./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 8393723b 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_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/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_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS --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-8393723 [2022-11-19 07:24:42,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:24:42,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:24:42,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:24:42,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:24:42,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:24:42,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:24:42,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:24:42,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:24:42,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:24:42,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:24:42,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:24:42,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:24:42,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:24:42,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:24:42,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:24:42,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:24:42,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:24:42,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:24:42,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:24:42,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:24:42,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:24:42,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:24:42,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:24:42,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:24:42,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:24:42,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:24:42,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:24:42,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:24:42,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:24:42,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:24:42,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:24:42,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:24:42,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:24:42,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:24:42,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:24:42,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:24:42,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:24:42,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:24:42,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:24:42,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:24:42,987 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:24:43,010 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:24:43,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:24:43,013 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:24:43,013 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:24:43,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:24:43,014 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:24:43,014 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:24:43,015 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:24:43,015 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:24:43,015 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:24:43,016 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:24:43,016 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:24:43,017 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:24:43,017 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:24:43,017 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:24:43,017 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:24:43,018 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:24:43,018 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:24:43,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:24:43,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:24:43,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:24:43,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:24:43,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:24:43,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:24:43,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:24:43,020 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:24:43,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:24:43,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:24:43,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:24:43,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:24:43,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:24:43,022 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:24:43,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:24:43,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:24:43,023 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:24:43,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:24:43,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:24:43,023 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:24:43,024 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_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1848e360a16ec6531e7d7aea690ab68ac7295c6b0bdec191a41fa9ee0518b66d [2022-11-19 07:24:43,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:24:43,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:24:43,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:24:43,356 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:24:43,357 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:24:43,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/../../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 [2022-11-19 07:24:43,448 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/data/c32a9cd25/c65ac9b21a68438f8919c16a4d911b00/FLAGe2d654534 [2022-11-19 07:24:44,326 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:24:44,327 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/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 [2022-11-19 07:24:44,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/data/c32a9cd25/c65ac9b21a68438f8919c16a4d911b00/FLAGe2d654534 [2022-11-19 07:24:44,445 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/data/c32a9cd25/c65ac9b21a68438f8919c16a4d911b00 [2022-11-19 07:24:44,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:24:44,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:24:44,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:24:44,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:24:44,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:24:44,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:24:44" (1/1) ... [2022-11-19 07:24:44,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41339584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:44, skipping insertion in model container [2022-11-19 07:24:44,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:24:44" (1/1) ... [2022-11-19 07:24:44,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:24:44,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:24:45,517 WARN L234 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_a8ad85e1-3409-4605-b9fc-16398b7e16be/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] [2022-11-19 07:24:46,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:24:46,281 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:24:46,444 WARN L234 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_a8ad85e1-3409-4605-b9fc-16398b7e16be/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] [2022-11-19 07:24:46,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:24:46,747 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:24:46,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:46 WrapperNode [2022-11-19 07:24:46,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:24:46,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:24:46,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:24:46,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:24:46,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:46" (1/1) ... [2022-11-19 07:24:46,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:46" (1/1) ... [2022-11-19 07:24:46,973 INFO L138 Inliner]: procedures = 201, calls = 1518, calls flagged for inlining = 91, calls inlined = 86, statements flattened = 2646 [2022-11-19 07:24:46,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:24:46,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:24:46,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:24:46,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:24:46,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:46" (1/1) ... [2022-11-19 07:24:46,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:46" (1/1) ... [2022-11-19 07:24:47,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:46" (1/1) ... [2022-11-19 07:24:47,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:46" (1/1) ... [2022-11-19 07:24:47,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:46" (1/1) ... [2022-11-19 07:24:47,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:46" (1/1) ... [2022-11-19 07:24:47,176 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:46" (1/1) ... [2022-11-19 07:24:47,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:46" (1/1) ... [2022-11-19 07:24:47,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:24:47,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:24:47,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:24:47,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:24:47,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:46" (1/1) ... [2022-11-19 07:24:47,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:24:47,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:24:47,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:24:47,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:24:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-19 