 INFO L78 Accepts]: Start accepts. Automaton has 2110 states and 2989 transitions. Word has length 96 [2022-11-03 03:44:00,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:00,288 INFO L495 AbstractCegarLoop]: Abstraction has 2110 states and 2989 transitions. [2022-11-03 03:44:00,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:44:00,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2110 states and 2989 transitions. [2022-11-03 03:44:00,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-03 03:44:00,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:00,304 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:00,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:44:00,305 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:00,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:00,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1560695554, now seen corresponding path program 1 times [2022-11-03 03:44:00,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:00,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358768395] [2022-11-03 03:44:00,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:00,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-11-03 03:44:00,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:00,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358768395] [2022-11-03 03:44:00,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358768395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:00,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:00,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:44:00,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303113024] [2022-11-03 03:44:00,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:00,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:44:00,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:00,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:44:00,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:44:00,585 INFO L87 Difference]: Start difference. First operand 2110 states and 2989 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 03:44:02,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:02,547 INFO L93 Difference]: Finished difference Result 5614 states and 7901 transitions. [2022-11-03 03:44:02,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:44:02,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 199 [2022-11-03 03:44:02,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:02,568 INFO L225 Difference]: With dead ends: 5614 [2022-11-03 03:44:02,569 INFO L226 Difference]: Without dead ends: 3531 [2022-11-03 03:44:02,577 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 [2022-11-03 03:44:02,578 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 527 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:02,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 1505 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 03:44:02,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2022-11-03 03:44:02,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 3524. [2022-11-03 03:44:02,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 2253 states have (on average 1.359520639147803) internal successors, (3063), 2301 states have internal predecessors, (3063), 922 states have call successors, (922), 349 states have call predecessors, (922), 348 states have return successors, (957), 921 states have call predecessors, (957), 921 states have call successors, (957) [2022-11-03 03:44:02,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 4942 transitions. [2022-11-03 03:44:02,762 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 4942 transitions. Word has length 199 [2022-11-03 03:44:02,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:02,765 INFO L495 AbstractCegarLoop]: Abstraction has 3524 states and 4942 transitions. [2022-11-03 03:44:02,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 03:44:02,766 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 4942 transitions. [2022-11-03 03:44:02,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-03 03:44:02,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:02,781 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:02,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:44:02,782 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:02,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:02,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1528554013, now seen corresponding path program 1 times [2022-11-03 03:44:02,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:02,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417237343] [2022-11-03 03:44:02,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:02,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:03,075 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-11-03 03:44:03,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:03,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417237343] [2022-11-03 03:44:03,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417237343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:03,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:03,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:44:03,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410600657] [2022-11-03 03:44:03,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:03,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:44:03,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:03,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:44:03,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:44:03,080 INFO L87 Difference]: Start difference. First operand 3524 states and 4942 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 03:44:05,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:06,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:06,267 INFO L93 Difference]: Finished difference Result 8260 states and 11531 transitions. [2022-11-03 03:44:06,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:44:06,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 190 [2022-11-03 03:44:06,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:06,293 INFO L225 Difference]: With dead ends: 8260 [2022-11-03 03:44:06,293 INFO L226 Difference]: Without dead ends: 4763 [2022-11-03 03:44:06,306 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 [2022-11-03 03:44:06,309 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 402 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:06,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 1451 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 285 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-11-03 03:44:06,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2022-11-03 03:44:06,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 4758. [2022-11-03 03:44:06,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4758 states, 3057 states have (on average 1.3509977101733726) internal successors, (4130), 3133 states have internal predecessors, (4130), 1220 states have call successors, (1220), 481 states have call predecessors, (1220), 480 states have return successors, (1267), 1219 states have call predecessors, (1267), 1219 states have call successors, (1267) [2022-11-03 03:44:06,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4758 states to 4758 states and 6617 transitions. [2022-11-03 03:44:06,582 INFO L78 Accepts]: Start accepts. Automaton has 4758 states and 6617 transitions. Word has length 190 [2022-11-03 03:44:06,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:06,583 INFO L495 AbstractCegarLoop]: Abstraction has 4758 states and 6617 transitions. [2022-11-03 03:44:06,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 03:44:06,583 INFO L276 IsEmpty]: Start isEmpty. Operand 4758 states and 6617 transitions. [2022-11-03 03:44:06,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-03 03:44:06,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:06,598 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:06,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:44:06,599 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:06,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:06,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1428517795, now seen corresponding path program 1 times [2022-11-03 03:44:06,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:06,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719835332] [2022-11-03 03:44:06,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:06,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:06,971 