./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.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_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/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_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/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_d7dcd908-6275-4428-b201-b65b884e95e6/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 1848e360a16ec6531e7d7aea690ab68ac7295c6b0bdec191a41fa9ee0518b66d --- 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 02:23:37,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:23:37,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:23:37,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:23:37,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:23:37,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:23:37,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:23:37,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:23:37,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:23:37,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:23:37,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:23:37,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:23:37,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:23:37,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:23:37,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:23:37,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:23:37,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:23:37,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:23:37,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:23:37,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:23:37,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:23:38,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:23:38,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:23:38,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:23:38,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:23:38,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:23:38,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:23:38,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:23:38,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:23:38,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:23:38,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:23:38,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:23:38,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:23:38,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:23:38,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:23:38,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:23:38,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:23:38,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:23:38,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:23:38,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:23:38,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:23:38,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:23:38,094 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:23:38,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:23:38,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:23:38,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:23:38,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:23:38,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:23:38,097 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:23:38,098 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:23:38,098 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:23:38,098 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:23:38,100 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:23:38,100 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:23:38,100 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:23:38,100 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:23:38,101 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:23:38,101 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:23:38,101 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:23:38,102 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:23:38,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:23:38,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:23:38,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:23:38,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:23:38,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:23:38,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:23:38,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:23:38,107 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:23:38,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:23:38,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:23:38,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:23:38,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:23:38,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:23:38,109 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:23:38,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:23:38,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:23:38,109 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:23:38,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:23:38,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:23:38,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:23:38,110 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_d7dcd908-6275-4428-b201-b65b884e95e6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1848e360a16ec6531e7d7aea690ab68ac7295c6b0bdec191a41fa9ee0518b66d [2022-11-03 02:23:38,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:23:38,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:23:38,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:23:38,502 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:23:38,503 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:23:38,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-11-03 02:23:38,591 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/data/1c5600170/512edf098133441993557369b82ef000/FLAGaa09e96cd [2022-11-03 02:23:39,608 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:23:39,610 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-11-03 02:23:39,690 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/data/1c5600170/512edf098133441993557369b82ef000/FLAGaa09e96cd [2022-11-03 02:23:40,007 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/data/1c5600170/512edf098133441993557369b82ef000 [2022-11-03 02:23:40,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:23:40,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:23:40,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:23:40,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:23:40,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:23:40,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:23:40" (1/1) ... [2022-11-03 02:23:40,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e42bd1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:40, skipping insertion in model container [2022-11-03 02:23:40,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:23:40" (1/1) ... [2022-11-03 02:23:40,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:23:40,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:23:41,462 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_d7dcd908-6275-4428-b201-b65b884e95e6/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2022-11-03 02:23:42,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:23:42,434 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:23:42,717 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_d7dcd908-6275-4428-b201-b65b884e95e6/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2022-11-03 02:23:42,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:23:43,041 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:23:43,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:43 WrapperNode [2022-11-03 02:23:43,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:23:43,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:23:43,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:23:43,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:23:43,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:43" (1/1) ... [2022-11-03 02:23:43,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:43" (1/1) ... [2022-11-03 02:23:43,374 INFO L138 Inliner]: procedures = 201, calls = 1494, calls flagged for inlining = 91, calls inlined = 86, statements flattened = 2595 [2022-11-03 02:23:43,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:23:43,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:23:43,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:23:43,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:23:43,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:43" (1/1) ... [2022-11-03 02:23:43,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:43" (1/1) ... [2022-11-03 02:23:43,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:43" (1/1) ... [2022-11-03 02:23:43,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:43" (1/1) ... [2022-11-03 02:23:43,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:43" (1/1) ... [2022-11-03 02:23:43,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:43" (1/1) ... [2022-11-03 02:23:43,646 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:43" (1/1) ... [2022-11-03 02:23:43,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:43" (1/1) ... [2022-11-03 02:23:43,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:23:43,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:23:43,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:23:43,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:23:43,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:43" (1/1) ... [2022-11-03 02:23:43,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:23:43,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:43,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:23:43,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:23:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-03 02:23:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-03 02:23:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2022-11-03 02:23:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2022-11-03 02:23:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2022-11-03 02:23:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2022-11-03 02:23:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:23:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:23:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:23:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:23:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2022-11-03 