./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/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_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/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_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/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 8954b1975c9ef274050a4ed05b880cddaf4747278343623028f38a4ef8e6ca73 --- 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 08:11:02,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:11:02,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:11:02,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:11:02,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:11:02,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:11:02,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:11:02,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:11:02,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:11:02,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:11:02,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:11:02,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:11:02,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:11:02,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:11:02,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:11:02,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:11:02,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:11:02,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:11:02,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:11:02,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:11:02,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:11:02,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:11:02,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:11:02,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:11:02,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:11:02,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:11:02,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:11:02,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:11:02,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:11:02,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:11:02,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:11:02,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:11:02,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:11:02,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:11:02,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:11:02,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:11:02,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:11:02,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:11:02,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:11:02,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:11:02,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:11:02,979 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:11:03,023 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:11:03,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:11:03,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:11:03,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:11:03,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:11:03,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:11:03,027 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:11:03,027 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:11:03,027 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:11:03,027 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:11:03,028 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:11:03,029 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:11:03,029 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:11:03,029 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:11:03,029 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:11:03,030 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:11:03,030 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:11:03,030 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:11:03,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:11:03,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:11:03,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:11:03,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:11:03,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:11:03,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:11:03,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:11:03,034 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:11:03,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:11:03,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:11:03,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:11:03,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:11:03,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:11:03,036 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:11:03,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:11:03,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:11:03,037 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:11:03,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:11:03,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:11:03,037 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:11:03,038 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_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8954b1975c9ef274050a4ed05b880cddaf4747278343623028f38a4ef8e6ca73 [2022-11-19 08:11:03,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:11:03,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:11:03,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:11:03,379 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:11:03,380 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:11:03,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i [2022-11-19 08:11:03,452 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/data/429c173cc/7c1b5b0f30ae46cfa0a33178bee4670b/FLAG56956c5fc [2022-11-19 08:11:04,224 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:11:04,224 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i [2022-11-19 08:11:04,260 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/data/429c173cc/7c1b5b0f30ae46cfa0a33178bee4670b/FLAG56956c5fc [2022-11-19 08:11:04,335 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/data/429c173cc/7c1b5b0f30ae46cfa0a33178bee4670b [2022-11-19 08:11:04,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:11:04,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:11:04,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:11:04,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:11:04,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:11:04,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:11:04" (1/1) ... [2022-11-19 08:11:04,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c16bede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:04, skipping insertion in model container [2022-11-19 08:11:04,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:11:04" (1/1) ... [2022-11-19 08:11:04,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:11:04,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:11:05,299 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_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i[115866,115879] [2022-11-19 08:11:05,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:11:05,369 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:11:05,520 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_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i[115866,115879] [2022-11-19 08:11:05,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:11:05,583 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:11:05,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:05 WrapperNode [2022-11-19 08:11:05,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:11:05,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:11:05,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:11:05,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:11:05,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:05" (1/1) ... [2022-11-19 08:11:05,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:05" (1/1) ... [2022-11-19 08:11:05,711 INFO L138 Inliner]: procedures = 99, calls = 313, calls flagged for inlining = 40, calls inlined = 37, statements flattened = 897 [2022-11-19 08:11:05,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:11:05,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:11:05,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:11:05,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:11:05,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:05" (1/1) ... [2022-11-19 08:11:05,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:05" (1/1) ... [2022-11-19 08:11:05,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:05" (1/1) ... [2022-11-19 08:11:05,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:05" (1/1) ... [2022-11-19 08:11:05,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:05" (1/1) ... [2022-11-19 