./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-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0 --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 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 --- 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-e04fb08 [2022-11-16 16:09:16,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:09:16,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:09:16,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:09:16,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:09:16,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:09:16,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:09:16,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:09:16,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:09:16,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:09:16,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:09:16,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:09:16,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:09:16,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:09:16,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:09:16,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:09:16,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:09:16,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:09:16,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:09:16,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:09:16,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:09:16,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:09:16,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:09:16,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:09:16,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:09:16,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:09:16,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:09:16,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:09:16,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:09:16,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:09:16,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:09:16,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:09:16,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:09:16,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:09:16,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:09:16,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:09:16,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:09:16,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:09:16,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:09:16,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:09:16,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:09:16,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 16:09:16,519 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:09:16,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:09:16,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:09:16,520 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:09:16,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:09:16,521 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:09:16,521 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:09:16,522 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:09:16,522 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:09:16,522 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:09:16,522 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:09:16,522 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:09:16,523 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:09:16,523 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:09:16,523 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:09:16,523 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:09:16,523 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:09:16,524 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:09:16,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:09:16,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:09:16,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:09:16,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:09:16,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:09:16,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:09:16,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:09:16,526 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:09:16,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:09:16,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:09:16,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:09:16,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:09:16,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:09:16,527 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:09:16,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:09:16,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:09:16,528 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:09:16,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:09:16,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:09:16,528 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:09:16,528 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_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 [2022-11-16 16:09:16,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:09:16,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:09:16,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:09:16,861 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:09:16,862 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:09:16,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-11-16 16:09:16,968 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/data/01a6d2c85/2d4cee7c46f247489cdaa5de9260b13d/FLAGd626b2f42 [2022-11-16 16:09:17,922 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:09:17,923 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-11-16 16:09:17,972 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/data/01a6d2c85/2d4cee7c46f247489cdaa5de9260b13d/FLAGd626b2f42 [2022-11-16 16:09:18,305 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/data/01a6d2c85/2d4cee7c46f247489cdaa5de9260b13d [2022-11-16 16:09:18,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:09:18,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:09:18,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:09:18,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:09:18,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:09:18,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:09:18" (1/1) ... [2022-11-16 16:09:18,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5834deea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:18, skipping insertion in model container [2022-11-16 16:09:18,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:09:18" (1/1) ... [2022-11-16 16:09:18,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:09:18,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:09:21,642 WARN L229 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_fae31fc6-a10d-4ac1-935b-daec30495a1e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2022-11-16 16:09:21,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:09:21,956 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:09:22,591 WARN L229 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_fae31fc6-a10d-4ac1-935b-daec30495a1e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2022-11-16 16:09:22,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:09:22,839 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:09:22,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:22 WrapperNode [2022-11-16 16:09:22,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:09:22,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:09:22,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:09:22,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:09:22,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:22" (1/1) ... [2022-11-16 