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-11-03 03:44:06,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:06,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719835332] [2022-11-03 03:44:06,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719835332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:06,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:06,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:44:06,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51308824] [2022-11-03 03:44:06,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:06,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:44:06,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:06,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:44:06,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:44:06,976 INFO L87 Difference]: Start difference. First operand 4758 states and 6617 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-03 03:44:09,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:10,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:10,088 INFO L93 Difference]: Finished difference Result 11426 states and 15840 transitions. [2022-11-03 03:44:10,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:44:10,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 211 [2022-11-03 03:44:10,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:10,130 INFO L225 Difference]: With dead ends: 11426 [2022-11-03 03:44:10,130 INFO L226 Difference]: Without dead ends: 6695 [2022-11-03 03:44:10,151 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 [2022-11-03 03:44:10,151 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 673 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:10,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1422 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-03 03:44:10,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6695 states. [2022-11-03 03:44:10,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6695 to 6686. [2022-11-03 03:44:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6686 states, 4321 states have (on average 1.3469104373987504) internal successors, (5820), 4421 states have internal predecessors, (5820), 1658 states have call successors, (1658), 707 states have call predecessors, (1658), 706 states have return successors, (1721), 1657 states have call predecessors, (1721), 1657 states have call successors, (1721) [2022-11-03 03:44:10,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6686 states to 6686 states and 9199 transitions. [2022-11-03 03:44:10,640 INFO L78 Accepts]: Start accepts. Automaton has 6686 states and 9199 transitions. Word has length 211 [2022-11-03 03:44:10,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:10,643 INFO L495 AbstractCegarLoop]: Abstraction has 6686 states and 9199 transitions. [2022-11-03 03:44:10,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-03 03:44:10,646 INFO L276 IsEmpty]: Start isEmpty. Operand 6686 states and 9199 transitions. [2022-11-03 03:44:10,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-03 03:44:10,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:10,665 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:10,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:44:10,666 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:10,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:10,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1640274788, now seen corresponding path program 1 times [2022-11-03 03:44:10,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:10,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249289674] [2022-11-03 03:44:10,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:10,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:10,941 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2022-11-03 03:44:10,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:10,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249289674] [2022-11-03 03:44:10,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249289674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:10,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:10,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:44:10,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195993948] [2022-11-03 03:44:10,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:10,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:44:10,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:10,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:44:10,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:44:10,944 INFO L87 Difference]: Start difference. First operand 6686 states and 9199 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-03 03:44:13,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:13,576 INFO L93 Difference]: Finished difference Result 17562 states and 24146 transitions. [2022-11-03 03:44:13,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:44:13,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 201 [2022-11-03 03:44:13,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:13,634 INFO L225 Difference]: With dead ends: 17562 [2022-11-03 03:44:13,634 INFO L226 Difference]: Without dead ends: 10903 [2022-11-03 03:44:13,661 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 [2022-11-03 03:44:13,661 INFO L413 NwaCegarLoop]: 946 mSDtfsCounter, 608 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:13,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 1529 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-03 03:44:13,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10903 states. [2022-11-03 03:44:14,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10903 to 10898. [2022-11-03 03:44:14,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10898 states, 7147 states have (on average 1.3194347278578424) internal successors, (9430), 7315 states have internal predecessors, (9430), 2536 states have call successors, (2536), 1215 states have call predecessors, (2536), 1214 states have return successors, (2633), 2535 states have call predecessors, (2633), 2535 states have call successors, (2633) [2022-11-03 03:44:14,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10898 states to 10898 states and 14599 transitions. [2022-11-03 03:44:14,214 INFO L78 Accepts]: Start accepts. Automaton has 10898 states and 14599 transitions. Word has length 201 [2022-11-03 03:44:14,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:14,215 INFO L495 AbstractCegarLoop]: Abstraction has 10898 states and 14599 transitions. [2022-11-03 03:44:14,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-03 03:44:14,215 INFO L276 IsEmpty]: Start isEmpty. Operand 10898 states and 14599 transitions. [2022-11-03 03:44:14,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-03 03:44:14,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:14,239 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:14,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:44:14,239 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:14,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:14,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1210075684, now seen corresponding path program 1 times [2022-11-03 03:44:14,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:14,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243788965] [2022-11-03 03:44:14,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:14,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:14,477 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2022-11-03 03:44:14,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:14,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243788965] [2022-11-03 03:44:14,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243788965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:14,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:14,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:44:14,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493614297] [2022-11-03 03:44:14,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:14,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:44:14,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:14,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:44:14,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:44:14,480 INFO L87 Difference]: Start difference. First operand 10898 states and 14599 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 