07:24:47,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-19 07:24:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2022-11-19 07:24:47,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2022-11-19 07:24:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2022-11-19 07:24:47,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2022-11-19 07:24:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:24:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:24:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:24:47,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:24:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2022-11-19 07:24:47,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2022-11-19 07:24:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-19 07:24:47,329 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-19 07:24:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-19 07:24:47,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-19 07:24:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-11-19 07:24:47,330 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-11-19 07:24:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:24:47,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:24:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_sec_feed [2022-11-19 07:24:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_sec_feed [2022-11-19 07:24:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-19 07:24:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-19 07:24:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-19 07:24:47,332 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-19 07:24:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2022-11-19 07:24:47,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2022-11-19 07:24:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:24:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:24:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 07:24:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 07:24:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:24:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:24:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:24:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:24:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-11-19 07:24:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-11-19 07:24:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-19 07:24:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-19 07:24:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:24:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:24:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb [2022-11-19 07:24:47,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb [2022-11-19 07:24:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:24:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-11-19 07:24:47,338 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-11-19 07:24:47,339 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:24:47,339 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:24:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:24:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:24:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:24:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_feed [2022-11-19 07:24:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_feed [2022-11-19 07:24:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:24:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:24:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2022-11-19 07:24:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2022-11-19 07:24:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 07:24:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 07:24:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-19 07:24:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-19 07:24:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_ts_feed [2022-11-19 07:24:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_ts_feed [2022-11-19 07:24:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:24:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:24:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 07:24:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 07:24:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-19 07:24:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-19 07:24:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2022-11-19 07:24:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2022-11-19 07:24:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-19 07:24:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-19 07:24:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2022-11-19 07:24:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2022-11-19 07:24:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-19 07:24:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-19 07:24:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-11-19 07:24:47,348 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-11-19 07:24:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2022-11-19 07:24:47,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2022-11-19 07:24:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2022-11-19 07:24:47,349 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2022-11-19 07:24:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:24:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:24:47,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:24:47,350 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:24:47,351 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:24:47,351 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:24:47,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:24:47,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:24:47,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2022-11-19 07:24:47,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2022-11-19 07:24:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2022-11-19 07:24:47,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2022-11-19 07:24:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-11-19 07:24:47,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-11-19 07:24:47,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-11-19 07:24:47,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-11-19 07:24:47,354 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-11-19 07:24:47,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-11-19 07:24:47,354 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-19 07:24:47,355 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-19 07:24:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:24:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:24:47,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:24:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-19 07:24:47,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-19 07:24:47,357 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-19 07:24:47,357 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-19 07:24:47,360 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:24:47,360 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:24:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 07:24:47,361 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 07:24:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2022-11-19 07:24:47,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2022-11-19 07:24:47,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:24:47,363 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2022-11-19 07:24:47,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2022-11-19 07:24:47,370 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-11-19 07:24:47,371 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-11-19 07:24:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:24:47,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:24:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2022-11-19 07:24:47,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2022-11-19 07:24:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2022-11-19 07:24:47,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2022-11-19 07:24:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:24:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:24:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:24:47,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:24:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:24:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:24:47,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:24:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:24:47,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:24:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_init_rc [2022-11-19 07:24:47,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_init_rc [2022-11-19 07:24:47,374 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-11-19 07:24:47,374 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-11-19 07:24:47,374 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:24:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:24:47,375 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2022-11-19 07:24:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2022-11-19 07:24:47,375 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_handle_irq [2022-11-19 07:24:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_handle_irq [2022-11-19 07:24:47,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-19 07:24:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-19 07:24:47,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:24:47,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:24:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:24:48,182 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:24:48,185 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:24:48,531 