16:09:22,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:22" (1/1) ... [2022-11-16 16:09:23,123 INFO L138 Inliner]: procedures = 341, calls = 3956, calls flagged for inlining = 136, calls inlined = 92, statements flattened = 5417 [2022-11-16 16:09:23,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:09:23,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:09:23,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:09:23,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:09:23,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:22" (1/1) ... [2022-11-16 16:09:23,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:22" (1/1) ... [2022-11-16 16:09:23,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:22" (1/1) ... [2022-11-16 16:09:23,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:22" (1/1) ... [2022-11-16 16:09:23,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:22" (1/1) ... [2022-11-16 16:09:23,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:22" (1/1) ... [2022-11-16 16:09:23,533 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:22" (1/1) ... [2022-11-16 16:09:23,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:22" (1/1) ... [2022-11-16 16:09:23,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:09:23,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:09:23,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:09:23,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:09:23,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:22" (1/1) ... [2022-11-16 16:09:23,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:09:23,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:09:23,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:09:23,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fae31fc6-a10d-4ac1-935b-daec30495a1e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:09:23,704 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2022-11-16 16:09:23,705 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2022-11-16 16:09:23,705 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2022-11-16 16:09:23,705 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2022-11-16 16:09:23,705 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-16 16:09:23,705 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-16 16:09:23,705 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2022-11-16 16:09:23,706 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2022-11-16 16:09:23,706 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-16 16:09:23,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-16 16:09:23,706 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2022-11-16 16:09:23,706 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2022-11-16 16:09:23,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 16:09:23,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 16:09:23,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 16:09:23,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 16:09:23,707 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-16 16:09:23,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-16 16:09:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2022-11-16 16:09:23,708 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2022-11-16 16:09:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2022-11-16 16:09:23,708 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2022-11-16 16:09:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2022-11-16 16:09:23,709 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2022-11-16 16:09:23,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-16 16:09:23,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-16 16:09:23,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 16:09:23,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 16:09:23,709 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2022-11-16 16:09:23,710 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2022-11-16 16:09:23,710 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2022-11-16 16:09:23,710 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2022-11-16 16:09:23,710 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2022-11-16 16:09:23,710 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2022-11-16 16:09:23,711 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2022-11-16 16:09:23,711 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2022-11-16 16:09:23,711 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2022-11-16 16:09:23,711 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2022-11-16 16:09:23,711 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-16 16:09:23,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-16 16:09:23,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 16:09:23,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 16:09:23,712 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2022-11-16 16:09:23,712 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2022-11-16 16:09:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 16:09:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 16:09:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2022-11-16 16:09:23,714 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2022-11-16 16:09:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 16:09:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 16:09:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-16 16:09:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-16 16:09:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2022-11-16 16:09:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2022-11-16 16:09:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-16 16:09:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-16 16:09:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2022-11-16 16:09:23,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2022-11-16 16:09:23,718 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 16:09:23,719 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 16:09:23,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-11-16 16:09:23,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-11-16 16:09:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2022-11-16 16:09:23,720 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2022-11-16 16:09:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-11-16 16:09:23,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-11-16 16:09:23,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-11-16 16:09:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-11-16 16:09:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:09:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2022-11-16 16:09:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2022-11-16 16:09:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 16:09:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 16:09:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-11-16 16:09:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-11-16 16:09:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2022-11-16 16:09:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2022-11-16 16:09:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 16:09:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 16:09:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2022-11-16 16:09:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2022-11-16 16:09:23,725 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2022-11-16 16:09:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2022-11-16 16:09:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2022-11-16 16:09:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2022-11-16 16:09:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2022-11-16 