03:44:16,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:17,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:17,400 INFO L93 Difference]: Finished difference Result 16420 states and 22125 transitions. [2022-11-03 03:44:17,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:44:17,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 201 [2022-11-03 03:44:17,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:17,456 INFO L225 Difference]: With dead ends: 16420 [2022-11-03 03:44:17,457 INFO L226 Difference]: Without dead ends: 10954 [2022-11-03 03:44:17,478 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 [2022-11-03 03:44:17,479 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 4 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:17,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1388 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-11-03 03:44:17,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10954 states. [2022-11-03 03:44:18,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10954 to 10954. [2022-11-03 03:44:18,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10954 states, 7189 states have (on average 1.3175685074419252) internal successors, (9472), 7371 states have internal predecessors, (9472), 2536 states have call successors, (2536), 1215 states have call predecessors, (2536), 1228 states have return successors, (2647), 2535 states have call predecessors, (2647), 2535 states have call successors, (2647) [2022-11-03 03:44:18,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10954 states to 10954 states and 14655 transitions. [2022-11-03 03:44:18,120 INFO L78 Accepts]: Start accepts. Automaton has 10954 states and 14655 transitions. Word has length 201 [2022-11-03 03:44:18,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:18,121 INFO L495 AbstractCegarLoop]: Abstraction has 10954 states and 14655 transitions. [2022-11-03 03:44:18,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 03:44:18,122 INFO L276 IsEmpty]: Start isEmpty. Operand 10954 states and 14655 transitions. [2022-11-03 03:44:18,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-03 03:44:18,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:18,142 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:18,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:44:18,143 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:18,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:18,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1302814115, now seen corresponding path program 1 times [2022-11-03 03:44:18,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:18,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357124335] [2022-11-03 03:44:18,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:18,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2022-11-03 03:44:19,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:19,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357124335] [2022-11-03 03:44:19,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357124335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:19,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:19,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:44:19,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352522059] [2022-11-03 03:44:19,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:19,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:44:19,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:19,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:44:19,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:44:19,268 INFO L87 Difference]: Start difference. First operand 10954 states and 14655 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 5 states have call successors, (32), 4 states have call predecessors, (32), 3 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-03 03:44:21,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:25,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:25,382 INFO L93 Difference]: Finished difference Result 22809 states and 30646 transitions. [2022-11-03 03:44:25,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:44:25,382 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 5 states have call successors, (32), 4 states have call predecessors, (32), 3 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) Word has length 202 [2022-11-03 03:44:25,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:25,423 INFO L225 Difference]: With dead ends: 22809 [2022-11-03 03:44:25,423 INFO L226 Difference]: Without dead ends: 11882 [2022-11-03 03:44:25,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:44:25,450 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 1125 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 747 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 2981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:25,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 2196 Invalid, 2981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [747 Valid, 2233 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-03 03:44:25,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11882 states. [2022-11-03 03:44:26,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11882 to 11600. [2022-11-03 03:44:26,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11600 states, 7526 states have (on average 1.3087961732660112) internal successors, (9850), 7764 states have internal predecessors, (9850), 2733 states have call successors, (2733), 1273 states have call predecessors, (2733), 1340 states have return successors, (2886), 2758 states have call predecessors, (2886), 2732 states have call successors, (2886) [2022-11-03 03:44:26,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11600 states to 11600 states and 15469 transitions. [2022-11-03 03:44:26,107 INFO L78 Accepts]: Start accepts. Automaton has 11600 states and 15469 transitions. Word has length 202 [2022-11-03 03:44:26,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:26,108 INFO L495 AbstractCegarLoop]: Abstraction has 11600 states and 15469 transitions. [2022-11-03 03:44:26,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 5 states have call successors, (32), 4 states have call predecessors, (32), 3 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-03 03:44:26,108 INFO L276 IsEmpty]: Start isEmpty. Operand 11600 states and 15469 transitions. [2022-11-03 03:44:26,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-03 03:44:26,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:26,134 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:26,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 03:44:26,134 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:26,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:26,136 INFO L85 PathProgramCache]: Analyzing trace with hash 586629174, now seen corresponding path program 1 times [2022-11-03 03:44:26,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:26,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705130636] [2022-11-03 03:44:26,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:26,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:26,697 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-11-03 03:44:26,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:26,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705130636] [2022-11-03 03:44:26,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705130636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:26,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:26,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:44:26,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85145628] [2022-11-03 03:44:26,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:26,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:44:26,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:26,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:44:26,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:44:26,701 INFO L87 Difference]: Start difference. First operand 11600 states and 15469 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 03:44:29,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:31,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:32,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:32,913 INFO L93 Difference]: Finished difference Result 23339 states and 31374 transitions. [2022-11-03 03:44:32,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:44:32,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 202 [2022-11-03 