./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 006aa960ed1622b337a2cda4a1ad6a685b212b2d57c6c6998da1e861381a253d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:29:07,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:29:07,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:29:07,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:29:07,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:29:07,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:29:07,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:29:07,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:29:07,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:29:07,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:29:07,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:29:07,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:29:07,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:29:07,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:29:07,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:29:07,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:29:07,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:29:07,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:29:07,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:29:07,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:29:07,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:29:07,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:29:07,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:29:07,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:29:07,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:29:07,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:29:07,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:29:07,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:29:07,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:29:07,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:29:07,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:29:07,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:29:07,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:29:07,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:29:07,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:29:07,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:29:07,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:29:07,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:29:07,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:29:07,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:29:07,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:29:07,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:29:07,459 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:29:07,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:29:07,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:29:07,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:29:07,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:29:07,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:29:07,465 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:29:07,465 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:29:07,465 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:29:07,465 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:29:07,467 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:29:07,467 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:29:07,467 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:29:07,468 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:29:07,468 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:29:07,468 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:29:07,469 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:29:07,469 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:29:07,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:29:07,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:29:07,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:29:07,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:29:07,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:29:07,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:29:07,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:29:07,472 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:29:07,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:29:07,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:29:07,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:29:07,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:29:07,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:29:07,475 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:29:07,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:29:07,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:29:07,476 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:29:07,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:29:07,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:29:07,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:29:07,478 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_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 006aa960ed1622b337a2cda4a1ad6a685b212b2d57c6c6998da1e861381a253d [2022-11-03 02:29:07,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:29:07,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:29:07,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:29:07,875 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:29:07,876 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:29:07,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-11-03 02:29:07,956 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/data/38541a295/07a3b33295134bceb35699af6fcea58a/FLAG3ed652b3a [2022-11-03 02:29:08,936 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:29:08,937 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-11-03 02:29:08,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/data/38541a295/07a3b33295134bceb35699af6fcea58a/FLAG3ed652b3a [2022-11-03 02:29:09,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/data/38541a295/07a3b33295134bceb35699af6fcea58a [2022-11-03 02:29:09,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:29:09,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:29:09,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:29:09,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:29:09,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:29:09,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:29:09" (1/1) ... [2022-11-03 02:29:09,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1050c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:09, skipping insertion in model container [2022-11-03 02:29:09,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:29:09" (1/1) ... [2022-11-03 02:29:09,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:29:09,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:29:11,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[171620,171633] [2022-11-03 02:29:12,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:29:12,832 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:29:12,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[171620,171633] [2022-11-03 02:29:13,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:29:13,660 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:29:13,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:13 WrapperNode [2022-11-03 02:29:13,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:29:13,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:29:13,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:29:13,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:29:13,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:13" (1/1) ... [2022-11-03 02:29:13,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:13" (1/1) ... [2022-11-03 02:29:14,068 INFO L138 Inliner]: procedures = 318, calls = 3918, calls flagged for inlining = 135, calls inlined = 109, statements flattened = 6384 [2022-11-03 02:29:14,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:29:14,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:29:14,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:29:14,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:29:14,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:13" (1/1) ... [2022-11-03 02:29:14,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:13" (1/1) ... [2022-11-03 02:29:14,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:13" (1/1) ... [2022-11-03 02:29:14,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:13" (1/1) ... [2022-11-03 02:29:14,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:13" (1/1) ... [2022-11-03 02:29:14,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:13" (1/1) ... [2022-11-03 02:29:14,472 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:13" (1/1) ... [2022-11-03 02:29:14,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:13" (1/1) ... [2022-11-03 02:29:14,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:29:14,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:29:14,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:29:14,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:29:14,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:13" (1/1) ... [2022-11-03 