08:11:05,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:05" (1/1) ... [2022-11-19 08:11:05,812 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:05" (1/1) ... [2022-11-19 08:11:05,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:05" (1/1) ... [2022-11-19 08:11:05,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:11:05,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:11:05,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:11:05,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:11:05,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:05" (1/1) ... [2022-11-19 08:11:05,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:11:05,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:05,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:11:05,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:11:05,943 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-11-19 08:11:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-11-19 08:11:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:11:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:11:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:11:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:11:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:11:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_disable_sw_wd_trg [2022-11-19 08:11:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_disable_sw_wd_trg [2022-11-19 08:11:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2022-11-19 08:11:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2022-11-19 08:11:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable_sw_wd_trg [2022-11-19 08:11:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable_sw_wd_trg [2022-11-19 08:11:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-19 08:11:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-19 08:11:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:11:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 08:11:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 08:11:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_write [2022-11-19 08:11:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_write [2022-11-19 08:11:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_disable [2022-11-19 08:11:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_disable [2022-11-19 08:11:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_disable_sw_wd_tren [2022-11-19 08:11:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_disable_sw_wd_tren [2022-11-19 08:11:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 08:11:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 08:11:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:11:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:11:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:11:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 08:11:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 08:11:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_refresh [2022-11-19 08:11:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_refresh [2022-11-19 08:11:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable_sw_wd_tren [2022-11-19 08:11:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable_sw_wd_tren [2022-11-19 08:11:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:11:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:11:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:11:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:11:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable [2022-11-19 08:11:05,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable [2022-11-19 08:11:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:11:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_enable_wden [2022-11-19 08:11:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_enable_wden [2022-11-19 08:11:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:11:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-19 08:11:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-19 08:11:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-11-19 08:11:05,951 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-11-19 08:11:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 08:11:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 08:11:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 08:11:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 08:11:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 08:11:05,954 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 08:11:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:11:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-19 08:11:05,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-19 08:11:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_swc_bank3 [2022-11-19 08:11:05,955 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_swc_bank3 [2022-11-19 08:11:05,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:11:05,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:11:05,955 INFO L130 BoogieDeclarations]: Found specification of procedure pc87413_programm_wdto [2022-11-19 08:11:05,955 INFO L138 BoogieDeclarations]: Found implementation of procedure pc87413_programm_wdto [2022-11-19 08:11:06,243 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:11:06,246 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:11:06,411 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:11:09,618 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:11:09,858 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:11:09,858 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:11:09,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:11:09 BoogieIcfgContainer [2022-11-19 08:11:09,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:11:09,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:11:09,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:11:09,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:11:09,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:11:04" (1/3) ... [2022-11-19 08:11:09,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27316a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:11:09, skipping insertion in model container [2022-11-19 08:11:09,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:05" (2/3) ... [2022-11-19 08:11:09,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27316a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:11:09, skipping insertion in model container [2022-11-19 08:11:09,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:11:09" (3/3) ... [2022-11-19 08:11:09,873 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--pc87413_wdt.ko-entry_point.cil.out.i [2022-11-19 08:11:09,893 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:11:09,894 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:11:09,986 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:11:09,995 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;@519a0edc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:11:09,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:11:10,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 284 states, 159 states have (on average 1.3522012578616351) internal successors, (215), 169 states have internal predecessors, (215), 98 states have call successors, (98), 26 states have call predecessors, (98), 25 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-19 08:11:10,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-19 08:11:10,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:10,026 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:10,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:10,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:10,034 INFO L85 PathProgramCache]: Analyzing trace with hash -498935875, now seen corresponding path program 1 times [2022-11-19 08:11:10,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:10,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398808998] [2022-11-19 08:11:10,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:10,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:10,763 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-19 08:11:10,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:10,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398808998] [2022-11-19 08:11:10,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398808998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:10,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:10,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:11:10,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288506501] [2022-11-19 08:11:10,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:10,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:11:10,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:10,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:11:10,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:10,820 INFO L87 