02:23:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2022-11-03 02:23:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-03 02:23:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-03 02:23:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-03 02:23:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-03 02:23:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-11-03 02:23:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-11-03 02:23:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:23:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:23:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_sec_feed [2022-11-03 02:23:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_sec_feed [2022-11-03 02:23:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-03 02:23:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-03 02:23:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-03 02:23:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-03 02:23:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2022-11-03 02:23:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2022-11-03 02:23:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:23:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:23:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:23:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:23:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:23:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:23:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:23:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:23:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-11-03 02:23:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-11-03 02:23:43,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-03 02:23:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-03 02:23:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:23:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:23:43,832 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb [2022-11-03 02:23:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb [2022-11-03 02:23:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:23:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-11-03 02:23:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-11-03 02:23:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:23:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:23:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:23:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:23:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:23:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_feed [2022-11-03 02:23:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_feed [2022-11-03 02:23:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:23:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:23:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2022-11-03 02:23:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2022-11-03 02:23:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 02:23:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 02:23:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 02:23:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 02:23:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_ts_feed [2022-11-03 02:23:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_ts_feed [2022-11-03 02:23:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:23:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:23:43,838 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:23:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:23:43,838 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 02:23:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 02:23:43,838 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2022-11-03 02:23:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2022-11-03 02:23:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:23:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:23:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2022-11-03 02:23:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2022-11-03 02:23:43,840 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-03 02:23:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-03 02:23:43,840 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-11-03 02:23:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-11-03 02:23:43,840 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2022-11-03 02:23:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2022-11-03 02:23:43,841 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2022-11-03 02:23:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2022-11-03 02:23:43,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:23:43,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:23:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:23:43,842 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:23:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:23:43,842 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:23:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:23:43,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:23:43,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2022-11-03 02:23:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2022-11-03 02:23:43,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2022-11-03 02:23:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2022-11-03 02:23:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-11-03 02:23:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-11-03 02:23:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-11-03 02:23:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-11-03 02:23:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-11-03 02:23:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-11-03 02:23:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-03 02:23:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-03 02:23:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:23:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:23:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:23:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 02:23:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 02:23:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-03 02:23:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-03 02:23:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:23:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:23:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 02:23:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 02:23:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2022-11-03 02:23:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2022-11-03 02:23:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:23:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2022-11-03 02:23:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2022-11-03 02:23:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-11-03 02:23:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-11-03 02:23:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:23:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:23:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2022-11-03 02:23:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2022-11-03 02:23:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2022-11-03 02:23:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2022-11-03 02:23:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:23:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:23:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:23:43,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:23:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:23:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:23:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:23:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:23:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:23:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_init_rc [2022-11-03 02:23:43,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_init_rc [2022-11-03 02:23:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-11-03 02:23:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-11-03 02:23:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:23:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:23:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2022-11-03 02:23:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2022-11-03 02:23:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_handle_irq [2022-11-03 02:23:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_handle_irq [2022-11-03 02:23:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-03 02:23:43,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-03 02:23:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:23:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:23:43,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:23:44,919 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:23:44,938 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:23:45,374 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:23:51,747 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-03 02:23:52,391 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:23:53,632 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:23:53,632 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:23:53,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:23:53 BoogieIcfgContainer [2022-11-03 02:23:53,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:23:53,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:23:53,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:23:53,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:23:53,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:23:40" (1/3) ... [2022-11-03 02:23:53,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772c06ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:23:53, skipping insertion in model container [2022-11-03 02:23:53,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:23:43" (2/3) ... [2022-11-03 02:23:53,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772c06ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:23:53, skipping insertion in model container [2022-11-03 02:23:53,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:23:53" (3/3) ... [2022-11-03 02:23:53,650 