03:44:32,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:32,959 INFO L225 Difference]: With dead ends: 23339 [2022-11-03 03:44:32,960 INFO L226 Difference]: Without dead ends: 11774 [2022-11-03 03:44:32,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:44:32,995 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 2 mSDsluCounter, 2327 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:32,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2765 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 368 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-03 03:44:33,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11774 states. [2022-11-03 03:44:33,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11774 to 11712. [2022-11-03 03:44:33,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11712 states, 7610 states have (on average 1.3053876478318003) internal successors, (9934), 7848 states have internal predecessors, (9934), 2733 states have call successors, (2733), 1273 states have call predecessors, (2733), 1368 states have return successors, (2920), 2786 states have call predecessors, (2920), 2732 states have call successors, (2920) [2022-11-03 03:44:33,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11712 states to 11712 states and 15587 transitions. [2022-11-03 03:44:33,619 INFO L78 Accepts]: Start accepts. Automaton has 11712 states and 15587 transitions. Word has length 202 [2022-11-03 03:44:33,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:33,622 INFO L495 AbstractCegarLoop]: Abstraction has 11712 states and 15587 transitions. [2022-11-03 03:44:33,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 03:44:33,622 INFO L276 IsEmpty]: Start isEmpty. Operand 11712 states and 15587 transitions. [2022-11-03 03:44:33,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-03 03:44:33,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:33,643 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:33,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 03:44:33,644 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:33,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:33,649 INFO L85 PathProgramCache]: Analyzing trace with hash -2126648227, now seen corresponding path program 1 times [2022-11-03 03:44:33,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:33,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983141921] [2022-11-03 03:44:33,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:33,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:34,024 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2022-11-03 03:44:34,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:34,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983141921] [2022-11-03 03:44:34,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983141921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:34,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:34,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:44:34,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609580450] [2022-11-03 03:44:34,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:34,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:44:34,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:34,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:44:34,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:44:34,028 INFO L87 Difference]: Start difference. First operand 11712 states and 15587 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2022-11-03 03:44:35,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:37,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:37,685 INFO L93 Difference]: Finished difference Result 23425 states and 31270 transitions. [2022-11-03 03:44:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:44:37,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) Word has length 206 [2022-11-03 03:44:37,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:37,729 INFO L225 Difference]: With dead ends: 23425 [2022-11-03 03:44:37,730 INFO L226 Difference]: Without dead ends: 11748 [2022-11-03 03:44:37,758 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 [2022-11-03 03:44:37,759 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 0 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:37,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1394 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-03 03:44:37,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11748 states. [2022-11-03 03:44:38,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11748 to 11748. [2022-11-03 03:44:38,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11748 states, 7646 states have (on average 1.3039497776615223) internal successors, (9970), 7884 states have internal predecessors, (9970), 2733 states have call successors, (2733), 1273 states have call predecessors, (2733), 1368 states have return successors, (2920), 2786 states have call predecessors, (2920), 2732 states have call successors, (2920) [2022-11-03 03:44:38,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11748 states to 11748 states and 15623 transitions. [2022-11-03 03:44:38,554 INFO L78 Accepts]: Start accepts. Automaton has 11748 states and 15623 transitions. Word has length 206 [2022-11-03 03:44:38,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:38,555 INFO L495 AbstractCegarLoop]: Abstraction has 11748 states and 15623 transitions. [2022-11-03 03:44:38,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2022-11-03 03:44:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 11748 states and 15623 transitions. [2022-11-03 03:44:38,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-03 03:44:38,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:38,580 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:38,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 03:44:38,581 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:38,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:38,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1164739267, now seen corresponding path program 1 times [2022-11-03 03:44:38,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:38,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270609125] [2022-11-03 03:44:38,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:38,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:38,890 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2022-11-03 03:44:38,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:38,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270609125] [2022-11-03 03:44:38,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270609125] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:44:38,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073802165] [2022-11-03 03:44:38,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:38,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:44:38,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:44:38,894 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:44:38,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ae7f47e-c1a2-4aff-9f48-3ff9a649005a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:44:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:39,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 2108 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:44:39,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:39,731 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2022-11-03 03:44:39,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:44:39,984 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2022-11-03 03:44:39,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073802165] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:44:39,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [903155901] [2022-11-03 03:44:40,009 INFO L159 IcfgInterpreter]: Started Sifa with 138 locations of interest [2022-11-03 03:44:40,009 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:44:40,013 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:44:40,019 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:44:40,019 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:44:40,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,961 INFO L244 Elim1Store]: Index analysis took 148 ms [2022-11-03 03:44:49,728 WARN L234 SmtUtils]: Spent 8.73s on a formula simplification. DAG size of input: 927 DAG size of output: 463 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 03:44:49,732 INFO L356 Elim1Store]: treesize reduction 2188, result