Difference]: Start difference. First operand has 284 states, 159 states have (on average 1.3522012578616351) internal successors, (215), 169 states have internal predecessors, (215), 98 states have call successors, (98), 26 states have call predecessors, (98), 25 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 08:11:11,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:11,202 INFO L93 Difference]: Finished difference Result 795 states and 1145 transitions. [2022-11-19 08:11:11,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:11:11,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2022-11-19 08:11:11,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:11,219 INFO L225 Difference]: With dead ends: 795 [2022-11-19 08:11:11,219 INFO L226 Difference]: Without dead ends: 511 [2022-11-19 08:11:11,225 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 08:11:11,228 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 363 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:11,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 803 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:11:11,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-11-19 08:11:11,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2022-11-19 08:11:11,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 291 states have (on average 1.3230240549828178) internal successors, (385), 299 states have internal predecessors, (385), 172 states have call successors, (172), 48 states have call predecessors, (172), 47 states have return successors, (171), 171 states have call predecessors, (171), 171 states have call successors, (171) [2022-11-19 08:11:11,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 728 transitions. [2022-11-19 08:11:11,366 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 728 transitions. Word has length 99 [2022-11-19 08:11:11,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:11,367 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 728 transitions. [2022-11-19 08:11:11,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 08:11:11,368 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 728 transitions. [2022-11-19 08:11:11,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-19 08:11:11,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:11,377 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:11,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:11:11,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:11,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:11,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1320187585, now seen corresponding path program 1 times [2022-11-19 08:11:11,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:11,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753948813] [2022-11-19 08:11:11,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:11,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-11-19 08:11:11,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:11,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753948813] [2022-11-19 08:11:11,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753948813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:11,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:11,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:11:11,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257794060] [2022-11-19 08:11:11,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:11,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:11:11,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:11,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:11:11,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:11,744 INFO L87 Difference]: Start difference. First operand 511 states and 728 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-19 08:11:13,933 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 08:11:14,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:14,098 INFO L93 Difference]: Finished difference Result 1181 states and 1646 transitions. [2022-11-19 08:11:14,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:11:14,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 194 [2022-11-19 08:11:14,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:14,113 INFO L225 Difference]: With dead ends: 1181 [2022-11-19 08:11:14,113 INFO L226 Difference]: Without dead ends: 694 [2022-11-19 08:11:14,120 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 08:11:14,122 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 155 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:14,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 696 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 08:11:14,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-11-19 08:11:14,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 688. [2022-11-19 08:11:14,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 399 states have (on average 1.3082706766917294) internal successors, (522), 410 states have internal predecessors, (522), 212 states have call successors, (212), 77 states have call predecessors, (212), 76 states have return successors, (211), 210 states have call predecessors, (211), 211 states have call successors, (211) [2022-11-19 08:11:14,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 945 transitions. [2022-11-19 08:11:14,238 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 945 transitions. Word has length 194 [2022-11-19 08:11:14,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:14,241 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 945 transitions. [2022-11-19 08:11:14,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-19 08:11:14,242 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 945 transitions. [2022-11-19 08:11:14,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-19 08:11:14,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:14,260 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:14,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:11:14,262 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:14,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:14,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2051451783, now seen corresponding path program 1 times [2022-11-19 08:11:14,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:14,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182717466] [2022-11-19 08:11:14,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:14,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2022-11-19 08:11:14,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:14,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182717466] [2022-11-19 08:11:14,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182717466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:14,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:14,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:11:14,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429542262] [2022-11-19 08:11:14,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:14,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:11:14,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:14,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:11:14,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:11:14,823 INFO L87 Difference]: Start difference. First operand 688 states and 945 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-19 08:11:15,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:15,331 INFO L93 Difference]: Finished difference Result 1367 states and 1861 transitions. [2022-11-19 08:11:15,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:11:15,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 243 [2022-11-19 08:11:15,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:15,343 INFO L225 Difference]: With dead ends: 1367 [2022-11-19 08:11:15,344 INFO L226 Difference]: Without dead ends: 637 [2022-11-19 08:11:15,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:11:15,351 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 403 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:15,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 638 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:11:15,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-11-19 08:11:15,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 632. [2022-11-19 08:11:15,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 364 states have (on average 1.2884615384615385) internal successors, (469), 375 states have internal predecessors, (469), 193 states have call successors, (193), 75 states have call predecessors, (193), 74 states have return successors, (192), 191 states have call predecessors, (192), 192 states have call successors, (192) [2022-11-19 08:11:15,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 854 transitions. [2022-11-19 08:11:15,432 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 854 transitions. Word has length 243 [2022-11-19 08:11:15,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:15,434 