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-11-03 02:23:53,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:23:53,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:23:53,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:23:53,801 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;@252f8092, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:23:53,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:23:53,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 776 states, 477 states have (on average 1.3375262054507338) internal successors, (638), 504 states have internal predecessors, (638), 231 states have call successors, (231), 68 states have call predecessors, (231), 66 states have return successors, (225), 217 states have call predecessors, (225), 225 states have call successors, (225) [2022-11-03 02:23:53,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-03 02:23:53,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:53,828 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 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 02:23:53,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:53,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:53,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1297752314, now seen corresponding path program 1 times [2022-11-03 02:23:53,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:53,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882885014] [2022-11-03 02:23:53,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:53,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:54,690 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 02:23:54,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:54,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882885014] [2022-11-03 02:23:54,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882885014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:54,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:54,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:23:54,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711452939] [2022-11-03 02:23:54,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:54,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:23:54,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:54,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:23:54,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:23:54,754 INFO L87 Difference]: Start difference. First operand has 776 states, 477 states have (on average 1.3375262054507338) internal successors, (638), 504 states have internal predecessors, (638), 231 states have call successors, (231), 68 states have call predecessors, (231), 66 states have return successors, (225), 217 states have call predecessors, (225), 225 states have call successors, (225) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-03 02:23:57,671 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 02:24:00,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:00,157 INFO L93 Difference]: Finished difference Result 2245 states and 3159 transitions. [2022-11-03 02:24:00,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:00,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2022-11-03 02:24:00,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:00,194 INFO L225 Difference]: With dead ends: 2245 [2022-11-03 02:24:00,195 INFO L226 Difference]: Without dead ends: 1462 [2022-11-03 02:24:00,205 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 02:24:00,209 INFO L413 NwaCegarLoop]: 1142 mSDtfsCounter, 982 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:00,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 2065 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 324 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 02:24:00,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2022-11-03 02:24:00,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1461. [2022-11-03 02:24:00,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 907 states have (on average 1.3197353914002206) internal successors, (1197), 941 states have internal predecessors, (1197), 424 states have call successors, (424), 130 states have call predecessors, (424), 129 states have return successors, (419), 403 states have call predecessors, (419), 419 states have call successors, (419) [2022-11-03 02:24:00,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2040 transitions. [2022-11-03 02:24:00,425 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2040 transitions. Word has length 46 [2022-11-03 02:24:00,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:00,426 INFO L495 AbstractCegarLoop]: Abstraction has 1461 states and 2040 transitions. [2022-11-03 02:24:00,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-03 02:24:00,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2040 transitions. [2022-11-03 02:24:00,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-03 02:24:00,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:00,439 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:00,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:24:00,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:00,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:00,441 INFO L85 PathProgramCache]: Analyzing trace with hash 604212558, now seen corresponding path program 1 times [2022-11-03 02:24:00,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:00,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425420682] [2022-11-03 02:24:00,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:00,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:01,262 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 02:24:01,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:01,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425420682] [2022-11-03 02:24:01,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425420682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:01,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:01,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:24:01,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831243851] [2022-11-03 02:24:01,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:01,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:01,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:01,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:01,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:24:01,268 INFO L87 Difference]: Start difference. First operand 1461 states and 2040 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:24:03,778 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 02:24:06,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:06,683 INFO L93 Difference]: Finished difference Result 2842 states and 4021 transitions. [2022-11-03 02:24:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:06,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 54 [2022-11-03 02:24:06,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:06,718 INFO L225 Difference]: With dead ends: 2842 [2022-11-03 02:24:06,719 INFO L226 Difference]: Without dead ends: 2839 [2022-11-03 02:24:06,722 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 02:24:06,724 INFO L413 NwaCegarLoop]: 1125 mSDtfsCounter, 964 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:06,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 2050 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 02:24:06,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2022-11-03 02:24:06,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2824. [2022-11-03 02:24:06,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2824 states, 1755 states have (on average 1.3207977207977208) internal successors, (2318), 1823 states have internal predecessors, (2318), 814 states have call successors, (814), 257 states have call predecessors, (814), 254 states have return successors, (867), 771 states have call predecessors, (867), 809 states have call successors, (867) [2022-11-03 02:24:06,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2824 states to 2824 states and 3999 transitions. [2022-11-03 02:24:06,960 INFO L78 Accepts]: Start accepts. Automaton has 2824 states and 3999 transitions. Word has length 54 [2022-11-03 02:24:06,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:06,961 INFO L495 AbstractCegarLoop]: Abstraction has 2824 states and 3999 transitions. [2022-11-03 02:24:06,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:24:06,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2824 states and 3999 transitions. [2022-11-03 02:24:06,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-03 02:24:06,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:06,971 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:06,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:24:06,971 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:06,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:06,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1550237556, now seen corresponding path program 1 times [2022-11-03 02:24:06,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:06,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986648112] [2022-11-03 02:24:06,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:06,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:07,641 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 02:24:07,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:07,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986648112] [2022-11-03 02:24:07,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986648112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:07,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:07,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:24:07,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961293162] [2022-11-03 02:24:07,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:07,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:07,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:07,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:07,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:24:07,649 INFO L87 Difference]: Start difference. First operand 2824 states and 3999 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:24:09,904 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 02:24:13,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:13,067 INFO L93 Difference]: Finished difference Result 3487 states and 4917 transitions. [2022-11-03 02:24:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:13,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 