02:29:14,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:29:14,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:29:14,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:29:14,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:29:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2022-11-03 02:29:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2022-11-03 02:29:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 02:29:14,656 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 02:29:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2022-11-03 02:29:14,656 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2022-11-03 02:29:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2022-11-03 02:29:14,656 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2022-11-03 02:29:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2022-11-03 02:29:14,657 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2022-11-03 02:29:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:29:14,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:29:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2022-11-03 02:29:14,657 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2022-11-03 02:29:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-03 02:29:14,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-03 02:29:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2022-11-03 02:29:14,658 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2022-11-03 02:29:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 02:29:14,658 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 02:29:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2022-11-03 02:29:14,658 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2022-11-03 02:29:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:29:14,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:29:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-03 02:29:14,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-03 02:29:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2022-11-03 02:29:14,659 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2022-11-03 02:29:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2022-11-03 02:29:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2022-11-03 02:29:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2022-11-03 02:29:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2022-11-03 02:29:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2022-11-03 02:29:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2022-11-03 02:29:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2022-11-03 02:29:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2022-11-03 02:29:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:29:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:29:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2022-11-03 02:29:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2022-11-03 02:29:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:29:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:29:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:29:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:29:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2022-11-03 02:29:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2022-11-03 02:29:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:29:14,663 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:29:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_43 [2022-11-03 02:29:14,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_43 [2022-11-03 02:29:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-03 02:29:14,663 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-03 02:29:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2022-11-03 02:29:14,664 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2022-11-03 02:29:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-03 02:29:14,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-03 02:29:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-03 02:29:14,664 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-03 02:29:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2022-11-03 02:29:14,664 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2022-11-03 02:29:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:29:14,665 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:29:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2022-11-03 02:29:14,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2022-11-03 02:29:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-11-03 02:29:14,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-11-03 02:29:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2022-11-03 02:29:14,666 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2022-11-03 02:29:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-11-03 02:29:14,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-11-03 02:29:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2022-11-03 02:29:14,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2022-11-03 02:29:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-11-03 02:29:14,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-11-03 02:29:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-11-03 02:29:14,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-11-03 02:29:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:29:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-11-03 02:29:14,667 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-11-03 02:29:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2022-11-03 02:29:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2022-11-03 02:29:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 02:29:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:29:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2022-11-03 02:29:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2022-11-03 02:29:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2022-11-03 02:29:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2022-11-03 02:29:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2022-11-03 02:29:14,669 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2022-11-03 02:29:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_18 [2022-11-03 02:29:14,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_18 [2022-11-03 02:29:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2022-11-03 02:29:14,669 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2022-11-03 02:29:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2022-11-03 02:29:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2022-11-03 02:29:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2022-11-03 02:29:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2022-11-03 02:29:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:29:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:29:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2022-11-03 02:29:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2022-11-03 02:29:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:29:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure read_int_callback [2022-11-03 02:29:14,671 INFO L138 BoogieDeclarations]: Found implementation of procedure read_int_callback [2022-11-03 02:29:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-03 02:29:14,671 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-03 02:29:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:29:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-03 02:29:14,672 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-03 02:29:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_statmsg [2022-11-03 02:29:14,672 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_statmsg [2022-11-03 02:29:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-03 02:29:14,672 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-03 02:29:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure read_ctrl_callback [2022-11-03 02:29:14,672 INFO L138 BoogieDeclarations]: Found implementation of procedure read_ctrl_callback [2022-11-03 02:29:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:29:14,673 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:29:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2022-11-03 02:29:14,673 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2022-11-03 02:29:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:29:14,673 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:29:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2022-11-03 02:29:14,674 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2022-11-03 02:29:14,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:29:14,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:29:14,674 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2022-11-03 02:29:14,674 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2022-11-03 02:29:14,674 