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 854 transitions. [2022-11-19 08:11:15,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-19 08:11:15,434 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 854 transitions. [2022-11-19 08:11:15,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-19 08:11:15,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:15,441 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:15,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:11:15,441 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:15,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:15,442 INFO L85 PathProgramCache]: Analyzing trace with hash -682307010, now seen corresponding path program 1 times [2022-11-19 08:11:15,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:15,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922543628] [2022-11-19 08:11:15,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:15,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:16,292 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2022-11-19 08:11:16,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:16,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922543628] [2022-11-19 08:11:16,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922543628] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:11:16,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306210516] [2022-11-19 08:11:16,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:16,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:16,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:16,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:16,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:11:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:16,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 1877 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-19 08:11:16,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:16,990 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-11-19 08:11:16,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:11:16,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306210516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:16,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:11:16,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-19 08:11:16,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59748491] [2022-11-19 08:11:16,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:16,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:11:16,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:16,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:11:16,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:11:16,994 INFO L87 Difference]: Start difference. First operand 632 states and 854 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 08:11:17,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:17,345 INFO L93 Difference]: Finished difference Result 1061 states and 1452 transitions. [2022-11-19 08:11:17,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:11:17,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 247 [2022-11-19 08:11:17,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:17,349 INFO L225 Difference]: With dead ends: 1061 [2022-11-19 08:11:17,350 INFO L226 Difference]: Without dead ends: 626 [2022-11-19 08:11:17,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:11:17,352 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 3 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:17,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1391 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:11:17,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-11-19 08:11:17,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 626. [2022-11-19 08:11:17,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 361 states have (on average 1.2880886426592797) internal successors, (465), 372 states have internal predecessors, (465), 191 states have call successors, (191), 74 states have call predecessors, (191), 73 states have return successors, (190), 189 states have call predecessors, (190), 190 states have call successors, (190) [2022-11-19 08:11:17,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 846 transitions. [2022-11-19 08:11:17,398 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 846 transitions. Word has length 247 [2022-11-19 08:11:17,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:17,400 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 846 transitions. [2022-11-19 08:11:17,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 08:11:17,400 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 846 transitions. [2022-11-19 08:11:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-11-19 08:11:17,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:17,409 INFO L195 NwaCegarLoop]: trace histogram [22, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:17,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:17,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:17,620 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:17,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:17,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1262743396, now seen corresponding path program 1 times [2022-11-19 08:11:17,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:17,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25641416] [2022-11-19 08:11:17,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:17,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:18,749 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2022-11-19 08:11:18,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:18,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25641416] [2022-11-19 08:11:18,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25641416] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:11:18,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308360206] [2022-11-19 08:11:18,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:18,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:18,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:18,752 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:18,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:11:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:19,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 2442 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:11:19,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2022-11-19 08:11:20,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:11:20,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308360206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:20,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:11:20,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-19 08:11:20,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73340809] [2022-11-19 08:11:20,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:20,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:11:20,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:20,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:11:20,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:11:20,212 INFO L87 Difference]: Start difference. First operand 626 states and 846 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) [2022-11-19 08:11:21,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:21,692 INFO L93 Difference]: Finished difference Result 1583 states and 2201 transitions. [2022-11-19 08:11:21,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:11:21,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) Word has length 358 [2022-11-19 08:11:21,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:21,701 INFO L225 Difference]: With dead ends: 1583 [2022-11-19 08:11:21,701 INFO L226 Difference]: Without dead ends: 1402 [2022-11-19 08:11:21,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:11:21,705 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 738 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:21,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 1480 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 08:11:21,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2022-11-19 08:11:21,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1198. [2022-11-19 08:11:21,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 704 states have (on average 1.3267045454545454) internal successors, (934), 731 states have internal predecessors, (934), 363 states have call successors, (363), 131 states have call predecessors, (363), 130 states have return successors, (362), 356 states have call predecessors, (362), 362 states have call successors, (362) [2022-11-19 08:11:21,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1659 transitions. [2022-11-19 08:11:21,802 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1659 transitions. Word has length 358 [2022-11-19 08:11:21,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:21,807 INFO L495 AbstractCegarLoop]: Abstraction has 1198 states and 1659 transitions. [2022-11-19 08:11:21,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) [2022-11-19 08:11:21,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1659 transitions. [2022-11-19 08:11:21,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-11-19 08:11:21,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:21,821 INFO L195 NwaCegarLoop]: trace histogram [26, 17, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:21,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:22,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:22,031 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:22,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:22,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1377794083, now seen corresponding path program 1 times [2022-11-19 08:11:22,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:22,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237977405] [2022-11-19 08:11:22,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:22,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:22,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1198 trivial. 