55 [2022-11-03 02:24:13,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:13,103 INFO L225 Difference]: With dead ends: 3487 [2022-11-03 02:24:13,104 INFO L226 Difference]: Without dead ends: 3484 [2022-11-03 02:24:13,107 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 02:24:13,111 INFO L413 NwaCegarLoop]: 1114 mSDtfsCounter, 985 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:13,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 1939 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 02:24:13,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2022-11-03 02:24:13,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 3483. [2022-11-03 02:24:13,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3483 states, 2157 states have (on average 1.3180343069077423) internal successors, (2843), 2239 states have internal predecessors, (2843), 1008 states have call successors, (1008), 320 states have call predecessors, (1008), 317 states have return successors, (1062), 958 states have call predecessors, (1062), 1004 states have call successors, (1062) [2022-11-03 02:24:13,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3483 states to 3483 states and 4913 transitions. [2022-11-03 02:24:13,361 INFO L78 Accepts]: Start accepts. Automaton has 3483 states and 4913 transitions. Word has length 55 [2022-11-03 02:24:13,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:13,361 INFO L495 AbstractCegarLoop]: Abstraction has 3483 states and 4913 transitions. [2022-11-03 02:24:13,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:24:13,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3483 states and 4913 transitions. [2022-11-03 02:24:13,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-03 02:24:13,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:13,363 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:13,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:24:13,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:13,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:13,364 INFO L85 PathProgramCache]: Analyzing trace with hash 812246289, now seen corresponding path program 1 times [2022-11-03 02:24:13,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:13,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517226382] [2022-11-03 02:24:13,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:13,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 02:24:13,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:13,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517226382] [2022-11-03 02:24:13,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517226382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:13,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:13,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:24:13,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544511803] [2022-11-03 02:24:13,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:13,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:13,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:13,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:13,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:24:13,567 INFO L87 Difference]: Start difference. First operand 3483 states and 4913 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:24:15,884 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 02:24:18,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:18,438 INFO L93 Difference]: Finished difference Result 3486 states and 4915 transitions. [2022-11-03 02:24:18,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:18,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 56 [2022-11-03 02:24:18,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:18,470 INFO L225 Difference]: With dead ends: 3486 [2022-11-03 02:24:18,470 INFO L226 Difference]: Without dead ends: 3483 [2022-11-03 02:24:18,473 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 02:24:18,474 INFO L413 NwaCegarLoop]: 1112 mSDtfsCounter, 982 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:18,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 1937 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-03 02:24:18,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2022-11-03 02:24:18,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3482. [2022-11-03 02:24:18,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3482 states, 2157 states have (on average 1.3175707000463608) internal successors, (2842), 2238 states have internal predecessors, (2842), 1007 states have call successors, (1007), 320 states have call predecessors, (1007), 317 states have return successors, (1062), 958 states have call predecessors, (1062), 1004 states have call successors, (1062) [2022-11-03 02:24:18,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3482 states to 3482 states and 4911 transitions. [2022-11-03 02:24:18,705 INFO L78 Accepts]: Start accepts. Automaton has 3482 states and 4911 transitions. Word has length 56 [2022-11-03 02:24:18,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:18,705 INFO L495 AbstractCegarLoop]: Abstraction has 3482 states and 4911 transitions. [2022-11-03 02:24:18,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:24:18,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3482 states and 4911 transitions. [2022-11-03 02:24:18,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-03 02:24:18,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:18,709 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:18,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:24:18,709 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:18,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:18,710 INFO L85 PathProgramCache]: Analyzing trace with hash -590641641, now seen corresponding path program 1 times [2022-11-03 02:24:18,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:18,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249574842] [2022-11-03 02:24:18,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:18,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:18,967 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 02:24:18,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:18,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249574842] [2022-11-03 02:24:18,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249574842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:18,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:18,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:24:18,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836505735] [2022-11-03 02:24:18,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:18,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:18,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:18,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:18,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:24:18,975 INFO L87 Difference]: Start difference. First operand 3482 states and 4911 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:24:21,385 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 02:24:24,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:24,659 INFO L93 Difference]: Finished difference Result 3485 states and 4913 transitions. [2022-11-03 02:24:24,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:24,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 57 [2022-11-03 02:24:24,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:24,690 INFO L225 Difference]: With dead ends: 3485 [2022-11-03 02:24:24,690 INFO L226 Difference]: Without dead ends: 3482 [2022-11-03 02:24:24,694 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 02:24:24,697 INFO L413 NwaCegarLoop]: 1110 mSDtfsCounter, 979 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:24,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 1935 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-03 02:24:24,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2022-11-03 02:24:24,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3481. [2022-11-03 02:24:24,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3481 states, 2157 states have (on average 1.317107093184979) internal successors, (2841), 2237 states have internal predecessors, (2841), 1006 states have call successors, (1006), 320 states have call predecessors, (1006), 317 states have return successors, (1062), 958 states have call predecessors, (1062), 1004 states have call successors, (1062) [2022-11-03 02:24:24,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3481 states to 3481 states and 4909 transitions. [2022-11-03 02:24:24,954 INFO L78 Accepts]: Start accepts. Automaton has 3481 states and 4909 transitions. Word has length 57 [2022-11-03 02:24:24,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:24,956 INFO L495 AbstractCegarLoop]: Abstraction has 3481 states and 4909 transitions. [2022-11-03 02:24:24,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:24:24,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3481 states and 4909 transitions. [2022-11-03 02:24:24,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-03 02:24:24,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:24,958 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:24,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:24:24,958 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:24,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:24,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1130489644, now seen corresponding path program 1 times [2022-11-03 02:24:24,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:24,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236940448] [2022-11-03 02:24:24,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:24,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:25,161 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 02:24:25,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:25,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236940448] [2022-11-03 02:24:25,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236940448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:25,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:25,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:24:25,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717683797] [2022-11-03 02:24:25,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:25,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:25,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:25,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:25,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:24:25,164 INFO L87 Difference]: Start difference. First operand 3481 states and 4909 transitions. 