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:24:54,171 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-19 07:24:54,673 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:24:55,658 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:24:55,658 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:24:55,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:24:55 BoogieIcfgContainer [2022-11-19 07:24:55,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:24:55,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:24:55,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:24:55,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:24:55,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:24:44" (1/3) ... [2022-11-19 07:24:55,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cdb782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:24:55, skipping insertion in model container [2022-11-19 07:24:55,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:24:46" (2/3) ... [2022-11-19 07:24:55,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cdb782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:24:55, skipping insertion in model container [2022-11-19 07:24:55,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:24:55" (3/3) ... [2022-11-19 07:24:55,673 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 [2022-11-19 07:24:55,693 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:24:55,693 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:24:55,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:24:55,806 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;@4dbcfd2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:24:55,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:24:55,813 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) [2022-11-19 07:24:55,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-19 07:24:55,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:24:55,824 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] [2022-11-19 07:24:55,824 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:24:55,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:24:55,829 INFO L85 PathProgramCache]: Analyzing trace with hash 269381797, now seen corresponding path program 1 times [2022-11-19 07:24:55,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:24:55,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008553547] [2022-11-19 07:24:55,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:55,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:24:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:56,575 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-19 07:24:56,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:24:56,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008553547] [2022-11-19 07:24:56,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008553547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:24:56,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:24:56,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:24:56,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161133494] [2022-11-19 07:24:56,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:24:56,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:24:56,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:24:56,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:24:56,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:24:56,620 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) [2022-11-19 07:24:59,157 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 [] [2022-11-19 07:25:01,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:25:01,750 INFO L93 Difference]: Finished difference Result 2245 states and 3159 transitions. [2022-11-19 07:25:01,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:25:01,755 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 [2022-11-19 07:25:01,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:25:01,779 INFO L225 Difference]: With dead ends: 2245 [2022-11-19 07:25:01,779 INFO L226 Difference]: Without dead ends: 1462 [2022-11-19 07:25:01,787 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 [2022-11-19 07:25:01,790 INFO L413 NwaCegarLoop]: 1143 mSDtfsCounter, 982 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:25:01,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 2067 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 322 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 07:25:01,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2022-11-19 07:25:01,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1461. [2022-11-19 07:25:01,946 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) [2022-11-19 07:25:01,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2040 transitions. [2022-11-19 07:25:01,965 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2040 transitions. Word has length 46 [2022-11-19 07:25:01,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:25:01,966 INFO L495 AbstractCegarLoop]: Abstraction has 1461 states and 2040 transitions. [2022-11-19 07:25:01,967 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) [2022-11-19 07:25:01,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2040 transitions. [2022-11-19 07:25:01,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-19 07:25:01,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:25:01,976 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] [2022-11-19 07:25:01,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:25:01,976 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:25:01,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:25:01,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1712204947, now seen corresponding path program 1 times [2022-11-19 07:25:01,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:25:01,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87084154] [2022-11-19 07:25:01,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:01,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:25:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:02,565 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 07:25:02,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:25:02,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87084154] [2022-11-19 07:25:02,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87084154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:25:02,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:25:02,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:25:02,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714375172] [2022-11-19 07:25:02,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:25:02,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:25:02,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:02,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:25:02,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:25:02,570 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) [2022-11-19 07:25:04,891 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 [] [2022-11-19 07:25:07,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:25:07,352 INFO L93 Difference]: Finished difference Result 2842 states and 4021 transitions. [2022-11-19 07:25:07,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:25:07,354 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 [2022-11-19 07:25:07,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:25:07,377 INFO L225 Difference]: With dead ends: 2842 [2022-11-19 07:25:07,377 INFO L226 Difference]: Without dead ends: 2839 [2022-11-19 07:25:07,380 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 [2022-11-19 07:25:07,381 INFO L413 NwaCegarLoop]: 1128 mSDtfsCounter, 964 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:25:07,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 2054 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 318 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-19 07:25:07,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2022-11-19 07:25:07,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2824. [2022-11-19 07:25:07,522 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) [2022-11-19 07:25:07,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2824 states to 2824 states and 3999 transitions. [2022-11-19 07:25:07,548 INFO L78 Accepts]: Start accepts. Automaton has 2824 states and 3999 transitions. Word has length 54 [2022-11-19 07:25:07,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:25:07,549 INFO L495 AbstractCegarLoop]: Abstraction has 2824 states and 3999 transitions. [2022-11-19 07:25:07,549 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) [2022-11-19 07:25:07,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2824 states and 3999 transitions. [2022-11-19 07:25:07,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-19 07:25:07,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:25:07,556 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] [2022-11-19 07:25:07,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:25:07,556 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:25:07,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:25:07,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1539228324, now seen corresponding path program 1 times [2022-11-19 07:25:07,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:25:07,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887153162] [2022-11-19 07:25:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:07,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:25:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:08,160 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 07:25:08,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:25:08,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887153162] [2022-11-19 07:25:08,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887153162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:25:08,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:25:08,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:25:08,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705508291] [2022-11-19 