0 not checked. [2022-11-19 08:11:22,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:22,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237977405] [2022-11-19 08:11:22,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237977405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:22,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:22,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:11:22,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178570579] [2022-11-19 08:11:22,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:22,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:11:22,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:22,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:11:22,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:22,560 INFO L87 Difference]: Start difference. First operand 1198 states and 1659 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2022-11-19 08:11:24,826 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 08:11:24,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:24,974 INFO L93 Difference]: Finished difference Result 2775 states and 3847 transitions. [2022-11-19 08:11:24,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:11:24,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 418 [2022-11-19 08:11:24,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:24,985 INFO L225 Difference]: With dead ends: 2775 [2022-11-19 08:11:24,985 INFO L226 Difference]: Without dead ends: 1776 [2022-11-19 08:11:24,989 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 08:11:24,990 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 208 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:24,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 723 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 08:11:24,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2022-11-19 08:11:25,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1770. [2022-11-19 08:11:25,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1045 states have (on average 1.309090909090909) internal successors, (1368), 1083 states have internal predecessors, (1368), 519 states have call successors, (519), 206 states have call predecessors, (519), 205 states have return successors, (518), 511 states have call predecessors, (518), 518 states have call successors, (518) [2022-11-19 08:11:25,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2405 transitions. [2022-11-19 08:11:25,183 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2405 transitions. Word has length 418 [2022-11-19 08:11:25,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:25,184 INFO L495 AbstractCegarLoop]: Abstraction has 1770 states and 2405 transitions. [2022-11-19 08:11:25,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2022-11-19 08:11:25,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2405 transitions. [2022-11-19 08:11:25,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-11-19 08:11:25,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:25,205 INFO L195 NwaCegarLoop]: trace histogram [26, 17, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:25,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:11:25,206 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:25,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:25,206 INFO L85 PathProgramCache]: Analyzing trace with hash -2064159365, now seen corresponding path program 2 times [2022-11-19 08:11:25,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:25,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683461981] [2022-11-19 08:11:25,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:25,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2022-11-19 08:11:25,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:25,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683461981] [2022-11-19 08:11:25,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683461981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:25,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:25,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:11:25,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875319610] [2022-11-19 08:11:25,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:25,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:11:25,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:25,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:11:25,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:25,669 INFO L87 Difference]: Start difference. First operand 1770 states and 2405 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2022-11-19 08:11:26,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:26,086 INFO L93 Difference]: Finished difference Result 4660 states and 6375 transitions. [2022-11-19 08:11:26,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:11:26,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 418 [2022-11-19 08:11:26,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:26,108 INFO L225 Difference]: With dead ends: 4660 [2022-11-19 08:11:26,108 INFO L226 Difference]: Without dead ends: 3333 [2022-11-19 08:11:26,115 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 08:11:26,117 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 297 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:26,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 650 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:11:26,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2022-11-19 08:11:26,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 3189. [2022-11-19 08:11:26,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3189 states, 1894 states have (on average 1.3199577613516367) internal successors, (2500), 1965 states have internal predecessors, (2500), 934 states have call successors, (934), 361 states have call predecessors, (934), 360 states have return successors, (953), 918 states have call predecessors, (953), 933 states have call successors, (953) [2022-11-19 08:11:26,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3189 states to 3189 states and 4387 transitions. [2022-11-19 08:11:26,417 INFO L78 Accepts]: Start accepts. Automaton has 3189 states and 4387 transitions. Word has length 418 [2022-11-19 08:11:26,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:26,419 INFO L495 AbstractCegarLoop]: Abstraction has 3189 states and 4387 transitions. [2022-11-19 08:11:26,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2022-11-19 08:11:26,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3189 states and 4387 transitions. [2022-11-19 08:11:26,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-11-19 08:11:26,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:26,441 INFO L195 NwaCegarLoop]: trace histogram [26, 17, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:26,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:11:26,442 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:26,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:26,443 INFO L85 PathProgramCache]: Analyzing trace with hash -905172113, now seen corresponding path program 1 times [2022-11-19 08:11:26,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:26,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271334468] [2022-11-19 08:11:26,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:26,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:26,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2022-11-19 08:11:26,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:26,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271334468] [2022-11-19 08:11:26,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271334468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:26,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:26,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:11:26,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927361755] [2022-11-19 