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, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:24:27,617 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 02:24:30,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:30,237 INFO L93 Difference]: Finished difference Result 3484 states and 4911 transitions. [2022-11-03 02:24:30,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:30,242 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, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 58 [2022-11-03 02:24:30,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:30,264 INFO L225 Difference]: With dead ends: 3484 [2022-11-03 02:24:30,264 INFO L226 Difference]: Without dead ends: 3475 [2022-11-03 02:24:30,268 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 02:24:30,269 INFO L413 NwaCegarLoop]: 1109 mSDtfsCounter, 976 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:30,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 1934 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 02:24:30,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3475 states. [2022-11-03 02:24:30,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3475 to 3474. [2022-11-03 02:24:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3474 states, 2151 states have (on average 1.3165969316596933) internal successors, (2832), 2230 states have internal predecessors, (2832), 1005 states have call successors, (1005), 320 states have call predecessors, (1005), 317 states have return successors, (1062), 958 states have call predecessors, (1062), 1004 states have call successors, (1062) [2022-11-03 02:24:30,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 4899 transitions. [2022-11-03 02:24:30,530 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 4899 transitions. Word has length 58 [2022-11-03 02:24:30,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:30,531 INFO L495 AbstractCegarLoop]: Abstraction has 3474 states and 4899 transitions. [2022-11-03 02:24:30,532 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, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:24:30,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 4899 transitions. [2022-11-03 02:24:30,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-03 02:24:30,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:30,542 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:30,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:24:30,542 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:30,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:30,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1980163793, now seen corresponding path program 1 times [2022-11-03 02:24:30,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:30,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469454190] [2022-11-03 02:24:30,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:30,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-03 02:24:30,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:30,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469454190] [2022-11-03 02:24:30,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469454190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:30,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:30,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:24:30,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698231871] [2022-11-03 02:24:30,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:30,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:30,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:30,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:30,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:24:30,862 INFO L87 Difference]: Start difference. First operand 3474 states and 4899 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:24:33,414 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 02:24:35,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:35,135 INFO L93 Difference]: Finished difference Result 5826 states and 8191 transitions. [2022-11-03 02:24:35,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:35,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 141 [2022-11-03 02:24:35,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:35,153 INFO L225 Difference]: With dead ends: 5826 [2022-11-03 02:24:35,153 INFO L226 Difference]: Without dead ends: 2371 [2022-11-03 02:24:35,172 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 02:24:35,173 INFO L413 NwaCegarLoop]: 920 mSDtfsCounter, 142 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:35,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1798 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 315 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-03 02:24:35,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2022-11-03 02:24:35,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2366. [2022-11-03 02:24:35,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 1482 states have (on average 1.3232118758434548) internal successors, (1961), 1529 states have internal predecessors, (1961), 661 states have call successors, (661), 224 states have call predecessors, (661), 222 states have return successors, (689), 633 states have call predecessors, (689), 660 states have call successors, (689) [2022-11-03 02:24:35,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 3311 transitions. [2022-11-03 02:24:35,340 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 3311 transitions. Word has length 141 [2022-11-03 02:24:35,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:35,341 INFO L495 AbstractCegarLoop]: Abstraction has 2366 states and 3311 transitions. [2022-11-03 02:24:35,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:24:35,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 3311 transitions. [2022-11-03 02:24:35,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-03 02:24:35,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:35,347 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 3, 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] [2022-11-03 02:24:35,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:24:35,348 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:35,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:35,349 INFO L85 PathProgramCache]: Analyzing trace with hash -527409904, now seen corresponding path program 1 times [2022-11-03 02:24:35,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:35,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282258013] [2022-11-03 02:24:35,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:35,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:35,748 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-03 02:24:35,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:35,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282258013] [2022-11-03 02:24:35,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282258013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:35,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:24:35,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:24:35,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654963632] [2022-11-03 02:24:35,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:35,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:24:35,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:35,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:24:35,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:24:35,752 INFO L87 Difference]: Start difference. First operand 2366 states and 3311 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 02:24:38,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:24:43,575 WARN L539 Checker$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 02:24:47,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:47,222 INFO L93 Difference]: Finished difference Result 5410 states and 7709 transitions. [2022-11-03 02:24:47,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:24:47,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 147 [2022-11-03 02:24:47,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:47,291 INFO L225 Difference]: With dead ends: 5410 [2022-11-03 02:24:47,296 INFO L226 Difference]: Without dead ends: 2486 [2022-11-03 02:24:47,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:24:47,317 INFO L413 NwaCegarLoop]: 1714 mSDtfsCounter, 1856 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1858 SdHoareTripleChecker+Valid, 2886 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:47,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1858 Valid, 2886 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1455 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2022-11-03 02:24:47,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2022-11-03 02:24:47,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2482. [2022-11-03 02:24:47,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2482 states, 1551 states have (on average 1.3165699548678271) internal successors, (2042), 1601 states have internal predecessors, (2042), 683 states have call successors, (683), 249 states have call predecessors, (683), 247 states have return successors, (720), 654 states have call predecessors, (720), 682 states have call successors, (720) [2022-11-03 02:24:47,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 3445 transitions. [2022-11-03 02:24:47,530 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 3445 transitions. Word has length 147 [2022-11-03 02:24:47,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:47,531 INFO L495 AbstractCegarLoop]: Abstraction has 2482 states and 3445 transitions. [2022-11-03 02:24:47,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 02:24:47,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 3445 transitions. [2022-11-03 02:24:47,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-03 02:24:47,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:47,539 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 3, 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] [2022-11-03 02:24:47,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:24:47,540 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:47,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:47,541 INFO L85 PathProgramCache]: Analyzing trace with hash -204220433, now seen corresponding path program 1 times [2022-11-03 