07:25:08,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:25:08,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:25:08,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:08,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:25:08,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:25:08,163 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) [2022-11-19 07:25:10,446 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 [] [2022-11-19 07:25:12,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:25:12,827 INFO L93 Difference]: Finished difference Result 3487 states and 4917 transitions. [2022-11-19 07:25:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:25:12,830 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 [2022-11-19 07:25:12,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:25:12,865 INFO L225 Difference]: With dead ends: 3487 [2022-11-19 07:25:12,865 INFO L226 Difference]: Without dead ends: 3484 [2022-11-19 07:25:12,868 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 [2022-11-19 07:25:12,872 INFO L413 NwaCegarLoop]: 1115 mSDtfsCounter, 985 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:25:12,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 1941 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-19 07:25:12,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2022-11-19 07:25:13,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 3483. [2022-11-19 07:25:13,107 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) [2022-11-19 07:25:13,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3483 states to 3483 states and 4913 transitions. [2022-11-19 07:25:13,137 INFO L78 Accepts]: Start accepts. Automaton has 3483 states and 4913 transitions. Word has length 55 [2022-11-19 07:25:13,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:25:13,137 INFO L495 AbstractCegarLoop]: Abstraction has 3483 states and 4913 transitions. [2022-11-19 07:25:13,137 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) [2022-11-19 07:25:13,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3483 states and 4913 transitions. [2022-11-19 07:25:13,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-19 07:25:13,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:25:13,139 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] [2022-11-19 07:25:13,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:25:13,139 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:25:13,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:25:13,140 INFO L85 PathProgramCache]: Analyzing trace with hash -471915440, now seen corresponding path program 1 times [2022-11-19 07:25:13,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:25:13,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174838249] [2022-11-19 07:25:13,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:13,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:25:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:13,337 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 07:25:13,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:25:13,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174838249] [2022-11-19 07:25:13,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174838249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:25:13,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:25:13,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:25:13,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443597837] [2022-11-19 07:25:13,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:25:13,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:25:13,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:13,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:25:13,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:25:13,340 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) [2022-11-19 07:25:15,634 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 [] [2022-11-19 07:25:18,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:25:18,466 INFO L93 Difference]: Finished difference Result 3486 states and 4915 transitions. [2022-11-19 07:25:18,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:25:18,469 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 [2022-11-19 07:25:18,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:25:18,493 INFO L225 Difference]: With dead ends: 3486 [2022-11-19 07:25:18,493 INFO L226 Difference]: Without dead ends: 3483 [2022-11-19 07:25:18,496 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 [2022-11-19 07:25:18,497 INFO L413 NwaCegarLoop]: 1113 mSDtfsCounter, 982 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:25:18,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 1939 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 07:25:18,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2022-11-19 07:25:18,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3482. [2022-11-19 07:25:18,692 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) [2022-11-19 07:25:18,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3482 states to 3482 states and 4911 transitions. [2022-11-19 07:25:18,713 INFO L78 Accepts]: Start accepts. Automaton has 3482 states and 4911 transitions. Word has length 56 [2022-11-19 07:25:18,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:25:18,713 INFO L495 AbstractCegarLoop]: Abstraction has 3482 states and 4911 transitions. [2022-11-19 07:25:18,714 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) [2022-11-19 07:25:18,714 INFO L276 IsEmpty]: Start isEmpty. Operand 3482 states and 4911 transitions. [2022-11-19 07:25:18,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-19 07:25:18,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:25:18,716 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] [2022-11-19 07:25:18,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:25:18,717 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:25:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:25:18,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1744949537, now seen corresponding path program 1 times [2022-11-19 07:25:18,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:25:18,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554098028] [2022-11-19 07:25:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:18,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:25:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 07:25:18,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:25:18,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554098028] [2022-11-19 07:25:18,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554098028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:25:18,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:25:18,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:25:18,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137140110] [2022-11-19 07:25:18,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:25:18,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:25:18,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:18,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:25:18,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:25:18,940 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) [2022-11-19 07:25:21,200 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 [] [2022-11-19 07:25:23,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:25:23,286 INFO L93 Difference]: Finished difference Result 3485 states and 4913 transitions. [2022-11-19 07:25:23,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:25:23,289 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 [2022-11-19 07:25:23,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:25:23,314 INFO L225 Difference]: With dead ends: 3485 [2022-11-19 07:25:23,314 INFO L226 Difference]: Without dead ends: 3482 [2022-11-19 07:25:23,318 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 [2022-11-19 07:25:23,319 INFO L413 NwaCegarLoop]: 1111 mSDtfsCounter, 979 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:25:23,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 1937 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-19 07:25:23,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2022-11-19 07:25:23,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3481. [2022-11-19 07:25:23,528 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) [2022-11-19 07:25:23,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3481 states to 3481 states and 4909 transitions. [2022-11-19 07:25:23,548 INFO L78 Accepts]: Start accepts. Automaton has 3481 states and 4909 transitions. Word has length 57 [2022-11-19 07:25:23,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:25:23,551 INFO L495 AbstractCegarLoop]: Abstraction has 3481 states and 4909 transitions. [2022-11-19 07:25:23,551 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) [2022-11-19 07:25:23,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3481 states and 4909 transitions. [2022-11-19 07:25:23,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-19 07:25:23,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:25:23,552 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] [2022-11-19 07:25:23,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:25:23,553 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:25:23,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:25:23,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1740671283, now seen corresponding path program 1 times [2022-11-19 07:25:23,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:25:23,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849019833] [2022-11-19 07:25:23,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:23,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:25:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:23,756 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 