08:11:26,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:26,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:11:26,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:26,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:11:26,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:26,848 INFO L87 Difference]: Start difference. First operand 3189 states and 4387 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 08:11:27,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:27,201 INFO L93 Difference]: Finished difference Result 6219 states and 8594 transitions. [2022-11-19 08:11:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:11:27,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 445 [2022-11-19 08:11:27,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:27,226 INFO L225 Difference]: With dead ends: 6219 [2022-11-19 08:11:27,226 INFO L226 Difference]: Without dead ends: 3229 [2022-11-19 08:11:27,237 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 08:11:27,237 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 3 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:27,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 701 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:11:27,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3229 states. [2022-11-19 08:11:27,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3229 to 3229. [2022-11-19 08:11:27,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 1914 states have (on average 1.3113897596656217) internal successors, (2510), 1995 states have internal predecessors, (2510), 944 states have call successors, (944), 361 states have call predecessors, (944), 370 states have return successors, (973), 928 states have call predecessors, (973), 943 states have call successors, (973) [2022-11-19 08:11:27,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 4427 transitions. [2022-11-19 08:11:27,567 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 4427 transitions. Word has length 445 [2022-11-19 08:11:27,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:27,568 INFO L495 AbstractCegarLoop]: Abstraction has 3229 states and 4427 transitions. [2022-11-19 08:11:27,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-19 08:11:27,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 4427 transitions. [2022-11-19 08:11:27,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2022-11-19 08:11:27,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:27,587 INFO L195 NwaCegarLoop]: trace histogram [29, 20, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:27,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:11:27,587 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:27,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:27,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1540715750, now seen corresponding path program 1 times [2022-11-19 08:11:27,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:27,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357550885] [2022-11-19 08:11:27,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:27,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:29,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1536 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 1523 trivial. 0 not checked. [2022-11-19 08:11:29,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:29,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357550885] [2022-11-19 08:11:29,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357550885] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:11:29,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483201763] [2022-11-19 08:11:29,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:29,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:29,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:29,094 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:29,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:11:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:30,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 2822 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-19 08:11:30,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:30,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1536 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 1441 trivial. 0 not checked. [2022-11-19 08:11:30,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:11:30,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483201763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:30,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:11:30,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-11-19 08:11:30,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154406605] [2022-11-19 08:11:30,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:30,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:11:30,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:30,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:11:30,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:11:30,198 INFO L87 Difference]: Start difference. First operand 3229 states and 4427 transitions. Second operand has 4 states, 3 states have (on average 35.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (69), 2 states have call predecessors, (69), 3 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-19 08:11:30,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:30,712 INFO L93 Difference]: Finished difference Result 6442 states and 8839 transitions. [2022-11-19 08:11:30,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:11:30,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 35.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (69), 2 states have call predecessors, (69), 3 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 450 [2022-11-19 08:11:30,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:30,731 INFO L225 Difference]: With dead ends: 6442 [2022-11-19 08:11:30,731 INFO L226 Difference]: Without dead ends: 3230 [2022-11-19 08:11:30,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:11:30,742 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 1 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:30,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1015 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:11:30,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2022-11-19 08:11:30,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 3230. [2022-11-19 08:11:31,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3230 states, 1915 states have (on average 1.3112271540469973) internal successors, (2511), 1996 states have internal predecessors, (2511), 944 states have call successors, (944), 361 states have call predecessors, (944), 370 states have return successors, (973), 928 states have call predecessors, (973), 943 states have call successors, (973) [2022-11-19 08:11:31,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3230 states to 3230 states and 4428 transitions. [2022-11-19 08:11:31,018 INFO L78 Accepts]: Start accepts. Automaton has 3230 states and 4428 transitions. Word has length 450 [2022-11-19 08:11:31,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:31,019 INFO L495 AbstractCegarLoop]: Abstraction has 3230 states and 4428 transitions. [2022-11-19 08:11:31,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 35.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (69), 2 states have call predecessors, (69), 3 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-19 08:11:31,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3230 states and 4428 transitions. [2022-11-19 08:11:31,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-11-19 08:11:31,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:31,029 INFO L195 NwaCegarLoop]: trace histogram [29, 20, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:31,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:31,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:31,240 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:31,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:31,241 INFO L85 PathProgramCache]: Analyzing trace with hash 200997364, now seen corresponding path program 1 times [2022-11-19 08:11:31,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:31,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594539098] [2022-11-19 08:11:31,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:31,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:32,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1587 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 1574 trivial. 