./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/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_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/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_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/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 f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef --- 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 03:31:56,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:31:56,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:31:56,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:31:56,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:31:56,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:31:56,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:31:56,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:31:56,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:31:56,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:31:56,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:31:56,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:31:56,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:31:56,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:31:56,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:31:56,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:31:56,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:31:56,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:31:56,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:31:56,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:31:56,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:31:56,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:31:56,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:31:56,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:31:56,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:31:56,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:31:56,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:31:56,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:31:56,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:31:56,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:31:56,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:31:56,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:31:56,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:31:56,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:31:56,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:31:56,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:31:56,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:31:56,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:31:56,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:31:56,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:31:56,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:31:56,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:31:56,522 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:31:56,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:31:56,523 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:31:56,523 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:31:56,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:31:56,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:31:56,524 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:31:56,524 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:31:56,525 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:31:56,525 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:31:56,526 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:31:56,526 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:31:56,526 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:31:56,526 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:31:56,526 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:31:56,527 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:31:56,527 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:31:56,527 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:31:56,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:31:56,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:31:56,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:31:56,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:31:56,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:31:56,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:31:56,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:31:56,529 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:31:56,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:31:56,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:31:56,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:31:56,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:31:56,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:31:56,530 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:31:56,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:31:56,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:31:56,531 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:31:56,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:31:56,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:31:56,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:31:56,531 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_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef [2022-11-03 03:31:56,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:31:56,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:31:56,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:31:56,867 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:31:56,868 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:31:56,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2022-11-03 03:31:56,957 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/data/a89fd2ab1/031c7453b1bc465580bf0a6f05c43ced/FLAGce4e4883b [2022-11-03 03:31:57,869 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:31:57,869 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2022-11-03 03:31:57,937 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/data/a89fd2ab1/031c7453b1bc465580bf0a6f05c43ced/FLAGce4e4883b [2022-11-03 03:31:58,303 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/data/a89fd2ab1/031c7453b1bc465580bf0a6f05c43ced [2022-11-03 03:31:58,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:31:58,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:31:58,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:31:58,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:31:58,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:31:58,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:31:58" (1/1) ... [2022-11-03 03:31:58,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f383a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:58, skipping insertion in model container [2022-11-03 03:31:58,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:31:58" (1/1) ... [2022-11-03 03:31:58,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:31:58,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:32:01,082 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_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i[338700,338713] [2022-11-03 03:32:01,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:32:01,162 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:32:01,745 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_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i[338700,338713] [2022-11-03 03:32:01,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:32:01,820 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:32:01,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:01 WrapperNode [2022-11-03 03:32:01,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:32:01,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:32:01,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:32:01,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:32:01,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:01" (1/1) ... [2022-11-03 03:32:01,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:01" (1/1) ... [2022-11-03 03:32:02,146 INFO L138 Inliner]: procedures = 274, calls = 5784, calls flagged for inlining = 107, calls inlined = 80, statements flattened = 6383 [2022-11-03 03:32:02,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:32:02,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:32:02,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:32:02,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:32:02,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:01" (1/1) ... [2022-11-03 03:32:02,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:01" (1/1) ... [2022-11-03 03:32:02,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:01" (1/1) ... [2022-11-03 03:32:02,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:01" (1/1) ... [2022-11-03 03:32:02,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:01" (1/1) ... [2022-11-03 03:32:02,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:01" (1/1) ... [2022-11-03 03:32:02,431 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:01" (1/1) ... [2022-11-03 03:32:02,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:01" (1/1) ... [2022-11-03 03:32:02,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:32:02,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:32:02,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:32:02,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:32:02,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:01" (1/1) ... [2022-11-03 03:32:02,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:32:02,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:32:02,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:32:02,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:32:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue_status_stage [2022-11-03 03:32:02,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue_status_stage [2022-11-03 03:32:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue [2022-11-03 03:32:02,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue [2022-11-03 03:32:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure ep_bd_list_free [2022-11-03 03:32:02,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_bd_list_free [2022-11-03 03:32:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:32:02,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:32:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure init_ep [2022-11-03 03:32:02,570 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ep [2022-11-03 03:32:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:32:02,570 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:32:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-11-03 03:32:02,570 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-11-03 03:32:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-03 03:32:02,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-03 03:32:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_reset [2022-11-03 03:32:02,571 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_reset [2022-11-03 03:32:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:32:02,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:32:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-03 03:32:02,571 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-03 03:32:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_disable [2022-11-03 03:32:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_disable [2022-11-03 03:32:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure usb_del_gadget_udc [2022-11-03 03:32:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_del_gadget_udc [2022-11-03 03:32:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 03:32:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 03:32:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:32:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:32:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2022-11-03 