02:24:47,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:47,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244515409] [2022-11-03 02:24:47,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:47,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:48,122 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-03 02:24:48,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:48,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244515409] [2022-11-03 02:24:48,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244515409] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:24:48,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900286993] [2022-11-03 02:24:48,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:48,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:24:48,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:24:48,126 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:24:48,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:24:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:49,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:24:49,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:49,229 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-03 02:24:49,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:49,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900286993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:49,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:24:49,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-03 02:24:49,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470847292] [2022-11-03 02:24:49,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:49,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:49,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:49,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:49,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:24:49,233 INFO L87 Difference]: Start difference. First operand 2482 states and 3445 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:24:51,737 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 02:24:53,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:24:53,913 INFO L93 Difference]: Finished difference Result 4866 states and 6889 transitions. [2022-11-03 02:24:53,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:24:53,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 170 [2022-11-03 02:24:53,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:24:53,931 INFO L225 Difference]: With dead ends: 4866 [2022-11-03 02:24:53,932 INFO L226 Difference]: Without dead ends: 2490 [2022-11-03 02:24:53,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:24:53,945 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 2 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:24:53,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1728 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-03 02:24:53,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2022-11-03 02:24:54,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2486. [2022-11-03 02:24:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 1555 states have (on average 1.3157556270096462) internal successors, (2046), 1605 states have internal predecessors, (2046), 683 states have call successors, (683), 249 states have call predecessors, (683), 247 states have return successors, (720), 654 states have call predecessors, (720), 682 states have call successors, (720) [2022-11-03 02:24:54,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 3449 transitions. [2022-11-03 02:24:54,106 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 3449 transitions. Word has length 170 [2022-11-03 02:24:54,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:24:54,107 INFO L495 AbstractCegarLoop]: Abstraction has 2486 states and 3449 transitions. [2022-11-03 02:24:54,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:24:54,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 3449 transitions. [2022-11-03 02:24:54,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-03 02:24:54,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:24:54,115 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 3, 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] [2022-11-03 02:24:54,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:24:54,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:24:54,343 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:24:54,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:24:54,343 INFO L85 PathProgramCache]: Analyzing trace with hash -704662998, now seen corresponding path program 1 times [2022-11-03 02:24:54,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:24:54,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511649164] [2022-11-03 02:24:54,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:54,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:24:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:54,912 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-03 02:24:54,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:54,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511649164] [2022-11-03 02:24:54,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511649164] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:24:54,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881846781] [2022-11-03 02:24:54,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:24:54,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:24:54,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:24:54,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:24:54,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:24:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:24:56,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 2658 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:24:56,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:24:56,077 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-03 02:24:56,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:24:56,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881846781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:24:56,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:24:56,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-03 02:24:56,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4348396] [2022-11-03 02:24:56,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:24:56,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:24:56,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:56,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:24:56,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:24:56,083 INFO L87 Difference]: Start difference. First operand 2486 states and 3449 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:24:58,806 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 02:25:00,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:00,335 INFO L93 Difference]: Finished difference Result 4870 states and 6889 transitions. [2022-11-03 02:25:00,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:25:00,337 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), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 172 [2022-11-03 02:25:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:00,355 INFO L225 Difference]: With dead ends: 4870 [2022-11-03 02:25:00,355 INFO L226 Difference]: Without dead ends: 2490 [2022-11-03 02:25:00,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:25:00,412 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 0 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:00,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1729 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-03 02:25:00,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2022-11-03 02:25:00,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2490. [2022-11-03 02:25:00,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 1559 states have (on average 1.3149454778704297) internal successors, (2050), 1609 states have internal predecessors, (2050), 683 states have call successors, (683), 249 states have call predecessors, (683), 247 states have return successors, (720), 654 states have call predecessors, (720), 682 states have call successors, (720) [2022-11-03 02:25:00,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 3453 transitions. [2022-11-03 02:25:00,592 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 3453 transitions. Word has length 172 [2022-11-03 02:25:00,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:00,593 INFO L495 AbstractCegarLoop]: Abstraction has 2490 states and 3453 transitions. [2022-11-03 02:25:00,593 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), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:25:00,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 3453 transitions. [2022-11-03 02:25:00,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-03 02:25:00,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:00,600 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 3, 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] [2022-11-03 02:25:00,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:00,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 02:25:00,819 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:00,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:00,819 INFO L85 PathProgramCache]: Analyzing trace with hash 652530784, now seen corresponding path program 1 times [2022-11-03 02:25:00,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:00,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402829795] [2022-11-03 02:25:00,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:00,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:01,350 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-03 02:25:01,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:01,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402829795] [2022-11-03 02:25:01,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402829795] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:25:01,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480358634] [2022-11-03 02:25:01,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:01,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:25:01,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:25:01,353 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:25:01,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:25:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:02,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 2685 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:25:02,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:02,667 