16:09:23,727 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2022-11-16 16:09:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 16:09:23,728 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 16:09:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2022-11-16 16:09:23,728 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2022-11-16 16:09:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:09:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-11-16 16:09:23,730 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-11-16 16:09:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 16:09:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-16 16:09:23,730 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-16 16:09:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-16 16:09:23,731 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-16 16:09:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 16:09:23,731 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 16:09:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2022-11-16 16:09:23,731 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2022-11-16 16:09:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-16 16:09:23,732 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-16 16:09:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2022-11-16 16:09:23,732 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2022-11-16 16:09:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2022-11-16 16:09:23,733 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2022-11-16 16:09:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 16:09:23,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 16:09:23,738 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-11-16 16:09:23,738 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-11-16 16:09:23,738 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2022-11-16 16:09:23,738 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2022-11-16 16:09:23,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:09:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2022-11-16 16:09:23,743 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2022-11-16 16:09:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-16 16:09:23,743 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-16 16:09:23,748 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-16 16:09:23,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-16 16:09:23,748 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2022-11-16 16:09:23,749 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2022-11-16 16:09:23,749 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-11-16 16:09:23,749 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-11-16 16:09:23,749 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-16 16:09:23,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-16 16:09:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-16 16:09:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-16 16:09:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-16 16:09:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-16 16:09:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2022-11-16 16:09:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2022-11-16 16:09:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 16:09:23,751 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 16:09:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:09:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2022-11-16 16:09:23,751 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2022-11-16 16:09:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 16:09:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 16:09:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2022-11-16 16:09:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2022-11-16 16:09:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 16:09:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 16:09:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 16:09:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-16 16:09:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-16 16:09:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 16:09:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 16:09:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-11-16 16:09:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-11-16 16:09:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2022-11-16 16:09:23,754 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2022-11-16 16:09:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2022-11-16 16:09:23,754 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2022-11-16 16:09:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2022-11-16 16:09:23,754 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2022-11-16 16:09:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:09:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2022-11-16 16:09:23,755 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2022-11-16 16:09:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 16:09:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-11-16 16:09:23,756 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-11-16 16:09:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-16 16:09:23,756 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-16 16:09:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-16 16:09:23,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-16 16:09:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 16:09:23,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 16:09:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2022-11-16 16:09:23,757 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2022-11-16 16:09:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-16 16:09:23,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-16 16:09:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-16 16:09:23,758 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-16 16:09:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-16 16:09:23,758 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-16 16:09:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2022-11-16 16:09:23,758 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2022-11-16 16:09:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-16 16:09:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-16 16:09:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:09:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2022-11-16 16:09:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2022-11-16 16:09:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2022-11-16 16:09:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2022-11-16 16:09:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-16 16:09:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-16 16:09:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:09:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:09:24,827 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:09:24,835 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:09:25,231 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 16:09:33,828 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:09:35,665 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:09:35,665 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 16:09:35,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:09:35 BoogieIcfgContainer [2022-11-16 16:09:35,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:09:35,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:09:35,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:09:35,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:09:35,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:09:18" (1/3) ... [2022-11-16 