0 not checked. [2022-11-19 08:11:32,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:32,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594539098] [2022-11-19 08:11:32,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594539098] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:11:32,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313612286] [2022-11-19 08:11:32,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:32,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:32,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:32,775 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:32,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e198db-95c4-4b8c-8d8b-e6a948397ad5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:11:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:33,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 2912 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-19 08:11:33,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:33,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1587 backedges. 110 proven. 1 refuted. 0 times theorem prover too weak. 1476 trivial. 0 not checked. [2022-11-19 08:11:33,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1587 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 1561 trivial. 0 not checked. [2022-11-19 08:11:34,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313612286] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:34,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1720549074] [2022-11-19 08:11:34,669 INFO L159 IcfgInterpreter]: Started Sifa with 184 locations of interest [2022-11-19 08:11:34,670 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:11:34,674 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:11:34,680 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:11:34,680 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:11:39,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:11:39,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:11:39,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:11:39,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:11:39,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:11:39,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:11:39,446 INFO L217 Elim1Store]: Index analysis took 280 ms [2022-11-19 08:11:46,746 WARN L233 SmtUtils]: Spent 7.25s on a formula simplification. DAG size of input: 748 DAG size of output: 320 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:11:46,749 INFO L321 Elim1Store]: treesize reduction 3090, result has 18.0 percent of original size [2022-11-19 08:11:46,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 28 select indices, 28 select index equivalence classes, 390 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 32 case distinctions, treesize of input 162 treesize of output 773 [2022-11-19 08:11:47,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:11:47,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:11:48,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:11:48,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:11:48,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:11:48,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:11:48,319 INFO L217 Elim1Store]: Index analysis took 901 ms [2022-11-19 08:12:00,957 WARN L233 SmtUtils]: Spent 12.61s on a formula simplification. DAG size of input: 1077 DAG size of output: 451 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:12:00,967 INFO L321 Elim1Store]: treesize reduction 4376, result has 15.6 percent of original size [2022-11-19 08:12:00,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 35 select indices, 35 select index equivalence classes, 418 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 214 case distinctions, treesize of input 257 treesize of output 989 [2022-11-19 08:12:03,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 08:12:03,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:12:03,974 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 7 treesize of output 6 [2022-11-19 08:12:04,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:04,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:04,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:04,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:04,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:04,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:04,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 567 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 103 [2022-11-19 08:12:05,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:05,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:05,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:05,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:05,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:05,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 53 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 58 [2022-11-19 08:12:05,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:05,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:05,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:05,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:05,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:05,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:05,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 35 select indices, 35 select index equivalence classes, 595 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 106 [2022-11-19 08:12:07,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:07,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:07,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:07,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:07,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:07,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:07,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 567 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 103 [2022-11-19 08:12:08,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:08,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:08,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:08,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:08,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:08,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:08,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 35 select indices, 35 select index equivalence classes, 595 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 106 [2022-11-19 08:12:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:08,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:08,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:08,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:08,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:08,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 53 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 58 [2022-11-19 08:12:10,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:12:10,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:12:10,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 08:12:11,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 08:12:12,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:12:12,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:12:14,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:12:14,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 08:12:14,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:12:16,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:12:16,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 08:12:16,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:12:34,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:12:34,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 08:12:35,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:12:35,511 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:12:35,523 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:12:35,551 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:12:52,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:12:52,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:12:52,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 08:12:53,153 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:12:53,190 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:12:53,198 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:13:20,342 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 08:13:20,357 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 08:13:20,365 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 08:13:20,413 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:13:20,413 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 100 treesize of output 103 [2022-11-19 08:13:20,446 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-19 08:13:20,447 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 98 treesize of output 101 [2022-11-19 08:13:20,474 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:13:20,474 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 92 treesize of output 95 [2022-11-19 08:13:20,552 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 08:13:20,558 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 08:13:20,565 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 08:13:22,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 43 select