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-03 02:25:02,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:02,954 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-03 02:25:02,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480358634] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:02,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [516246379] [2022-11-03 02:25:02,985 INFO L159 IcfgInterpreter]: Started Sifa with 123 locations of interest [2022-11-03 02:25:02,985 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:25:02,990 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:25:02,997 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:25:02,997 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:25:06,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:25:06,340 INFO L244 Elim1Store]: Index analysis took 495 ms [2022-11-03 02:25:24,365 WARN L234 SmtUtils]: Spent 17.97s on a formula simplification. DAG size of input: 1354 DAG size of output: 903 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 02:25:24,371 INFO L356 Elim1Store]: treesize reduction 1500, result has 47.4 percent of original size [2022-11-03 02:25:24,375 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 151 select indices, 151 select index equivalence classes, 11327 disjoint index pairs (out of 11325 index pairs), introduced 151 new quantified variables, introduced 150 case distinctions, treesize of input 762 treesize of output 1814 [2022-11-03 02:25:27,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:25:27,953 INFO L244 Elim1Store]: Index analysis took 966 ms [2022-11-03 02:25:56,814 WARN L234 SmtUtils]: Spent 28.80s on a formula simplification. DAG size of input: 1655 DAG size of output: 903 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 02:25:56,818 INFO L356 Elim1Store]: treesize reduction 2700, result has 33.3 percent of original size [2022-11-03 02:25:56,822 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 153 select indices, 153 select index equivalence classes, 11478 disjoint index pairs (out of 11628 index pairs), introduced 153 new quantified variables, introduced 300 case distinctions, treesize of input 772 treesize of output 1825 [2022-11-03 02:26:06,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:07,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 153 select indices, 153 select index equivalence classes, 11628 disjoint index pairs (out of 11628 index pairs), introduced 153 new quantified variables, introduced 0 case distinctions, treesize of input 766 treesize of output 460 [2022-11-03 02:26:07,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:07,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 152 select indices, 152 select index equivalence classes, 11477 disjoint index pairs (out of 11476 index pairs), introduced 152 new quantified variables, introduced 0 case distinctions, treesize of input 761 treesize of output 457 [2022-11-03 02:26:08,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:08,388 INFO L244 Elim1Store]: Index analysis took 212 ms [2022-11-03 02:26:08,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 2175 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1556 treesize of output 596 [2022-11-03 02:26:15,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:15,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 153 select indices, 153 select index equivalence classes, 11628 disjoint index pairs (out of 11628 index pairs), introduced 153 new quantified variables, introduced 0 case distinctions, treesize of input 766 treesize of output 460 [2022-11-03 02:26:16,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:16,555 INFO L244 Elim1Store]: Index analysis took 219 ms [2022-11-03 02:26:16,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 2175 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1556 treesize of output 596 [2022-11-03 02:26:17,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:26:17,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 152 select indices, 152 select index equivalence classes, 11477 disjoint index pairs (out of 11476 index pairs), introduced 152 new quantified variables, introduced 0 case distinctions, treesize of input 761 treesize of output 457 [2022-11-03 02:26:37,727 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 120 for LOIs [2022-11-03 02:26:37,779 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 764 for LOIs [2022-11-03 02:26:38,216 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:27:31,368 WARN L234 SmtUtils]: Spent 52.98s on a formula simplification. DAG size of input: 1904 DAG size of output: 1602 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:27:46,455 WARN L234 SmtUtils]: Spent 13.97s on a formula simplification. DAG size of input: 757 DAG size of output: 754 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:28:00,940 WARN L234 SmtUtils]: Spent 14.21s on a formula simplification. DAG size of input: 761 DAG size of output: 758 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:28:15,764 WARN L234 SmtUtils]: Spent 14.47s on a formula simplification. DAG size of input: 769 DAG size of output: 764 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:28:31,087 WARN L234 SmtUtils]: Spent 14.97s on a formula simplification. DAG size of input: 781 DAG size of output: 776 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:28:46,741 WARN L234 SmtUtils]: Spent 15.30s on a formula simplification. DAG size of input: 792 DAG size of output: 781 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:29:02,115 WARN L234 SmtUtils]: Spent 14.95s on a formula simplification. DAG size of input: 796 DAG size of output: 785 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:29:17,164 WARN L234 SmtUtils]: Spent 14.62s on a formula simplification. DAG size of input: 804 DAG size of output: 791 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:29:32,034 WARN L234 SmtUtils]: Spent 14.40s on a formula simplification. DAG size of input: 808 DAG size of output: 795 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:29:46,504 WARN L234 SmtUtils]: Spent 14.07s on a formula simplification. DAG size of input: 816 DAG size of output: 800 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:30:00,702 WARN L234 SmtUtils]: Spent 13.76s on a formula simplification. DAG size of input: 820 DAG size of output: 804 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:30:11,953 WARN L234 SmtUtils]: Spent 10.91s on a formula simplification. DAG size of input: 764 DAG size of output: 761 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:30:23,151 WARN L234 SmtUtils]: Spent 10.81s on a formula simplification. DAG size of input: 766 DAG size of output: 763 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:30:23,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [516246379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:30:23,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:30:23,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [4, 4, 4] total 23 [2022-11-03 02:30:23,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803042255] [2022-11-03 02:30:23,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:30:23,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-03 02:30:23,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:30:23,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-03 02:30:23,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:30:23,176 INFO L87 Difference]: Start difference. First operand 2490 states and 3453 transitions. Second operand has 18 states, 12 states have (on average 6.916666666666667) internal successors, (83), 10 states have internal predecessors, (83), 7 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) [2022-11-03 02:30:41,085 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 02:31:11,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:31:11,470 INFO L93 Difference]: Finished difference Result 5000 states and 6950 transitions. [2022-11-03 02:31:11,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-03 02:31:11,472 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 12 states have (on average 6.916666666666667) internal successors, (83), 10 states have internal predecessors, (83), 7 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) Word has length 173 [2022-11-03 02:31:11,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:31:11,485 INFO L225 Difference]: With dead ends: 5000 [2022-11-03 02:31:11,485 INFO L226 Difference]: Without dead ends: 2530 [2022-11-03 02:31:11,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 498 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 225.0s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:31:11,495 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 19 mSDsluCounter, 7792 mSDsCounter, 0 mSdLazyCounter, 3422 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 7955 SdHoareTripleChecker+Invalid, 3441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3422 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:31:11,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 7955 Invalid, 3441 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 3422 Invalid, 1 Unknown, 0 Unchecked, 47.9s Time] [2022-11-03 02:31:11,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2022-11-03 02:31:11,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2510. [2022-11-03 02:31:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2510 states, 1571 states have (on average 1.3131763208147678) internal successors, (2063), 1621 states have internal predecessors, (2063), 689 states have call successors, (689), 251 states have call predecessors, (689), 249 states have return successors, (731), 660 states have call predecessors, (731), 688 states have call successors, (731) [2022-11-03 02:31:11,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2510 states to 2510 states and 3483 transitions. [2022-11-03 02:31:11,726 INFO L78 Accepts]: Start accepts. Automaton has 2510 states and 3483 transitions. Word has length 173 [2022-11-03 02:31:11,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:31:11,726 INFO L495 AbstractCegarLoop]: Abstraction has 2510 states and 3483 transitions. [2022-11-03 02:31:11,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 12 states have (on average 6.916666666666667) internal successors, (83), 10 states have internal predecessors, (83), 7 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) [2022-11-03 02:31:11,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2510 states and 3483 transitions. [2022-11-03 