16:09:35,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4205a0e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:09:35, skipping insertion in model container [2022-11-16 16:09:35,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:22" (2/3) ... [2022-11-16 16:09:35,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4205a0e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:09:35, skipping insertion in model container [2022-11-16 16:09:35,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:09:35" (3/3) ... [2022-11-16 16:09:35,683 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-11-16 16:09:35,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:09:35,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 16:09:35,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:09:35,861 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;@5125c1d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:09:35,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 16:09:35,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 1237 states, 751 states have (on average 1.3501997336884155) internal successors, (1014), 795 states have internal predecessors, (1014), 396 states have call successors, (396), 89 states have call predecessors, (396), 88 states have return successors, (387), 368 states have call predecessors, (387), 387 states have call successors, (387) [2022-11-16 16:09:35,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-16 16:09:35,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:09:35,900 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:09:35,901 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:09:35,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:09:35,907 INFO L85 PathProgramCache]: Analyzing trace with hash -513617638, now seen corresponding path program 1 times [2022-11-16 16:09:35,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:09:35,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981618483] [2022-11-16 16:09:35,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:09:35,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:09:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:09:37,621 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-16 16:09:37,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:09:37,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981618483] [2022-11-16 16:09:37,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981618483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:09:37,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:09:37,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:09:37,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975831235] [2022-11-16 16:09:37,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:09:37,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:09:37,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:09:37,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:09:37,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:09:37,694 INFO L87 Difference]: Start difference. First operand has 1237 states, 751 states have (on average 1.3501997336884155) internal successors, (1014), 795 states have internal predecessors, (1014), 396 states have call successors, (396), 89 states have call predecessors, (396), 88 states have return successors, (387), 368 states have call predecessors, (387), 387 states have call successors, (387) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:09:41,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:09:41,685 INFO L93 Difference]: Finished difference Result 3391 states and 5052 transitions. [2022-11-16 16:09:41,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:09:41,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2022-11-16 16:09:41,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:09:41,745 INFO L225 Difference]: With dead ends: 3391 [2022-11-16 16:09:41,745 INFO L226 Difference]: Without dead ends: 2094 [2022-11-16 16:09:41,761 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 [2022-11-16 16:09:41,765 INFO L413 NwaCegarLoop]: 1895 mSDtfsCounter, 1395 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-16 16:09:41,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1395 Valid, 3434 Invalid, 436 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-16 16:09:41,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2022-11-16 16:09:42,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 2091. [2022-11-16 16:09:42,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 1289 states have (on average 1.34833204034135) internal successors, (1738), 1355 states have internal predecessors, (1738), 645 states have call successors, (645), 157 states have call predecessors, (645), 156 states have return successors, (644), 606 states have call predecessors, (644), 644 states have call successors, (644) [2022-11-16 16:09:42,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 3027 transitions. [2022-11-16 16:09:42,061 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 3027 transitions. Word has length 125 [2022-11-16 16:09:42,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:09:42,062 INFO L495 AbstractCegarLoop]: Abstraction has 2091 states and 3027 transitions. [2022-11-16 16:09:42,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:09:42,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 3027 transitions. [2022-11-16 16:09:42,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-16 16:09:42,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:09:42,078 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:09:42,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:09:42,079 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:09:42,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:09:42,080 INFO L85 PathProgramCache]: Analyzing trace with hash -491095559, now seen corresponding path program 1 times [2022-11-16 16:09:42,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:09:42,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811423764] [2022-11-16 16:09:42,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:09:42,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:09:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:09:42,978 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-16 16:09:42,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:09:42,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811423764] [2022-11-16 16:09:42,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811423764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:09:42,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:09:42,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:09:42,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153000516] [2022-11-16 16:09:42,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:09:42,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:09:42,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:09:42,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:09:42,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:09:42,983 INFO L87 Difference]: Start difference. First operand 2091 states and 3027 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-16 16:09:45,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:09:48,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:09:48,429 INFO L93 Difference]: Finished difference Result 5303 states and 7665 transitions. [2022-11-16 16:09:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:09:48,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 126 [2022-11-16 16:09:48,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:09:48,463 INFO L225 Difference]: With dead ends: 5303 [2022-11-16 16:09:48,463 INFO L226 Difference]: Without dead ends: 3237 [2022-11-16 16:09:48,475 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 [2022-11-16 16:09:48,477 INFO L413 NwaCegarLoop]: 1755 mSDtfsCounter, 