07:25:23,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:25:23,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849019833] [2022-11-19 07:25:23,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849019833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:25:23,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:25:23,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:25:23,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903589902] [2022-11-19 07:25:23,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:25:23,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:25:23,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:23,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:25:23,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:25:23,759 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) [2022-11-19 07:25:26,066 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 [] [2022-11-19 07:25:28,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:25:28,102 INFO L93 Difference]: Finished difference Result 3484 states and 4911 transitions. [2022-11-19 07:25:28,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:25:28,106 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 [2022-11-19 07:25:28,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:25:28,129 INFO L225 Difference]: With dead ends: 3484 [2022-11-19 07:25:28,129 INFO L226 Difference]: Without dead ends: 3475 [2022-11-19 07:25:28,133 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 [2022-11-19 07:25:28,133 INFO L413 NwaCegarLoop]: 1110 mSDtfsCounter, 976 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:25:28,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 1936 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-19 07:25:28,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3475 states. [2022-11-19 07:25:28,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3475 to 3474. [2022-11-19 07:25:28,360 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) [2022-11-19 07:25:28,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 4899 transitions. [2022-11-19 07:25:28,387 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 4899 transitions. Word has length 58 [2022-11-19 07:25:28,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:25:28,388 INFO L495 AbstractCegarLoop]: Abstraction has 3474 states and 4899 transitions. [2022-11-19 07:25:28,389 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) [2022-11-19 07:25:28,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 4899 transitions. [2022-11-19 07:25:28,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-19 07:25:28,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:25:28,404 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] [2022-11-19 07:25:28,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:25:28,404 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:25:28,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:25:28,405 INFO L85 PathProgramCache]: Analyzing trace with hash -468891190, now seen corresponding path program 1 times [2022-11-19 07:25:28,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:25:28,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475362779] [2022-11-19 07:25:28,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:28,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:25:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:28,734 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-19 07:25:28,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:25:28,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475362779] [2022-11-19 07:25:28,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475362779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:25:28,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:25:28,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:25:28,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431705120] [2022-11-19 07:25:28,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:25:28,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:25:28,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:28,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:25:28,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:25:28,737 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) [2022-11-19 07:25:31,103 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 [] [2022-11-19 07:25:32,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:25:32,857 INFO L93 Difference]: Finished difference Result 5826 states and 8191 transitions. [2022-11-19 07:25:32,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:25:32,860 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 [2022-11-19 07:25:32,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:25:32,874 INFO L225 Difference]: With dead ends: 5826 [2022-11-19 07:25:32,874 INFO L226 Difference]: Without dead ends: 2371 [2022-11-19 07:25:32,891 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 [2022-11-19 07:25:32,894 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 142 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:25:32,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1800 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 313 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-19 07:25:32,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2022-11-19 07:25:33,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2366. [2022-11-19 07:25:33,031 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) [2022-11-19 07:25:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 3311 transitions. [2022-11-19 07:25:33,043 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 3311 transitions. Word has length 141 [2022-11-19 07:25:33,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:25:33,043 INFO L495 AbstractCegarLoop]: Abstraction has 2366 states and 3311 transitions. [2022-11-19 07:25:33,043 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) [2022-11-19 07:25:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 3311 transitions. [2022-11-19 07:25:33,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-19 07:25:33,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:25:33,049 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] [2022-11-19 07:25:33,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:25:33,049 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:25:33,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:25:33,050 INFO L85 PathProgramCache]: Analyzing trace with hash 51208617, now seen corresponding path program 1 times [2022-11-19 07:25:33,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:25:33,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379873500] [2022-11-19 07:25:33,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:33,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:25:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:33,403 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-19 07:25:33,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:25:33,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379873500] [2022-11-19 07:25:33,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379873500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:25:33,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:25:33,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:25:33,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84687415] [2022-11-19 07:25:33,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:25:33,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:25:33,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:33,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:25:33,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:25:33,406 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) [2022-11-19 07:25:35,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:40,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:25:43,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:25:43,839 INFO L93 Difference]: Finished difference Result 5410 states and 7709 transitions. [2022-11-19 07:25:43,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:25:43,840 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 [2022-11-19 07:25:43,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:25:43,856 INFO L225 Difference]: With dead ends: 5410 [2022-11-19 07:25:43,857 INFO L226 Difference]: Without dead ends: 2486 [2022-11-19 07:25:43,873 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 [2022-11-19 07:25:43,874 INFO L413 NwaCegarLoop]: 1716 mSDtfsCounter, 1856 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1858 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:25:43,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1858 Valid, 2890 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1451 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2022-11-19 07:25:43,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2022-11-19 07:25:44,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2482. [2022-11-19 07:25:44,078 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) [2022-11-19 07:25:44,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 3445 transitions. [2022-11-19 07:25:44,089 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 3445 transitions. Word has length 147 [2022-11-19 07:25:44,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:25:44,091 INFO L495 AbstractCegarLoop]: Abstraction has 2482 states and 3445 transitions. [2022-11-19 07:25:44,091 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) [2022-11-19 07:25:44,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 3445 transitions. [2022-11-19 07:25:44,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-19 07:25:44,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:25:44,098 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] [2022-11-19 07:25:44,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:25:44,098 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:25:44,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:25:44,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1948663694, now