has 25.5 percent of original size [2022-11-03 03:44:49,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 61 select indices, 61 select index equivalence classes, 1715 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 174 case distinctions, treesize of input 319 treesize of output 949 [2022-11-03 03:44:50,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 205 [2022-11-03 03:44:51,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:51,911 INFO L244 Elim1Store]: Index analysis took 419 ms [2022-11-03 03:44:52,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 22 select indices, 22 select index equivalence classes, 268 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 254 treesize of output 333 [2022-11-03 03:44:52,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:52,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:53,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 22 select indices, 22 select index equivalence classes, 238 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 290 [2022-11-03 03:44:53,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 481 treesize of output 384 [2022-11-03 03:44:53,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:53,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:53,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:53,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:53,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:54,944 INFO L244 Elim1Store]: Index analysis took 1192 ms [2022-11-03 03:44:57,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 22 select indices, 22 select index equivalence classes, 238 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 288 [2022-11-03 03:44:57,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:57,791 INFO L244 Elim1Store]: Index analysis took 342 ms [2022-11-03 03:44:58,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 22 select indices, 22 select index equivalence classes, 238 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 290 [2022-11-03 03:44:58,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:58,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,135 INFO L244 Elim1Store]: Index analysis took 140 ms [2022-11-03 03:44:59,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 53 select indices, 53 select index equivalence classes, 709 disjoint index pairs (out of 1378 index pairs), introduced 54 new quantified variables, introduced 0 case distinctions, treesize of input 511 treesize of output 685 [2022-11-03 03:44:59,245 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 481 treesize of output 384 [2022-11-03 03:44:59,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:59,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 58 select indices, 58 select index equivalence classes, 1772 disjoint index pairs (out of 1653 index pairs), introduced 58 new quantified variables, introduced 0 case distinctions, treesize of input 300 treesize of output 475 [2022-11-03 03:45:01,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 03:45:01,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 03:45:01,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-03 03:45:02,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:02,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:02,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 61 select indices, 61 select index equivalence classes, 1830 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 184 [2022-11-03 03:45:02,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:02,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:02,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:02,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:02,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:02,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:02,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:02,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:02,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 245 [2022-11-03 03:45:02,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34 [2022-11-03 03:45:03,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:03,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:03,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 60 select indices, 60 select index equivalence classes, 1772 disjoint index pairs (out of 1770 index pairs), introduced 60 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 181 [2022-11-03 03:45:05,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:05,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:05,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:05,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:05,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:05,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:05,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:05,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:05,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 245 [2022-11-03 03:45:05,594 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34 [2022-11-03 03:45:05,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:05,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:05,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 61 select indices, 61 select index equivalence classes, 1830 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 184 [2022-11-03 03:45:06,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:06,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:06,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 60 select indices, 60 select index equivalence classes, 1772 disjoint index pairs (out of 1770 index pairs), introduced 60 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 181 [2022-11-03 03:45:17,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:17,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:17,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:45:27,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:27,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:45:28,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:30,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:45:30,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:30,801 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:31,925 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:31,948 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:31,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:45:33,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:45:33,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:33,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:34,983 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:45:35,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:35,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:36,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:36,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:45:37,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:38,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:38,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:38,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:45:40,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:45:40,794 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:40,836 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:42,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:42,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:45:42,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:45:56,109 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 113 for LOIs [2022-11-03 03:45:56,124 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 1210 for LOIs [2022-11-03 03:46:03,065 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 03:46:04,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 03:46:04,345 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-03 03:53:48,016 WARN L234 SmtUtils]: Spent 7.69m on a formula simplification. DAG size of input: 1142 DAG size of output: 544 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 03:53:48,017 INFO L356 Elim1Store]: treesize reduction 1552, result has 39.7 percent of original size [2022-11-03 03:53:48,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 62 select indices, 62 select index equivalence classes, 1712 disjoint index pairs (out of 1891 index pairs), introduced 63 new quantified variables, introduced 239 case distinctions, treesize of input 2661 treesize of output 3565 [2022-11-03 03:53:49,712 INFO L244 Elim1Store]: Index analysis took 1111 ms