1024 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:09:48,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 3188 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-16 16:09:48,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3237 states. [2022-11-16 16:09:48,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3237 to 3234. [2022-11-16 16:09:48,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 1998 states have (on average 1.3503503503503504) internal successors, (2698), 2122 states have internal predecessors, (2698), 986 states have call successors, (986), 250 states have call predecessors, (986), 249 states have return successors, (985), 911 states have call predecessors, (985), 985 states have call successors, (985) [2022-11-16 16:09:48,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 4669 transitions. [2022-11-16 16:09:48,661 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 4669 transitions. Word has length 126 [2022-11-16 16:09:48,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:09:48,662 INFO L495 AbstractCegarLoop]: Abstraction has 3234 states and 4669 transitions. [2022-11-16 16:09:48,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-16 16:09:48,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 4669 transitions. [2022-11-16 16:09:48,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-16 16:09:48,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:09:48,674 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:09:48,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:09:48,675 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:09:48,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:09:48,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1520773491, now seen corresponding path program 1 times [2022-11-16 16:09:48,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:09:48,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162909574] [2022-11-16 16:09:48,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:09:48,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:09:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:09:49,407 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-11-16 16:09:49,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:09:49,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162909574] [2022-11-16 16:09:49,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162909574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:09:49,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:09:49,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:09:49,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759779652] [2022-11-16 16:09:49,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:09:49,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:09:49,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:09:49,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:09:49,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:09:49,411 INFO L87 Difference]: Start difference. First operand 3234 states and 4669 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:09:52,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:09:52,108 INFO L93 Difference]: Finished difference Result 3548 states and 5038 transitions. [2022-11-16 16:09:52,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:09:52,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2022-11-16 16:09:52,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:09:52,133 INFO L225 Difference]: With dead ends: 3548 [2022-11-16 16:09:52,133 INFO L226 Difference]: Without dead ends: 3545 [2022-11-16 16:09:52,135 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 [2022-11-16 16:09:52,137 INFO L413 NwaCegarLoop]: 1593 mSDtfsCounter, 1471 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:09:52,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1471 Valid, 1877 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 16:09:52,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3545 states. [2022-11-16 16:09:52,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3545 to 3501. [2022-11-16 16:09:52,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3501 states, 2156 states have (on average 1.3418367346938775) internal successors, (2893), 2286 states have internal predecessors, (2893), 1036 states have call successors, (1036), 317 states have call predecessors, (1036), 308 states have return successors, (1037), 951 states have call predecessors, (1037), 1035 states have call successors, (1037) [2022-11-16 16:09:52,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 4966 transitions. [2022-11-16 16:09:52,362 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 4966 transitions. Word has length 128 [2022-11-16 16:09:52,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:09:52,363 INFO L495 AbstractCegarLoop]: Abstraction has 3501 states and 4966 transitions. [2022-11-16 16:09:52,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 16:09:52,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 4966 transitions. [2022-11-16 16:09:52,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-16 16:09:52,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:09:52,368 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-16 16:09:52,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:09:52,370 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:09:52,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:09:52,371 INFO L85 PathProgramCache]: Analyzing trace with hash -714604438, now seen corresponding path program 1 times [2022-11-16 16:09:52,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:09:52,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022225813] [2022-11-16 16:09:52,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:09:52,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:09:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:09:53,597 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-11-16 16:09:53,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:09:53,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022225813] [2022-11-16 16:09:53,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022225813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:09:53,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:09:53,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:09:53,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038045546] [2022-11-16 16:09:53,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:09:53,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:09:53,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:09:53,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:09:53,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:09:53,603 INFO L87 Difference]: Start difference. First operand 3501 states and 4966 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 16:09:57,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:09:57,760 INFO L93 Difference]: Finished difference Result 6980 states and 9895 transitions. [2022-11-16 16:09:57,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:09:57,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 164 [2022-11-16 16:09:57,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:09:57,792 INFO L225 Difference]: With dead ends: 6980 [2022-11-16 16:09:57,792 INFO L226 Difference]: Without dead ends: 3507 [2022-11-16 16:09:57,813 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 [2022-11-16 16:09:57,814 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 1733 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:09:57,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 1544 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-16 16:09:57,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3507 states. [2022-11-16 16:09:58,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3507 to 3507. [2022-11-16 