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:29:14,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:29:14,675 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-11-03 02:29:14,675 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-11-03 02:29:14,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-11-03 02:29:14,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-11-03 02:29:14,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2022-11-03 02:29:14,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2022-11-03 02:29:14,675 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2022-11-03 02:29:14,676 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2022-11-03 02:29:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:29:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2022-11-03 02:29:14,676 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2022-11-03 02:29:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-03 02:29:14,676 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-03 02:29:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 02:29:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 02:29:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2022-11-03 02:29:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2022-11-03 02:29:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-03 02:29:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-03 02:29:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2022-11-03 02:29:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2022-11-03 02:29:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_hi_schedule [2022-11-03 02:29:14,678 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_hi_schedule [2022-11-03 02:29:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2022-11-03 02:29:14,678 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2022-11-03 02:29:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:29:14,678 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:29:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:29:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2022-11-03 02:29:14,679 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2022-11-03 02:29:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:29:14,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:29:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2022-11-03 02:29:14,679 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2022-11-03 02:29:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:29:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:29:14,679 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:29:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-11-03 02:29:14,680 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-11-03 02:29:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2022-11-03 02:29:14,680 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2022-11-03 02:29:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2022-11-03 02:29:14,680 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2022-11-03 02:29:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2022-11-03 02:29:14,680 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2022-11-03 02:29:14,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:29:14,681 INFO L130 BoogieDeclarations]: Found specification of procedure write_command_callback [2022-11-03 02:29:14,681 INFO L138 BoogieDeclarations]: Found implementation of procedure write_command_callback [2022-11-03 02:29:14,681 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2022-11-03 02:29:14,681 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2022-11-03 02:29:14,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:29:14,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:29:14,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:29:14,682 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:29:14,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:29:14,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:29:14,682 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2022-11-03 02:29:14,682 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2022-11-03 02:29:14,683 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-03 02:29:14,683 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-03 02:29:14,683 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-03 02:29:14,683 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-03 02:29:14,684 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 02:29:14,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 02:29:14,684 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2022-11-03 02:29:14,684 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2022-11-03 02:29:14,684 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 02:29:14,684 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 02:29:14,684 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-03 02:29:14,685 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-03 02:29:14,685 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2022-11-03 02:29:14,685 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2022-11-03 02:29:14,685 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-03 02:29:14,685 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-03 02:29:14,685 INFO L130 BoogieDeclarations]: Found specification of procedure write_ctrl_callback [2022-11-03 02:29:14,685 INFO L138 BoogieDeclarations]: Found implementation of procedure write_ctrl_callback [2022-11-03 02:29:14,686 INFO L130 BoogieDeclarations]: Found specification of procedure read_iso_callback [2022-11-03 02:29:14,686 INFO L138 BoogieDeclarations]: Found implementation of procedure read_iso_callback [2022-11-03 02:29:14,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_41 [2022-11-03 02:29:14,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_41 [2022-11-03 02:29:14,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-03 02:29:14,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-03 02:29:14,686 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-03 02:29:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-03 02:29:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:29:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2022-11-03 02:29:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2022-11-03 02:29:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2022-11-03 02:29:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2022-11-03 02:29:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 02:29:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 02:29:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:29:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:29:15,562 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:29:15,566 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:29:15,851 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:29:17,359 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-03 02:29:23,648 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:29:25,887 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:29:25,888 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:29:25,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:29:25 BoogieIcfgContainer [2022-11-03 02:29:25,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:29:25,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:29:25,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:29:25,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:29:25,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:29:09" (1/3) ... [2022-11-03 02:29:25,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2801e5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:29:25, skipping insertion in model container [2022-11-03 02:29:25,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:29:13" (2/3) ... [2022-11-03 02:29:25,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2801e5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:29:25, skipping insertion in model container [2022-11-03 02:29:25,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:29:25" (3/3) ... [2022-11-03 02:29:25,907 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-11-03 02:29:25,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:29:25,928 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:29:26,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:29:26,056 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;@c3ca87b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:29:26,057 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:29:26,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 1630 states, 985 states have (on average 1.3512690355329948) internal successors, (1331), 1060 states have internal predecessors, (1331), 541 states have call successors, (541), 104 states have call predecessors, (541), 102 states have return successors, (531), 502 states have call predecessors, (531), 531 states have call successors, (531) [2022-11-03 02:29:26,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-03 02:29:26,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:26,107 