seen corresponding path program 1 times [2022-11-19 07:25:44,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:25:44,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176038216] [2022-11-19 07:25:44,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:44,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:25:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:44,559 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-19 07:25:44,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:25:44,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176038216] [2022-11-19 07:25:44,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176038216] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:25:44,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782746380] [2022-11-19 07:25:44,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:44,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:25:44,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:25:44,566 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:25:44,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:25:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:45,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 2608 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:25:45,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:25:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-19 07:25:45,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:25:45,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782746380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:25:45,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:25:45,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 07:25:45,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473330975] [2022-11-19 07:25:45,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:25:45,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:25:45,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:45,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:25:45,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:25:45,578 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) [2022-11-19 07:25:47,960 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 [] [2022-11-19 07:25:49,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:25:49,465 INFO L93 Difference]: Finished difference Result 4866 states and 6889 transitions. [2022-11-19 07:25:49,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:25:49,467 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 [2022-11-19 07:25:49,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:25:49,481 INFO L225 Difference]: With dead ends: 4866 [2022-11-19 07:25:49,481 INFO L226 Difference]: Without dead ends: 2490 [2022-11-19 07:25:49,494 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 [2022-11-19 07:25:49,495 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 2 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:25:49,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1730 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-19 07:25:49,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2022-11-19 07:25:49,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2486. [2022-11-19 07:25:49,639 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) [2022-11-19 07:25:49,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 3449 transitions. [2022-11-19 07:25:49,650 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 3449 transitions. Word has length 170 [2022-11-19 07:25:49,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:25:49,651 INFO L495 AbstractCegarLoop]: Abstraction has 2486 states and 3449 transitions. [2022-11-19 07:25:49,651 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) [2022-11-19 07:25:49,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 3449 transitions. [2022-11-19 07:25:49,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-19 07:25:49,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:25:49,657 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] [2022-11-19 07:25:49,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:25:49,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:25:49,869 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:25:49,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:25:49,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1650271913, now seen corresponding path program 1 times [2022-11-19 07:25:49,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:25:49,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041723529] [2022-11-19 07:25:49,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:49,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:25:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-19 07:25:50,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:25:50,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041723529] [2022-11-19 07:25:50,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041723529] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:25:50,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337253853] [2022-11-19 07:25:50,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:50,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:25:50,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:25:50,355 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:25:50,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:25:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:51,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 2708 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:25:51,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:25:51,493 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-19 07:25:51,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:25:51,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337253853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:25:51,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:25:51,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 07:25:51,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469720396] [2022-11-19 07:25:51,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:25:51,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:25:51,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:51,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:25:51,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:25:51,495 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) [2022-11-19 07:25:53,914 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 [] [2022-11-19 07:25:55,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:25:55,637 INFO L93 Difference]: Finished difference Result 4870 states and 6889 transitions. [2022-11-19 07:25:55,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:25:55,639 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 [2022-11-19 07:25:55,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:25:55,655 INFO L225 Difference]: With dead ends: 4870 [2022-11-19 07:25:55,655 INFO L226 Difference]: Without dead ends: 2490 [2022-11-19 07:25:55,669 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 [2022-11-19 07:25:55,670 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 0 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:25:55,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1731 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-19 07:25:55,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2022-11-19 07:25:55,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2490. [2022-11-19 07:25:55,818 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) [2022-11-19 07:25:55,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 3453 transitions. [2022-11-19 07:25:55,829 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 3453 transitions. Word has length 172 [2022-11-19 07:25:55,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:25:55,830 INFO L495 AbstractCegarLoop]: Abstraction has 2490 states and 3453 transitions. [2022-11-19 07:25:55,830 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) [2022-11-19 07:25:55,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 3453 transitions. [2022-11-19 07:25:55,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-19 07:25:55,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:25:55,836 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] [2022-11-19 07:25:55,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:25:56,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 07:25:56,054 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:25:56,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:25:56,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1259461754, now seen corresponding path program 1 times [2022-11-19 07:25:56,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:25:56,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643209613] [2022-11-19 07:25:56,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:56,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:25:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:56,523 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-19 07:25:56,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:25:56,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643209613] [2022-11-19 07:25:56,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643209613] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:25:56,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272793112] [2022-11-19 07:25:56,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:56,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:25:56,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:25:56,527 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:25:56,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:25:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:57,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 2735 