16:09:58,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 2161 states have (on average 1.3373438223044887) internal successors, (2890), 2287 states have internal predecessors, (2890), 1034 states have call successors, (1034), 320 states have call predecessors, (1034), 311 states have return successors, (1035), 953 states have call predecessors, (1035), 1033 states have call successors, (1035) [2022-11-16 16:09:58,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 4959 transitions. [2022-11-16 16:09:58,203 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 4959 transitions. Word has length 164 [2022-11-16 16:09:58,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:09:58,205 INFO L495 AbstractCegarLoop]: Abstraction has 3507 states and 4959 transitions. [2022-11-16 16:09:58,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 16:09:58,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 4959 transitions. [2022-11-16 16:09:58,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-16 16:09:58,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:09:58,213 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-16 16:09:58,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 16:09:58,215 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:09:58,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:09:58,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1577928278, now seen corresponding path program 1 times [2022-11-16 16:09:58,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:09:58,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623746027] [2022-11-16 16:09:58,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:09:58,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:09:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:09:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-11-16 16:09:59,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:09:59,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623746027] [2022-11-16 16:09:59,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623746027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:09:59,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:09:59,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:09:59,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249667965] [2022-11-16 16:09:59,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:09:59,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:09:59,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:09:59,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:09:59,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:09:59,398 INFO L87 Difference]: Start difference. First operand 3507 states and 4959 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 16:10:01,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:10:03,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:03,498 INFO L93 Difference]: Finished difference Result 6972 states and 9863 transitions. [2022-11-16 16:10:03,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:10:03,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 163 [2022-11-16 16:10:03,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:03,524 INFO L225 Difference]: With dead ends: 6972 [2022-11-16 16:10:03,524 INFO L226 Difference]: Without dead ends: 3503 [2022-11-16 16:10:03,539 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 [2022-11-16 16:10:03,541 INFO L413 NwaCegarLoop]: 1528 mSDtfsCounter, 1685 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:03,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 1606 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-16 16:10:03,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3503 states. [2022-11-16 16:10:03,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3503 to 3503. [2022-11-16 16:10:03,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3503 states, 2161 states have (on average 1.3354928273947246) internal successors, (2886), 2283 states have internal predecessors, (2886), 1030 states have call successors, (1030), 320 states have call predecessors, (1030), 311 states have return successors, (1031), 953 states have call predecessors, (1031), 1029 states have call successors, (1031) [2022-11-16 16:10:03,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3503 states to 3503 states and 4947 transitions. [2022-11-16 16:10:03,808 INFO L78 Accepts]: Start accepts. Automaton has 3503 states and 4947 transitions. Word has length 163 [2022-11-16 16:10:03,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:03,809 INFO L495 AbstractCegarLoop]: Abstraction has 3503 states and 4947 transitions. [2022-11-16 16:10:03,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 16:10:03,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3503 states and 4947 transitions. [2022-11-16 16:10:03,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-16 16:10:03,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:03,815 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-16 16:10:03,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 16:10:03,815 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:10:03,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:03,816 INFO L85 PathProgramCache]: Analyzing trace with hash 477685154, now seen corresponding path program 1 times [2022-11-16 16:10:03,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:03,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637605087] [2022-11-16 16:10:03,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:03,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:04,748 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-11-16 16:10:04,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:04,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637605087] [2022-11-16 16:10:04,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637605087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:04,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:04,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:10:04,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497171606] [2022-11-16 16:10:04,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:04,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:10:04,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:04,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:10:04,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:10:04,752 INFO L87 Difference]: Start difference. First operand 3503 states and 4947 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 16:10:06,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:10:08,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:08,198 INFO L93 Difference]: Finished difference Result 6964 states and 9839 transitions. [2022-11-16 16:10:08,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:10:08,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 162 [2022-11-16 16:10:08,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:08,222 INFO L225 Difference]: With dead ends: 6964 [2022-11-16 16:10:08,222 INFO L226 Difference]: Without dead ends: 3499 [2022-11-16 16:10:08,236 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 [2022-11-16 16:10:08,237 INFO L413 NwaCegarLoop]: 1525 mSDtfsCounter, 1727 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 1538 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:08,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1727 Valid, 1538 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-16 16:10:08,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3499 states. [2022-11-16 16:10:08,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3499 to 3499. [2022-11-16 16:10:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3499 states, 2161 states have (on average 1.3336418324849606) internal successors, (2882), 2279 states have internal predecessors, (2882), 1026 states have call successors, (1026), 320 