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:26,108 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:26,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:26,116 INFO L85 PathProgramCache]: Analyzing trace with hash 54119081, now seen corresponding path program 1 times [2022-11-03 02:29:26,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:26,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168772245] [2022-11-03 02:29:26,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:26,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 02:29:27,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:27,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168772245] [2022-11-03 02:29:27,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168772245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:27,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:27,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:27,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091877103] [2022-11-03 02:29:27,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:27,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:27,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:27,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:27,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:27,375 INFO L87 Difference]: Start difference. First operand has 1630 states, 985 states have (on average 1.3512690355329948) internal successors, (1331), 1060 states have internal predecessors, (1331), 541 states have call successors, (541), 104 states have call predecessors, (541), 102 states have return successors, (531), 502 states have call predecessors, (531), 531 states have call successors, (531) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:29:30,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:30,742 INFO L93 Difference]: Finished difference Result 4800 states and 7077 transitions. [2022-11-03 02:29:30,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:30,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 54 [2022-11-03 02:29:30,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:30,816 INFO L225 Difference]: With dead ends: 4800 [2022-11-03 02:29:30,816 INFO L226 Difference]: Without dead ends: 3157 [2022-11-03 02:29:30,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:30,844 INFO L413 NwaCegarLoop]: 2659 mSDtfsCounter, 2296 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 4788 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:30,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2296 Valid, 4788 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-03 02:29:30,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2022-11-03 02:29:31,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 3157. [2022-11-03 02:29:31,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3157 states, 1919 states have (on average 1.3397602918186555) internal successors, (2571), 2040 states have internal predecessors, (2571), 1036 states have call successors, (1036), 202 states have call predecessors, (1036), 201 states have return successors, (1031), 973 states have call predecessors, (1031), 1031 states have call successors, (1031) [2022-11-03 02:29:31,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 4638 transitions. [2022-11-03 02:29:31,159 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 4638 transitions. Word has length 54 [2022-11-03 02:29:31,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:31,161 INFO L495 AbstractCegarLoop]: Abstraction has 3157 states and 4638 transitions. [2022-11-03 02:29:31,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:29:31,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 4638 transitions. [2022-11-03 02:29:31,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-03 02:29:31,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:31,172 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:31,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:29:31,172 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:31,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:31,174 INFO L85 PathProgramCache]: Analyzing trace with hash -298896928, now seen corresponding path program 1 times [2022-11-03 02:29:31,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:31,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409050482] [2022-11-03 02:29:31,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:31,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 02:29:32,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:32,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409050482] [2022-11-03 02:29:32,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409050482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:32,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:32,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:32,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980074513] [2022-11-03 02:29:32,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:32,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:32,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:32,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:32,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:32,528 INFO L87 Difference]: Start difference. First operand 3157 states and 4638 transitions. 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, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:29:35,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:35,780 INFO L93 Difference]: Finished difference Result 6225 states and 9132 transitions. [2022-11-03 02:29:35,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:35,781 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, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 61 [2022-11-03 02:29:35,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:35,827 INFO L225 Difference]: With dead ends: 6225 [2022-11-03 02:29:35,828 INFO L226 Difference]: Without dead ends: 6222 [2022-11-03 02:29:35,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:35,839 INFO L413 NwaCegarLoop]: 2659 mSDtfsCounter, 2274 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2274 SdHoareTripleChecker+Valid, 4767 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:35,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2274 Valid, 4767 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-03 02:29:35,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6222 states. [2022-11-03 02:29:36,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6222 to 6210. [2022-11-03 02:29:36,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6210 states, 3774 states have (on average 1.338102808691044) internal successors, (5050), 4014 states have internal predecessors, (5050), 2035 states have call successors, (2035), 403 states have call predecessors, (2035), 400 states have return successors, (2030), 1910 states have call predecessors, (2030), 2030 states have call successors, (2030) [2022-11-03 02:29:36,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6210 states to 6210 states and 9115 transitions. [2022-11-03 02:29:36,231 INFO L78 Accepts]: Start accepts. Automaton has 6210 states and 9115 transitions. Word has length 61 [2022-11-03 02:29:36,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:36,232 INFO L495 AbstractCegarLoop]: Abstraction has 6210 states and 9115 transitions. [2022-11-03 02:29:36,232 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, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:29:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6210 states and 9115 transitions. [2022-11-03 02:29:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-03 02:29:36,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:36,237 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:36,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:29:36,238 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:36,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:36,249 INFO L85 PathProgramCache]: Analyzing trace with hash -676836624, now seen corresponding path program 1 times [2022-11-03 02:29:36,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:36,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380821190] [2022-11-03 02:29:36,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:36,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:37,345 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 02:29:37,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:37,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380821190] [2022-11-03 02:29:37,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380821190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:37,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:37,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:37,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084576936] [2022-11-03 02:29:37,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:37,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:37,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:37,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:37,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:37,349 