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:25:57,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:25:57,630 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-19 07:25:57,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:25:57,862 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-19 07:25:57,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272793112] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:25:57,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [641022521] [2022-11-19 07:25:57,891 INFO L159 IcfgInterpreter]: Started Sifa with 123 locations of interest [2022-11-19 07:25:57,892 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:25:57,896 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:25:57,901 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:25:57,902 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:26:00,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:00,332 INFO L217 Elim1Store]: Index analysis took 368 ms [2022-11-19 07:26:12,289 WARN L233 SmtUtils]: Spent 11.90s on a formula simplification. DAG size of input: 1354 DAG size of output: 903 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:26:12,294 INFO L321 Elim1Store]: treesize reduction 1500, result has 47.4 percent of original size [2022-11-19 07:26:12,298 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:26:14,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:14,900 INFO L217 Elim1Store]: Index analysis took 682 ms [2022-11-19 07:26:33,049 WARN L233 SmtUtils]: Spent 18.10s on a formula simplification. DAG size of input: 1655 DAG size of output: 903 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:26:33,053 INFO L321 Elim1Store]: treesize reduction 2700, result has 33.3 percent of original size [2022-11-19 07:26:33,056 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:26:42,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,001 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:26:43,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:43,763 INFO L217 Elim1Store]: Index analysis took 174 ms [2022-11-19 07:26:43,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 217 select indices, 217 select index equivalence classes, 2290 disjoint index pairs (out of 23436 index pairs), introduced 217 new quantified variables, introduced 0 case distinctions, treesize of input 1724 treesize of output 668 [2022-11-19 07:26:44,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:44,305 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:26:50,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:50,644 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:26:51,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,042 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:26:51,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:51,802 INFO L217 Elim1Store]: Index analysis took 149 ms [2022-11-19 07:26:51,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 217 select indices, 217 select index equivalence classes, 2290 disjoint index pairs (out of 23436 index pairs), introduced 217 new quantified variables, introduced 0 case distinctions, treesize of input 1724 treesize of output 668 [2022-11-19 07:27:08,996 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 120 for LOIs [2022-11-19 07:27:09,025 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 759 for LOIs [2022-11-19 07:27:09,405 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:27:58,599 WARN L233 SmtUtils]: Spent 49.03s on a formula simplification. DAG size of input: 1950 DAG size of output: 1648 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:08,383 WARN L233 SmtUtils]: Spent 8.79s on a formula simplification. DAG size of input: 752 DAG size of output: 749 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:17,568 WARN L233 SmtUtils]: Spent 8.99s on a formula simplification. DAG size of input: 756 DAG size of output: 753 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:26,843 WARN L233 SmtUtils]: Spent 9.05s on a formula simplification. DAG size of input: 764 DAG size of output: 759 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:36,445 WARN L233 SmtUtils]: Spent 9.34s on a formula simplification. DAG size of input: 776 DAG size of output: 771 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:46,275 WARN L233 SmtUtils]: Spent 9.56s on a formula simplification. DAG size of input: 787 DAG size of output: 776 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:56,332 WARN L233 SmtUtils]: Spent 9.76s on a formula simplification. DAG size of input: 791 DAG size of output: 780 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:06,639 WARN L233 SmtUtils]: Spent 9.97s on a formula simplification. DAG size of input: 799 DAG size of output: 786 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:17,193 WARN L233 SmtUtils]: Spent 10.19s on a formula simplification. DAG size of input: 803 DAG size of output: 790 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:28,068 WARN L233 SmtUtils]: Spent 10.44s on a formula simplification. DAG size of input: 811 DAG size of output: 795 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:38,922 WARN L233 SmtUtils]: Spent 10.44s on a formula simplification. DAG size of input: 815 DAG size of output: 799 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:47,921 WARN L233 SmtUtils]: Spent 8.65s on a formula simplification. DAG size of input: 759 DAG size of output: 756 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:57,041 WARN L233 SmtUtils]: Spent 8.76s on a formula simplification. DAG size of input: 761 DAG size of output: 758 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:29:57,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [641022521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:57,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:29:57,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [4, 4, 4] total 23 [2022-11-19 07:29:57,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144072533] [2022-11-19 07:29:57,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:57,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-19 07:29:57,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:57,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-19 07:29:57,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-11-19 07:29:57,080 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) [2022-11-19 07:30:14,288 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 [] [2022-11-19 07:30:44,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:30:44,736 INFO L93 Difference]: Finished difference Result 5000 states and 6950 transitions. [2022-11-19 07:30:44,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 07:30:44,738 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 [2022-11-19 07:30:44,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:30:44,750 INFO L225 Difference]: With dead ends: 5000 [2022-11-19 07:30:44,751 INFO L226 Difference]: Without dead ends: 2530 [2022-11-19 07:30:44,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 498 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 167.7s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-11-19 07:30:44,761 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 24 mSDsluCounter, 7053 mSDsCounter, 0 mSdLazyCounter, 3451 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 7926 SdHoareTripleChecker+Invalid, 3465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:30:44,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 7926 Invalid, 3465 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 3451 Invalid, 1 Unknown, 0 Unchecked, 47.3s Time] [2022-11-19 07:30:44,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2022-11-19 07:30:44,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2510. [2022-11-19 07:30:44,981 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) [2022-11-19 07:30:44,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2510 states to 2510 states and 3483 transitions. [2022-11-19 07:30:44,992 INFO L78 Accepts]: Start accepts. Automaton has 2510 states and 3483 transitions. Word has length 173 [2022-11-19 07:30:44,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:30:44,993 INFO L495 AbstractCegarLoop]: Abstraction has 2510 states and 3483 transitions. [2022-11-19 07:30:44,993 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) [2022-11-19 07:30:44,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2510 states and 3483 transitions. [2022-11-19 07:30:44,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-19 07:30:44,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:45,000 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] [2022-11-19 07:30:45,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:30:45,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:30:45,212 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:30:45,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:45,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1729046780, now seen corresponding path program 1 times [2022-11-19 07:30:45,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:30:45,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819565829] [2022-11-19 07:30:45,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:45,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:30:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:45,634 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-19 07:30:45,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:30:45,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819565829] [2022-11-19 07:30:45,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819565829] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:30:45,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808653532] [2022-11-19 07:30:45,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:45,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:30:45,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:30:45,636 