states have call predecessors, (1026), 311 states have return successors, (1027), 953 states have call predecessors, (1027), 1025 states have call successors, (1027) [2022-11-16 16:10:08,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3499 states to 3499 states and 4935 transitions. [2022-11-16 16:10:08,525 INFO L78 Accepts]: Start accepts. Automaton has 3499 states and 4935 transitions. Word has length 162 [2022-11-16 16:10:08,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:08,525 INFO L495 AbstractCegarLoop]: Abstraction has 3499 states and 4935 transitions. [2022-11-16 16:10:08,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 16:10:08,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3499 states and 4935 transitions. [2022-11-16 16:10:08,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-16 16:10:08,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:08,532 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-16 16:10:08,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 16:10:08,532 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:10:08,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:08,533 INFO L85 PathProgramCache]: Analyzing trace with hash -473363330, now seen corresponding path program 1 times [2022-11-16 16:10:08,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:08,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048921330] [2022-11-16 16:10:08,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:08,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:09,430 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-16 16:10:09,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:09,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048921330] [2022-11-16 16:10:09,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048921330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:09,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:09,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:10:09,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345553964] [2022-11-16 16:10:09,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:09,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:10:09,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:09,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:10:09,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:10:09,435 INFO L87 Difference]: Start difference. First operand 3499 states and 4935 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 16:10:10,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:10:11,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:10:20,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:20,450 INFO L93 Difference]: Finished difference Result 13858 states and 19847 transitions. [2022-11-16 16:10:20,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:10:20,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 161 [2022-11-16 16:10:20,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:20,530 INFO L225 Difference]: With dead ends: 13858 [2022-11-16 16:10:20,530 INFO L226 Difference]: Without dead ends: 10397 [2022-11-16 16:10:20,552 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 [2022-11-16 16:10:20,553 INFO L413 NwaCegarLoop]: 2259 mSDtfsCounter, 4313 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4313 SdHoareTripleChecker+Valid, 4596 SdHoareTripleChecker+Invalid, 2072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 727 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:20,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4313 Valid, 4596 Invalid, 2072 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [727 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2022-11-16 16:10:20,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10397 states. [2022-11-16 16:10:21,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10397 to 10339. [2022-11-16 16:10:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10339 states, 6409 states have (on average 1.3328132313933532) internal successors, (8542), 6735 states have internal predecessors, (8542), 3022 states have call successors, (3022), 932 states have call predecessors, (3022), 907 states have return successors, (3291), 2813 states have call predecessors, (3291), 3021 states have call successors, (3291) [2022-11-16 16:10:21,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10339 states to 10339 states and 14855 transitions. [2022-11-16 16:10:21,775 INFO L78 Accepts]: Start accepts. Automaton has 10339 states and 14855 transitions. Word has length 161 [2022-11-16 16:10:21,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:21,776 INFO L495 AbstractCegarLoop]: Abstraction has 10339 states and 14855 transitions. [2022-11-16 16:10:21,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 16:10:21,776 INFO L276 IsEmpty]: Start isEmpty. Operand 10339 states and 14855 transitions. [2022-11-16 16:10:21,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-16 16:10:21,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:21,781 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-16 16:10:21,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 16:10:21,782 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:10:21,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:21,782 INFO L85 PathProgramCache]: Analyzing trace with hash -974927109, now seen corresponding path program 1 times [2022-11-16 16:10:21,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:21,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189123952] [2022-11-16 16:10:21,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:21,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:22,675 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-16 16:10:22,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:22,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189123952] [2022-11-16 16:10:22,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189123952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:22,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:22,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:10:22,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985366768] [2022-11-16 16:10:22,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:22,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:10:22,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:22,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:10:22,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:10:22,679 INFO L87 Difference]: Start difference. First operand 10339 states and 14855 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 16:10:31,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:31,843 INFO L93 Difference]: Finished difference Result 41202 states and 60415 transitions. [2022-11-16 16:10:31,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:10:31,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 158 [2022-11-16 16:10:31,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:32,050 INFO L225 Difference]: With dead ends: 41202 [2022-11-16 16:10:32,051 INFO L226 Difference]: Without dead ends: 30901 [2022-11-16 16:10:32,110 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 [2022-11-16 16:10:32,111 INFO L413 NwaCegarLoop]: 2264 mSDtfsCounter, 4319 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4319 SdHoareTripleChecker+Valid, 4601 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 727 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:32,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4319 Valid, 4601 Invalid, 2075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [727 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-16 16:10:32,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30901 states. [2022-11-16 16:10:35,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30901 to 30859. [2022-11-16 16:10:35,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30859 