INFO L87 Difference]: Start difference. First operand 6210 states and 9115 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:29:38,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:40,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:40,454 INFO L93 Difference]: Finished difference Result 9415 states and 13799 transitions. [2022-11-03 02:29:40,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:40,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 62 [2022-11-03 02:29:40,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:40,501 INFO L225 Difference]: With dead ends: 9415 [2022-11-03 02:29:40,501 INFO L226 Difference]: Without dead ends: 6239 [2022-11-03 02:29:40,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:40,526 INFO L413 NwaCegarLoop]: 2657 mSDtfsCounter, 2261 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 4765 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:40,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2261 Valid, 4765 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-03 02:29:40,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6239 states. [2022-11-03 02:29:41,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6239 to 6231. [2022-11-03 02:29:41,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6231 states, 3787 states have (on average 1.3369421705835753) internal successors, (5063), 4027 states have internal predecessors, (5063), 2037 states have call successors, (2037), 409 states have call predecessors, (2037), 406 states have return successors, (2032), 1912 states have call predecessors, (2032), 2032 states have call successors, (2032) [2022-11-03 02:29:41,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6231 states to 6231 states and 9132 transitions. [2022-11-03 02:29:41,218 INFO L78 Accepts]: Start accepts. Automaton has 6231 states and 9132 transitions. Word has length 62 [2022-11-03 02:29:41,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:41,220 INFO L495 AbstractCegarLoop]: Abstraction has 6231 states and 9132 transitions. [2022-11-03 02:29:41,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:29:41,224 INFO L276 IsEmpty]: Start isEmpty. Operand 6231 states and 9132 transitions. [2022-11-03 02:29:41,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:29:41,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:41,229 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:41,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:29:41,230 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:41,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:41,230 INFO L85 PathProgramCache]: Analyzing trace with hash 491939555, now seen corresponding path program 1 times [2022-11-03 02:29:41,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:41,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910354274] [2022-11-03 02:29:41,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:41,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:41,771 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 02:29:41,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:41,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910354274] [2022-11-03 02:29:41,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910354274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:41,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:41,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:41,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023683789] [2022-11-03 02:29:41,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:41,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:41,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:41,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:41,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:41,774 INFO L87 Difference]: Start difference. First operand 6231 states and 9132 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, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:29:44,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:44,953 INFO L93 Difference]: Finished difference Result 9265 states and 13731 transitions. [2022-11-03 02:29:44,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:44,954 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, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 63 [2022-11-03 02:29:44,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:45,023 INFO L225 Difference]: With dead ends: 9265 [2022-11-03 02:29:45,023 INFO L226 Difference]: Without dead ends: 9262 [2022-11-03 02:29:45,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:45,031 INFO L413 NwaCegarLoop]: 2657 mSDtfsCounter, 2249 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2249 SdHoareTripleChecker+Valid, 4838 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:45,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2249 Valid, 4838 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-03 02:29:45,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9262 states. [2022-11-03 02:29:45,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9262 to 9256. [2022-11-03 02:29:45,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9256 states, 5626 states have (on average 1.3373622467116957) internal successors, (7524), 5989 states have internal predecessors, (7524), 3028 states have call successors, (3028), 606 states have call predecessors, (3028), 601 states have return successors, (3171), 2837 states have call predecessors, (3171), 3023 states have call successors, (3171) [2022-11-03 02:29:45,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9256 states to 9256 states and 13723 transitions. [2022-11-03 02:29:45,657 INFO L78 Accepts]: Start accepts. Automaton has 9256 states and 13723 transitions. Word has length 63 [2022-11-03 02:29:45,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:45,659 INFO L495 AbstractCegarLoop]: Abstraction has 9256 states and 13723 transitions. [2022-11-03 02:29:45,659 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, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:29:45,660 INFO L276 IsEmpty]: Start isEmpty. Operand 9256 states and 13723 transitions. [2022-11-03 02:29:45,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-03 02:29:45,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:45,664 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:45,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:29:45,664 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:45,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:45,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1930699693, now seen corresponding path program 1 times [2022-11-03 02:29:45,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:45,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590195650] [2022-11-03 02:29:45,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:45,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:46,091 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 02:29:46,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:46,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590195650] [2022-11-03 02:29:46,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590195650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:46,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:46,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:46,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473693064] [2022-11-03 02:29:46,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:46,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:46,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:46,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:46,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:46,095 INFO L87 Difference]: Start difference. First operand 9256 states and 13723 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:29:48,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:48,007 INFO L93 Difference]: Finished difference Result 9258 states and 13724 transitions. [2022-11-03 02:29:48,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:48,008 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), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 64 [2022-11-03 02:29:48,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:48,064 INFO L225 Difference]: With dead ends: 9258 [2022-11-03 02:29:48,064 INFO L226 Difference]: Without dead ends: 9255 [2022-11-03 02:29:48,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:48,070 INFO L413 NwaCegarLoop]: 2124 mSDtfsCounter, 2337 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2337 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:48,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2337 Valid, 2124 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 02:29:48,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9255 states. [2022-11-03 02:29:48,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9255 to 9255. [2022-11-03 02:29:48,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9255 states, 5626 states have (on average 1.3371845005332386) internal