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:30:45,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8ad85e1-3409-4605-b9fc-16398b7e16be/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:30:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:46,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 2750 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:30:46,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:30:46,706 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-19 07:30:46,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:30:46,908 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-19 07:30:46,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808653532] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:30:46,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1412521737] [2022-11-19 07:30:46,918 INFO L159 IcfgInterpreter]: Started Sifa with 123 locations of interest [2022-11-19 07:30:46,918 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:30:46,919 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:30:46,919 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:30:46,919 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:30:48,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:48,616 INFO L217 Elim1Store]: Index analysis took 244 ms [2022-11-19 07:31:06,591 WARN L233 SmtUtils]: Spent 17.94s on a formula simplification. DAG size of input: 1655 DAG size of output: 903 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:31:06,594 INFO L321 Elim1Store]: treesize reduction 2700, result has 33.3 percent of original size [2022-11-19 07:31:06,595 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:31:08,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:08,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 151 select indices, 151 select index equivalence classes, 11477 disjoint index pairs (out of 11325 index pairs), introduced 151 new quantified variables, introduced 0 case distinctions, treesize of input 762 treesize of output 1214 [2022-11-19 07:31:16,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:16,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,101 INFO L217 Elim1Store]: Index analysis took 164 ms [2022-11-19 07:31:17,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 217 select indices, 217 select index equivalence classes, 2290 disjoint index pairs (out of 23436 index pairs), introduced 217 new quantified variables, introduced 0 case distinctions, treesize of input 1724 treesize of output 668 [2022-11-19 07:31:17,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:17,710 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:31:18,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:18,107 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:31:24,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:24,741 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:31:25,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,163 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:31:25,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:25,883 INFO L217 Elim1Store]: Index analysis took 147 ms [2022-11-19 07:31:25,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 217 select indices, 217 select index equivalence classes, 2290 disjoint index pairs (out of 23436 index pairs), introduced 217 new quantified variables, introduced 0 case distinctions, treesize of input 1724 treesize of output 668 [2022-11-19 07:31:36,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:31:36,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:31:36,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 07:31:36,440 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-19 07:31:36,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 56 [2022-11-19 07:31:36,474 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:31:36,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2022-11-19 07:31:36,506 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:31:36,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-19 07:31:36,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:31:36,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:31:36,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:31:37,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 31 select indices, 31 select index equivalence classes, 436 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 276 treesize of output 94 [2022-11-19 07:31:37,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:37,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 31 select indices, 31 select index equivalence classes, 436 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 276 treesize of output 94 [2022-11-19 07:31:38,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 31 select indices, 31 select index equivalence classes, 436 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 276 treesize of output 94 [2022-11-19 07:31:38,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:31:38,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 31 select indices, 31 select index equivalence classes, 436 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 276 treesize of output 94 [2022-11-19 07:32:00,897 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 230 for LOIs [2022-11-19 07:32:01,090 INFO L197 IcfgInterpreter]: Interpreting procedure ttusb_dec_probe with input of size 159 for LOIs [2022-11-19 07:32:01,472 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 127 for LOIs [2022-11-19 07:32:01,510 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 759 for LOIs [2022-11-19 07:32:08,431 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:32:57,375 WARN L233 SmtUtils]: Spent 48.79s on a formula simplification. DAG size of input: 1950 DAG size of output: 1648 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:33:11,502 WARN L233 SmtUtils]: Spent 8.85s on a formula simplification. DAG size of input: 752 DAG size of output: 749 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:33:20,586 WARN L233 SmtUtils]: Spent 8.89s on a formula simplification. DAG size of input: 756 DAG size of output: 753 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:33:29,863 WARN L233 SmtUtils]: Spent 9.06s on a formula simplification. DAG size of input: 764 DAG size of output: 759 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:33:39,599 WARN L233 SmtUtils]: Spent 9.48s on a formula simplification. DAG size of input: 776 DAG size of output: 771 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:33:49,527 WARN L233 SmtUtils]: Spent 9.64s on a formula simplification. DAG size of input: 787 DAG size of output: 776 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:33:59,624 WARN L233 SmtUtils]: Spent 9.80s on a formula simplification. DAG size of input: 791 DAG size of output: 780 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:34:10,095 WARN L233 SmtUtils]: Spent 10.13s on a formula simplification. DAG size of input: 799 DAG size of output: 786 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:34:21,137 WARN L233 SmtUtils]: Spent 10.67s on a formula simplification. DAG size of input: 803 DAG size of output: 790 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:34:31,982 WARN L233 SmtUtils]: Spent 10.42s on a formula simplification. DAG size of input: 811 DAG size of output: 795 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:34:42,923 WARN L233 SmtUtils]: Spent 10.52s on a formula simplification. DAG size of input: 815 DAG size of output: 799 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:34:52,128 WARN L233 SmtUtils]: Spent 8.86s on a formula simplification. DAG size of input: 759 DAG size of output: 756 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:35:20,024 WARN L233 SmtUtils]: Spent 27.42s on a formula simplification. DAG size of input: 901 DAG size of output: 777 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:35:40,613 WARN L233 SmtUtils]: Spent 20.04s on a formula simplification. DAG size of input: 908 DAG size of output: 780 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:35:47,739 WARN L233 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 646 DAG size of output: 624 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:36:05,271 WARN L233 SmtUtils]: Spent 16.83s on a formula simplification. DAG size of input: 921 DAG size of output: 800 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:36:38,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1412521737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:36:38,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:36:38,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [4, 4, 4] total 48 [2022-11-19 07:36:38,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868397376] [2022-11-19 07:36:38,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:36:38,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-19 07:36:38,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:36:38,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-19 07:36:38,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=2074, Unknown=0, NotChecked=0, Total=2256 [2022-11-19 07:36:38,247 INFO L87 Difference]: Start difference. First operand 2510 states and 3483 transitions. Second operand has 43 states, 33 states have (on average 2.5454545454545454) internal successors, (84), 30 states have internal predecessors, (84), 10 states have call successors, (29), 5 states have call predecessors, (29), 4 states have return successors, (28), 9 states have call predecessors, (28), 10 states have call successors, (28) [2022-11-19 07:37:21,940 WARN L233 SmtUtils]: Spent 20.75s on a formula simplification. DAG size of input: 778 DAG size of output: 778 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:37:33,510 WARN L233 SmtUtils]: Spent 10.40s on a formula simplification. DAG size of input: 805 DAG size of output: 804 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:37:42,395 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 892 DAG size of output: 316 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:37:55,204 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 []