02:31:11,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-03 02:31:11,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:31:11,734 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 3, 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] [2022-11-03 02:31:11,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-03 02:31:11,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 02:31:11,951 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:31:11,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:31:11,951 INFO L85 PathProgramCache]: Analyzing trace with hash -799177563, now seen corresponding path program 1 times [2022-11-03 02:31:11,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:31:11,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000144731] [2022-11-03 02:31:11,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:11,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:31:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-03 02:31:12,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:31:12,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000144731] [2022-11-03 02:31:12,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000144731] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:31:12,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152343974] [2022-11-03 02:31:12,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:31:12,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:31:12,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:31:12,435 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:31:12,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7dcd908-6275-4428-b201-b65b884e95e6/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:31:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:31:13,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 2700 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:31:13,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:31:13,357 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-03 02:31:13,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:31:13,631 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-03 02:31:13,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152343974] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:31:13,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [262293817] [2022-11-03 02:31:13,643 INFO L159 IcfgInterpreter]: Started Sifa with 123 locations of interest [2022-11-03 02:31:13,643 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:31:13,644 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:31:13,644 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:31:13,645 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:31:15,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:31:15,357 INFO L244 Elim1Store]: Index analysis took 280 ms [2022-11-03 02:31:30,464 WARN L234 SmtUtils]: Spent 15.08s on a formula simplification. DAG size of input: 1354 DAG size of output: 903 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 02:31:30,467 INFO L356 Elim1Store]: treesize reduction 1500, result has 47.4 percent of original size [2022-11-03 02:31:30,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 151 select indices, 151 select index equivalence classes, 11327 disjoint index pairs (out of 11325 index pairs), introduced 151 new quantified variables, introduced 150 case distinctions, treesize of input 762 treesize of output 1814 [2022-11-03 02:31:32,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:31:32,604 INFO L244 Elim1Store]: Index analysis took 625 ms [2022-11-03 02:31:56,186 WARN L234 SmtUtils]: Spent 23.55s on a formula simplification. DAG size of input: 1655 DAG size of output: 903 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 02:31:56,188 INFO L356 Elim1Store]: treesize reduction 2700, result has 33.3 percent of original size [2022-11-03 02:31:56,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 153 select indices, 153 select index equivalence classes, 11478 disjoint index pairs (out of 11628 index pairs), introduced 153 new quantified variables, introduced 300 case distinctions, treesize of input 772 treesize of output 1825 [2022-11-03 02:32:05,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:05,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 153 select indices, 153 select index equivalence classes, 11628 disjoint index pairs (out of 11628 index pairs), introduced 153 new quantified variables, introduced 0 case distinctions, treesize of input 766 treesize of output 460 [2022-11-03 02:32:05,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:05,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 152 select indices, 152 select index equivalence classes, 11477 disjoint index pairs (out of 11476 index pairs), introduced 152 new quantified variables, introduced 0 case distinctions, treesize of input 761 treesize of output 457 [2022-11-03 02:32:06,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:06,236 INFO L244 Elim1Store]: Index analysis took 143 ms [2022-11-03 02:32:06,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 2175 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1556 treesize of output 596 [2022-11-03 02:32:12,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:12,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 152 select indices, 152 select index equivalence classes, 11477 disjoint index pairs (out of 11476 index pairs), introduced 152 new quantified variables, introduced 0 case distinctions, treesize of input 761 treesize of output 457 [2022-11-03 02:32:12,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 153 select indices, 153 select index equivalence classes, 11628 disjoint index pairs (out of 11628 index pairs), introduced 153 new quantified variables, introduced 0 case distinctions, treesize of input 766 treesize of output 460 [2022-11-03 02:32:13,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:13,645 INFO L244 Elim1Store]: Index analysis took 152 ms [2022-11-03 02:32:13,672 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 2175 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1556 treesize of output 596 [2022-11-03 02:32:23,836 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 16 treesize of output 12 [2022-11-03 02:32:23,841 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 14 treesize of output 10 [2022-11-03 02:32:23,848 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 14 treesize of output 10 [2022-11-03 02:32:23,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-03 02:32:23,886 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-03 02:32:23,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-03 02:32:23,919 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 16 treesize of output 12 [2022-11-03 02:32:23,925 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 14 treesize of output 10 [2022-11-03 02:32:23,937 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 14 treesize of output 10 [2022-11-03 02:32:24,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 32 select indices, 32 select index equivalence classes, 466 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 0 case distinctions, treesize of input 285 treesize of output 97 [2022-11-03 02:32:24,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:24,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 32 select indices, 32 select index equivalence classes, 466 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 0 case distinctions, treesize of input 285 treesize of output 97 [2022-11-03 02:32:25,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:25,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,014 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 32 select indices, 32 select index equivalence classes, 466 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 0 case distinctions, treesize of input 285 treesize of output 97 [2022-11-03 02:32:26,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:26,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 32 select indices, 32 select index equivalence classes, 466 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 0 case distinctions, treesize of input 285 treesize of output 97 [2022-11-03 02:32:48,110 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 230 for LOIs [2022-11-03 02:32:48,343 INFO L197 IcfgInterpreter]: Interpreting procedure ttusb_dec_probe with input of size 159 for LOIs [2022-11-03 02:32:48,735 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 127 for LOIs [2022-11-03 02:32:48,773 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 764 for LOIs [2022-11-03 02:32:56,482 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:33:48,424 WARN L234 SmtUtils]: Spent 51.78s on a formula simplification. DAG size of input: 1904 DAG size of output: 1602 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:34:06,635 WARN L234 SmtUtils]: Spent 13.56s on a formula simplification. DAG size of input: 757 DAG size of output: 754 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:34:21,232 WARN L234 SmtUtils]: Spent 14.32s on a formula simplification. DAG size of input: 761 DAG size of output: 758 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:34:35,140 WARN L234 SmtUtils]: Spent 13.63s on a formula simplification. DAG size of input: 769 DAG size of output: 764 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:34:50,652 WARN L234 SmtUtils]: Spent 15.20s on a formula simplification. DAG size of input: 781 DAG size of output: 776 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:35:06,250 WARN L234 SmtUtils]: Spent 15.22s on a formula simplification. DAG size of input: 792 DAG size of output: 781 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:35:22,372 WARN L234 SmtUtils]: Spent 15.72s on a formula simplification. DAG size of input: 796 DAG size of output: 785 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:35:38,806 WARN L234 SmtUtils]: Spent 15.99s on a formula simplification. DAG size of input: 804 DAG size of output: 791 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:35:55,451 WARN L234 SmtUtils]: Spent 16.17s on a formula simplification. DAG size of input: 808 DAG size of output: 795 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:36:12,416 WARN L234 SmtUtils]: Spent 16.45s on a formula simplification. DAG size of input: 816 DAG size of output: 800 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:36:29,081 WARN L234 SmtUtils]: Spent 16.14s on a formula simplification. DAG size of input: 820 DAG size of output: 804 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)