successors, (7523), 5988 states have internal predecessors, (7523), 3027 states have call successors, (3027), 606 states have call predecessors, (3027), 601 states have return successors, (3171), 2837 states have call predecessors, (3171), 3023 states have call successors, (3171) [2022-11-03 02:29:48,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9255 states to 9255 states and 13721 transitions. [2022-11-03 02:29:48,725 INFO L78 Accepts]: Start accepts. Automaton has 9255 states and 13721 transitions. Word has length 64 [2022-11-03 02:29:48,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:48,725 INFO L495 AbstractCegarLoop]: Abstraction has 9255 states and 13721 transitions. [2022-11-03 02:29:48,725 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), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:29:48,726 INFO L276 IsEmpty]: Start isEmpty. Operand 9255 states and 13721 transitions. [2022-11-03 02:29:48,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-03 02:29:48,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:48,729 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:48,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:29:48,730 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:48,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:48,730 INFO L85 PathProgramCache]: Analyzing trace with hash 276899814, now seen corresponding path program 1 times [2022-11-03 02:29:48,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:48,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389394641] [2022-11-03 02:29:48,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:48,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:49,125 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 02:29:49,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:49,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389394641] [2022-11-03 02:29:49,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389394641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:49,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:49,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:49,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792949646] [2022-11-03 02:29:49,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:49,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:49,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:49,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:49,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:49,127 INFO L87 Difference]: Start difference. First operand 9255 states and 13721 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:29:50,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:50,876 INFO L93 Difference]: Finished difference Result 9257 states and 13722 transitions. [2022-11-03 02:29:50,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:50,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 65 [2022-11-03 02:29:50,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:50,927 INFO L225 Difference]: With dead ends: 9257 [2022-11-03 02:29:50,927 INFO L226 Difference]: Without dead ends: 9214 [2022-11-03 02:29:50,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:50,936 INFO L413 NwaCegarLoop]: 2123 mSDtfsCounter, 2334 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 2123 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:50,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2334 Valid, 2123 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 02:29:50,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9214 states. [2022-11-03 02:29:51,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9214 to 9214. [2022-11-03 02:29:51,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9214 states, 5598 states have (on average 1.3372633083244017) internal successors, (7486), 5959 states have internal predecessors, (7486), 3016 states have call successors, (3016), 604 states have call predecessors, (3016), 599 states have return successors, (3161), 2827 states have call predecessors, (3161), 3013 states have call successors, (3161) [2022-11-03 02:29:51,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9214 states to 9214 states and 13663 transitions. [2022-11-03 02:29:51,617 INFO L78 Accepts]: Start accepts. Automaton has 9214 states and 13663 transitions. Word has length 65 [2022-11-03 02:29:51,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:51,618 INFO L495 AbstractCegarLoop]: Abstraction has 9214 states and 13663 transitions. [2022-11-03 02:29:51,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 02:29:51,618 INFO L276 IsEmpty]: Start isEmpty. Operand 9214 states and 13663 transitions. [2022-11-03 02:29:51,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-03 02:29:51,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:51,652 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:51,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:29:51,652 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:51,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:51,653 INFO L85 PathProgramCache]: Analyzing trace with hash 49550610, now seen corresponding path program 1 times [2022-11-03 02:29:51,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:51,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786381628] [2022-11-03 02:29:51,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:51,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:52,198 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-03 02:29:52,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:52,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786381628] [2022-11-03 02:29:52,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786381628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:52,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:52,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:52,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398966009] [2022-11-03 02:29:52,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:52,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:52,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:52,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:52,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:52,202 INFO L87 Difference]: Start difference. First operand 9214 states and 13663 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 02:29:53,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:56,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:56,037 INFO L93 Difference]: Finished difference Result 26647 states and 39519 transitions. [2022-11-03 02:29:56,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:56,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 158 [2022-11-03 02:29:56,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:56,145 INFO L225 Difference]: With dead ends: 26647 [2022-11-03 02:29:56,146 INFO L226 Difference]: Without dead ends: 17446 [2022-11-03 02:29:56,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:56,207 INFO L413 NwaCegarLoop]: 2773 mSDtfsCounter, 2081 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 4860 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:56,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 4860 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-03 02:29:56,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17446 states. [2022-11-03 02:29:57,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17446 to 17434. [2022-11-03 02:29:57,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17434 states, 10567 states have (on average 1.3380335005204884) internal successors, (14139), 11267 states have internal predecessors, (14139), 5717 states have call successors, (5717), 1156 states have call predecessors, (5717), 1149 states have return successors, (6000), 5352 states have call predecessors, (6000), 5714 states have call successors, (6000) [2022-11-03 02:29:57,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17434 states to 17434 states and 25856 transitions. [2022-11-03 02:29:57,628 INFO L78 Accepts]: Start accepts. Automaton has 17434 states and 25856 transitions. Word has length 158 [2022-11-03 02:29:57,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:57,629 INFO L495 AbstractCegarLoop]: Abstraction has 17434 states and 25856 transitions. [2022-11-03 02:29:57,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 02:29:57,629 INFO L276 IsEmpty]: Start isEmpty. Operand 17434 states and 25856 transitions. [2022-11-03 02:29:57,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-03 02:29:57,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:57,684 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:57,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:29:57,685 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:57,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:57,685 INFO L85 PathProgramCache]: Analyzing trace with hash -734531992, now seen corresponding path program 1 times [2022-11-03 02:29:57,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:57,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224525106] [2022-11-03 