states, 19169 states have (on average 1.3320465334654912) internal successors, (25534), 20103 states have internal predecessors, (25534), 8994 states have call successors, (8994), 2768 states have call predecessors, (8994), 2695 states have return successors, (10987), 8393 states have call predecessors, (10987), 8993 states have call successors, (10987) [2022-11-16 16:10:35,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30859 states to 30859 states and 45515 transitions. [2022-11-16 16:10:35,447 INFO L78 Accepts]: Start accepts. Automaton has 30859 states and 45515 transitions. Word has length 158 [2022-11-16 16:10:35,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:35,448 INFO L495 AbstractCegarLoop]: Abstraction has 30859 states and 45515 transitions. [2022-11-16 16:10:35,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 16:10:35,449 INFO L276 IsEmpty]: Start isEmpty. Operand 30859 states and 45515 transitions. [2022-11-16 16:10:35,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-16 16:10:35,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:35,453 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-16 16:10:35,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 16:10:35,454 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:10:35,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:35,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1948356886, now seen corresponding path program 1 times [2022-11-16 16:10:35,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:35,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248041395] [2022-11-16 16:10:35,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:35,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:36,319 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-16 16:10:36,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:36,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248041395] [2022-11-16 16:10:36,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248041395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:36,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:36,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:10:36,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372011472] [2022-11-16 16:10:36,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:36,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:10:36,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:36,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:10:36,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:10:36,323 INFO L87 Difference]: Start difference. First operand 30859 states and 45515 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 16:10:37,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:10:52,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:52,751 INFO L93 Difference]: Finished difference Result 123234 states and 185127 transitions. [2022-11-16 16:10:52,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:10:52,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 159 [2022-11-16 16:10:52,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:53,694 INFO L225 Difference]: With dead ends: 123234 [2022-11-16 16:10:53,697 INFO L226 Difference]: Without dead ends: 92413 [2022-11-16 16:10:53,860 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 [2022-11-16 16:10:53,864 INFO L413 NwaCegarLoop]: 2253 mSDtfsCounter, 4317 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4317 SdHoareTripleChecker+Valid, 4590 SdHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 727 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:53,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4317 Valid, 4590 Invalid, 2071 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [727 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-11-16 16:10:53,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92413 states. [2022-11-16 16:11:02,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92413 to 92371. [2022-11-16 16:11:02,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92371 states, 57449 states have (on average 1.3308151577921288) internal successors, (76454), 60159 states have internal predecessors, (76454), 26862 states have call successors, (26862), 8276 states have call predecessors, (26862), 8059 states have return successors, (36195), 25133 states have call predecessors, (36195), 26861 states have call successors, (36195) [2022-11-16 16:11:03,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92371 states to 92371 states and 139511 transitions. [2022-11-16 16:11:03,471 INFO L78 Accepts]: Start accepts. Automaton has 92371 states and 139511 transitions. Word has length 159 [2022-11-16 16:11:03,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:11:03,472 INFO L495 AbstractCegarLoop]: Abstraction has 92371 states and 139511 transitions. [2022-11-16 16:11:03,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 16:11:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 92371 states and 139511 transitions. [2022-11-16 16:11:03,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-16 16:11:03,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:11:03,477 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-16 16:11:03,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 16:11:03,477 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:11:03,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:11:03,478 INFO L85 PathProgramCache]: Analyzing trace with hash 441461618, now seen corresponding path program 1 times [2022-11-16 16:11:03,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:11:03,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507367223] [2022-11-16 16:11:03,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:11:03,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:11:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:11:04,817 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-11-16 16:11:04,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:11:04,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507367223] [2022-11-16 16:11:04,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507367223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:11:04,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:11:04,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:11:04,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142602452] [2022-11-16 16:11:04,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:11:04,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:11:04,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:11:04,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:11:04,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:11:04,822 INFO L87 Difference]: Start difference. First operand 92371 states and 139511 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-16 16:11:06,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:11:07,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 16:11:15,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:11:15,259 INFO L93 Difference]: Finished difference Result 180816 states and 271661 transitions. [2022-11-16 16:11:15,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:11:15,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 165 [2022-11-16 16:11:15,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:11:16,036 INFO L225 Difference]: With dead ends: 180816 [2022-11-16 16:11:16,036 INFO L226 Difference]: Without dead ends: 88483 [2022-11-16 16:11:16,451 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 [2022-11-16 16:11:16,452 INFO L413 NwaCegarLoop]: 1496 mSDtfsCounter, 1695 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:11:16,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 1509 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-16 16:11:16,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88483 states.