indices, 43 select index equivalence classes, 423 disjoint index pairs (out of 903 index pairs), introduced 43 new quantified variables, introduced 0 case distinctions, treesize of input 384 treesize of output 130 [2022-11-19 08:13:22,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:22,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 43 select indices, 43 select index equivalence classes, 423 disjoint index pairs (out of 903 index pairs), introduced 43 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 132 [2022-11-19 08:13:23,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 08:13:23,466 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:13:23,470 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:13:48,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 43 select indices, 43 select index equivalence classes, 423 disjoint index pairs (out of 903 index pairs), introduced 43 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 132 [2022-11-19 08:13:48,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:48,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 43 select indices, 43 select index equivalence classes, 423 disjoint index pairs (out of 903 index pairs), introduced 43 new quantified variables, introduced 0 case distinctions, treesize of input 384 treesize of output 130 [2022-11-19 08:13:48,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 08:13:49,260 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:13:49,283 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:17:23,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:17:23,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:17:24,236 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:17:24,240 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:17:34,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:17:34,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:17:34,381 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:17:34,395 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:19:40,828 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 560 for LOIs [2022-11-19 08:19:42,036 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 08:19:42,321 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 08:19:42,604 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 08:19:42,927 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 08:19:42,944 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 08:19:42,958 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 08:19:42,980 INFO L197 IcfgInterpreter]: Interpreting procedure __request_region with input of size 96 for LOIs [2022-11-19 08:19:43,018 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 1024 for LOIs [2022-11-19 08:19:45,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:19:45,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 08:19:47,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:47,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 34 select indices, 34 select index equivalence classes, 603 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 1 [2022-11-19 08:19:51,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,564 INFO L217 Elim1Store]: Index analysis took 102 ms [2022-11-19 08:19:51,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:51,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 34 select indices, 34 select index equivalence classes, 603 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 1 [2022-11-19 08:19:55,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:19:55,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 34 select indices, 34 select index equivalence classes, 603 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 1 [2022-11-19 08:19:55,768 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 95 for LOIs [2022-11-19 08:19:55,774 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 80 for LOIs [2022-11-19 08:19:55,789 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:20:07,948 WARN L233 SmtUtils]: Spent 11.89s on a formula simplification. DAG size of input: 958 DAG size of output: 622 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:20:24,609 WARN L233 SmtUtils]: Spent 11.85s on a formula simplification. DAG size of input: 778 DAG size of output: 758 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:20:37,317 WARN L233 SmtUtils]: Spent 12.23s on a formula simplification. DAG size of input: 781 DAG size of output: 761 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:20:50,445 WARN L233 SmtUtils]: Spent 12.60s on a formula simplification. DAG size of input: 796 DAG size of output: 772 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:21:03,687 WARN L233 SmtUtils]: Spent 12.72s on a formula simplification. DAG size of input: 799 DAG size of output: 775 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:21:24,674 WARN L233 SmtUtils]: Spent 20.29s on a formula simplification. DAG size of input: 900 DAG size of output: 791 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:21:47,574 WARN L233 SmtUtils]: Spent 22.14s on a formula simplification. DAG size of input: 904 DAG size of output: 821 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:22:09,095 WARN L233 SmtUtils]: Spent 20.71s on a formula simplification. DAG size of input: 927 DAG size of output: 804 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:22:31,048 WARN L233 SmtUtils]: Spent 21.13s on a formula simplification. DAG size of input: 931 DAG size of output: 810 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:22:46,182 WARN L233 SmtUtils]: Spent 11.92s on a formula simplification. DAG size of input: 663 DAG size of output: 540 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:23:06,139 WARN L233 SmtUtils]: Spent 11.20s on a formula simplification. DAG size of input: 655 DAG size of output: 538 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:23:18,109 WARN L233 SmtUtils]: Spent 11.23s on a formula simplification. DAG size of input: 668 DAG size of output: 551 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:23:30,190 WARN L233 SmtUtils]: Spent 11.32s on a formula simplification. DAG size of input: 670 DAG size of output: 553 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:23:42,283 WARN L233 SmtUtils]: Spent 11.28s on a formula simplification. DAG size of input: 658 DAG size of output: 541 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:23:59,409 WARN L233 SmtUtils]: Spent 11.40s on a formula simplification. DAG size of input: 672 DAG size of output: 555 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:24:12,489 WARN L233 SmtUtils]: Spent 12.14s on a formula simplification. DAG size of input: 668 DAG size of output: 543 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:24:13,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1720549074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:13,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:24:13,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [6, 5, 5] total 51 [2022-11-19 08:24:13,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719791210] [2022-11-19 08:24:13,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:13,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-19 08:24:13,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:13,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-19 08:24:13,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=2394, Unknown=0, NotChecked=0, Total=2550 [2022-11-19 08:24:13,089 INFO L87 Difference]: Start difference. First operand 3230 states and 4428 transitions. Second operand has 41 states, 29 states have (on average 3.413793103448276) internal successors, (99), 28 states have internal predecessors, (99), 10 states have call successors, (67), 6 states have call predecessors, (67), 6 states have return successors, (66), 9 states have call predecessors, (66), 10 states have call successors, (66) [2022-11-19 08:24:30,315 WARN L233 SmtUtils]: Spent 8.26s on a formula simplification. DAG size of input: 566 DAG size of output: 546 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:24:38,996 WARN L233 SmtUtils]: Spent 8.13s on a formula simplification. DAG size of input: 567 DAG size of output: 547 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:24:47,863 WARN L233 SmtUtils]: Spent 8.36s on a formula simplification. DAG size of input: 573 DAG size of output: 553 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:24:56,647 WARN L233 SmtUtils]: Spent 8.04s on a formula simplification. DAG size of input: 563 DAG size of output: 543 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:25:06,304 WARN L233 SmtUtils]: Spent 8.18s on a formula simplification. DAG size of input: 567 DAG size of output: 547 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:25:15,100 WARN L233 SmtUtils]: Spent 8.27s on a formula simplification. DAG size of input: 567 DAG size of output: 547 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:25:24,092 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 []