02:29:57,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:57,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:58,371 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-11-03 02:29:58,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:58,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224525106] [2022-11-03 02:29:58,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224525106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:58,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:58,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:29:58,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064426605] [2022-11-03 02:29:58,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:58,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:29:58,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:58,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:29:58,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:29:58,374 INFO L87 Difference]: Start difference. First operand 17434 states and 25856 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:29:59,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:02,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:02,591 INFO L93 Difference]: Finished difference Result 36655 states and 54756 transitions. [2022-11-03 02:30:02,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:30:02,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 184 [2022-11-03 02:30:02,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:02,709 INFO L225 Difference]: With dead ends: 36655 [2022-11-03 02:30:02,709 INFO L226 Difference]: Without dead ends: 19234 [2022-11-03 02:30:02,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:30:02,799 INFO L413 NwaCegarLoop]: 2559 mSDtfsCounter, 2904 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 4790 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:02,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2904 Valid, 4790 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-03 02:30:02,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19234 states. [2022-11-03 02:30:04,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19234 to 17440. [2022-11-03 02:30:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17440 states, 10573 states have (on average 1.3374633500425612) internal successors, (14141), 11273 states have internal predecessors, (14141), 5717 states have call successors, (5717), 1156 states have call predecessors, (5717), 1149 states have return successors, (6000), 5352 states have call predecessors, (6000), 5714 states have call successors, (6000) [2022-11-03 02:30:04,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17440 states to 17440 states and 25858 transitions. [2022-11-03 02:30:04,291 INFO L78 Accepts]: Start accepts. Automaton has 17440 states and 25858 transitions. Word has length 184 [2022-11-03 02:30:04,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:30:04,292 INFO L495 AbstractCegarLoop]: Abstraction has 17440 states and 25858 transitions. [2022-11-03 02:30:04,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:30:04,292 INFO L276 IsEmpty]: Start isEmpty. Operand 17440 states and 25858 transitions. [2022-11-03 02:30:04,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-03 02:30:04,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:04,343 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:30:04,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:30:04,344 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:04,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:04,344 INFO L85 PathProgramCache]: Analyzing trace with hash 2038589352, now seen corresponding path program 1 times [2022-11-03 02:30:04,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:30:04,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962500253] [2022-11-03 02:30:04,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:04,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:30:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:05,069 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-03 02:30:05,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:30:05,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962500253] [2022-11-03 02:30:05,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962500253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:30:05,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:30:05,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:30:05,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029942825] [2022-11-03 02:30:05,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:30:05,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:30:05,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:30:05,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:30:05,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:30:05,073 INFO L87 Difference]: Start difference. First operand 17440 states and 25858 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 02:30:06,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:07,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:11,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:11,751 INFO L93 Difference]: Finished difference Result 43658 states and 64718 transitions. [2022-11-03 02:30:11,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:30:11,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 186 [2022-11-03 02:30:11,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:11,902 INFO L225 Difference]: With dead ends: 43658 [2022-11-03 02:30:11,902 INFO L226 Difference]: Without dead ends: 26231 [2022-11-03 02:30:11,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:30:11,977 INFO L413 NwaCegarLoop]: 4169 mSDtfsCounter, 2326 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2326 SdHoareTripleChecker+Valid, 6277 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:11,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2326 Valid, 6277 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 02:30:12,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26231 states. [2022-11-03 02:30:13,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26231 to 26211. [2022-11-03 02:30:13,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26211 states, 15887 states have (on average 1.3374457103292) internal successors, (21248), 16939 states have internal predecessors, (21248), 8591 states have call successors, (8591), 1742 states have call predecessors, (8591), 1732 states have return successors, (9017), 8039 states have call predecessors, (9017), 8588 states have call successors, (9017) [2022-11-03 02:30:14,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26211 states to 26211 states and 38856 transitions. [2022-11-03 02:30:14,077 INFO L78 Accepts]: Start accepts. Automaton has 26211 states and 38856 transitions. Word has length 186 [2022-11-03 02:30:14,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:30:14,078 INFO L495 AbstractCegarLoop]: Abstraction has 26211 states and 38856 transitions. [2022-11-03 02:30:14,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 02:30:14,079 INFO L276 IsEmpty]: Start isEmpty. Operand 26211 states and 38856 transitions. [2022-11-03 02:30:14,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-03 02:30:14,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:14,180 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:30:14,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:30:14,180 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:14,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:14,181 INFO L85 PathProgramCache]: Analyzing trace with hash 265421017, now seen corresponding path program 1 times [2022-11-03 02:30:14,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:30:14,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126385570] [2022-11-03 02:30:14,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:14,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:30:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:15,035 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-11-03 02:30:15,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:30:15,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126385570] [2022-11-03 02:30:15,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126385570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:30:15,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:30:15,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:30:15,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776932662] [2022-11-03 02:30:15,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:30:15,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:30:15,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:30:15,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:30:15,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:30:15,038 INFO L87 Difference]: Start difference. First operand 26211 states and 38856 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 02:30:16,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:20,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:20,092 INFO L93 Difference]: Finished difference Result 44221 states and 66577 transitions. [2022-11-03 02:30:20,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:30:20,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 189 [2022-11-03 02:30:20,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:20,276 INFO L225 Difference]: With dead ends: 44221 [2022-11-03 02:30:20,277 INFO L226 Difference]: Without dead ends: 26409 [2022-11-03 02:30:20,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:30:20,372 INFO L413 NwaCegarLoop]: 2124 mSDtfsCounter, 8 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4242 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:20,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4242 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-03 02:30:20,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26409 states. [2022-11-03 02:30:22,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26409 to 26229. [2022-11-03 02:30:22,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26229 states, 15905 states have (on average 1.337063816409934) internal successors, (21266), 16957 states have internal predecessors, (21266), 8591 states have call successors, (8591), 1742 states have call predecessors, (8591), 1732 states have return successors, (9017), 8039 states have call predecessors, (9017), 8588 states have call successors, (9017) [2022-11-03 02:30:22,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26229 states to 26229 states and 38874 transitions. [2022-11-03 02:30:22,600 INFO L78 Accepts]: Start accepts. Automaton has 26229 states and 38874 transitions. Word has length 189 [2022-11-03 02:30:22,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:30:22,601 INFO L495 AbstractCegarLoop]: Abstraction has 26229 states and 38874 transitions. [2022-11-03 02:30:22,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 02:30:22,602 INFO L276 IsEmpty]: Start isEmpty. Operand 26229 states and 38874 transitions. [2022-11-03 02:30:22,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-03 02:30:22,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:22,692 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:30:22,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:30:22,692 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:22,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:22,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1261537175, now seen corresponding path program 1 times [2022-11-03 02:30:22,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:30:22,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348452377] [2022-11-03 02:30:22,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:22,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:30:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:23,610 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-11-03 02:30:23,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:30:23,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348452377] [2022-11-03 02:30:23,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348452377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:30:23,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:30:23,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:30:23,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693842522] [2022-11-03 02:30:23,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:30:23,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:30:23,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:30:23,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:30:23,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:30:23,614 INFO L87 Difference]: Start difference. First operand 26229 states and 38874 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 02:30:27,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:27,876 INFO L93 Difference]: Finished difference Result 44299 states and 66679 transitions. [2022-11-03 02:30:27,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:30:27,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 192 [2022-11-03 02:30:27,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:28,057 INFO L225 Difference]: With dead ends: 44299 [2022-11-03 02:30:28,057 INFO L226 Difference]: Without dead ends: 26409 [2022-11-03 02:30:28,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:30:28,176 INFO L413 NwaCegarLoop]: 2121 mSDtfsCounter, 4 mSDsluCounter, 2357 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:28,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4235 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-03 02:30:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26409 states. [2022-11-03 02:30:30,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26409 to 26265. [2022-11-03 02:30:30,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26265 states, 15941 states have (on average 1.3363026158961169) internal successors, (21302), 16993 states have internal predecessors, (21302), 8591 states have call successors, (8591), 1742 states have call predecessors, (8591), 1732 states have return successors, (9017), 8039 states have call predecessors, (9017), 8588 states have call successors, (9017) [2022-11-03 02:30:30,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26265 states to 26265 states and 38910 transitions. [2022-11-03 02:30:30,597 INFO L78 Accepts]: Start accepts. Automaton has 26265 states and 38910 transitions. Word has length 192 [2022-11-03 02:30:30,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:30:30,600 INFO L495 AbstractCegarLoop]: Abstraction has 26265 states and 38910 transitions. [2022-11-03 02:30:30,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 02:30:30,600 INFO L276 IsEmpty]: Start isEmpty. Operand 26265 states and 38910 transitions. [2022-11-03 02:30:30,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-03 02:30:30,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:30,816 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:30:30,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:30:30,817 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:30,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:30,817 INFO L85 PathProgramCache]: Analyzing trace with hash -807506610, now seen corresponding path program 1 times [2022-11-03 02:30:30,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:30:30,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612188149] [2022-11-03 02:30:30,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:30,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:30:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:31,578 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-11-03 02:30:31,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:30:31,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612188149] [2022-11-03 02:30:31,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612188149] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:30:31,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090759859] [2022-11-03 02:30:31,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:31,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:30:31,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:30:31,582 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:30:31,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5b1704-1d69-48ba-b0f7-447670d77f9c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:30:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:33,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 6333 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:30:33,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:30:33,687 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-11-03 02:30:33,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:30:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-11-03 02:30:33,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090759859] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:30:33,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1698222510] [2022-11-03 02:30:33,913 INFO L159 IcfgInterpreter]: Started Sifa with 135 locations of interest [2022-11-03 02:30:33,913 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:30:33,917 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:30:33,923 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:30:33,924 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:31:04,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:31:05,732 INFO L244 Elim1Store]: Index analysis took 1283 ms [2022-11-03 02:32:06,137 WARN L234 SmtUtils]: Spent 1.00m on a formula simplification. DAG size of input: 2586 DAG size of output: 1719 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 02:32:06,145 INFO L356 Elim1Store]: treesize reduction 2882, result has 47.2 percent of original size [2022-11-03 02:32:06,154 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 288 select indices, 288 select index equivalence classes, 41330 disjoint index pairs (out of 41328 index pairs), introduced 288 new quantified variables, introduced 287 case distinctions, treesize of input 1447 treesize of output 3446