03:32:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2022-11-03 03:32:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:32:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:32:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-03 03:32:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-03 03:32:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_req_complete [2022-11-03 03:32:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_req_complete [2022-11-03 03:32:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_free_request [2022-11-03 03:32:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_free_request [2022-11-03 03:32:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure bd_add_to_bdi [2022-11-03 03:32:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_add_to_bdi [2022-11-03 03:32:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_remove [2022-11-03 03:32:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_remove [2022-11-03 03:32:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-03 03:32:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-03 03:32:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:32:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 03:32:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 03:32:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_stop [2022-11-03 03:32:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_stop [2022-11-03 03:32:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:32:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-03 03:32:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-03 03:32:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:32:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:32:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_isoc [2022-11-03 03:32:02,576 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_isoc [2022-11-03 03:32:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:32:02,576 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:32:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:32:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:32:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_free_ep [2022-11-03 03:32:02,576 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_free_ep [2022-11-03 03:32:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_notify_xfr [2022-11-03 03:32:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_notify_xfr [2022-11-03 03:32:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 03:32:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 03:32:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 03:32:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 03:32:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop_ep [2022-11-03 03:32:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop_ep [2022-11-03 03:32:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 03:32:02,577 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 03:32:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_set_stall [2022-11-03 03:32:02,578 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_set_stall [2022-11-03 03:32:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 03:32:02,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 03:32:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_map_request [2022-11-03 03:32:02,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_map_request [2022-11-03 03:32:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_free [2022-11-03 03:32:02,663 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_free [2022-11-03 03:32:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_dbg_bd_list [2022-11-03 03:32:02,664 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_dbg_bd_list [2022-11-03 03:32:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure ep_set_halt [2022-11-03 03:32:02,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_set_halt [2022-11-03 03:32:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 03:32:02,664 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 03:32:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_tbi [2022-11-03 03:32:02,665 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_tbi [2022-11-03 03:32:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 03:32:02,665 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 03:32:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:32:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_init [2022-11-03 03:32:02,665 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_init [2022-11-03 03:32:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_config_ep [2022-11-03 03:32:02,665 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_config_ep [2022-11-03 03:32:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_enable [2022-11-03 03:32:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_enable [2022-11-03 03:32:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_queue_xfr [2022-11-03 03:32:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_queue_xfr [2022-11-03 03:32:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_hw_exit [2022-11-03 03:32:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_hw_exit [2022-11-03 03:32:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 03:32:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 03:32:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:32:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:32:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_disable [2022-11-03 03:32:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_disable [2022-11-03 03:32:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 03:32:02,668 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 03:32:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:32:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:32:02,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:32:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 03:32:02,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 03:32:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:32:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-03 03:32:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 03:32:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 03:32:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-03 03:32:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-03 03:32:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:32:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_dequeue [2022-11-03 03:32:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_dequeue [2022-11-03 03:32:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_state [2022-11-03 03:32:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_state [2022-11-03 03:32:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:32:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:32:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:32:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_start [2022-11-03 03:32:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_start [2022-11-03 03:32:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure poll_oip [2022-11-03 03:32:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_oip [2022-11-03 03:32:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2022-11-03 03:32:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2022-11-03 03:32:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop [2022-11-03 03:32:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop [2022-11-03 03:32:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_softconn [2022-11-03 03:32:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_softconn [2022-11-03 03:32:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_run [2022-11-03 03:32:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_run [2022-11-03 03:32:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2022-11-03 03:32:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2022-11-03 03:32:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_submit_cmd [2022-11-03 03:32:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_submit_cmd [2022-11-03 03:32:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_wakeup [2022-11-03 03:32:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_wakeup [2022-11-03 03:32:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 03:32:02,675 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 03:32:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure find_end_bdi [2022-11-03 03:32:02,675 INFO L138 BoogieDeclarations]: Found implementation of procedure find_end_bdi [2022-11-03 03:32:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_bd [2022-11-03 03:32:02,675 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_bd [2022-11-03 03:32:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:32:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_writel [2022-11-03 03:32:02,676 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_writel [2022-11-03 03:32:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:32:02,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:32:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure chain_table [2022-11-03 03:32:02,676 INFO L138 BoogieDeclarations]: Found implementation of procedure chain_table [2022-11-03 03:32:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_readl [2022-11-03 03:32:02,676 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_readl [2022-11-03 03:32:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_enable [2022-11-03 03:32:02,677 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_enable [2022-11-03 03:32:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 03:32:02,677 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 03:32:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_probe [2022-11-03 03:32:02,677 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_probe [2022-11-03 03:32:03,527 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:32:03,531 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:32:05,108 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:32:15,471 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:32:17,016 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:32:17,017 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:32:17,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:32:17 BoogieIcfgContainer [2022-11-03 03:32:17,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:32:17,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:32:17,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:32:17,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:32:17,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:31:58" (1/3) ... [2022-11-03 03:32:17,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba71f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:32:17, skipping insertion in model container [2022-11-03 03:32:17,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:01" (2/3) ... [2022-11-03 03:32:17,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba71f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:32:17, skipping insertion in model container [2022-11-03 03:32:17,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:32:17" (3/3) ... [2022-11-03 03:32:17,033 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2022-11-03 03:32:17,054 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:32:17,054 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:32:17,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:32:17,167 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;@72a89998, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:32:17,168 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:32:17,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 1103 states, 671 states have (on average 1.2906110283159464) internal successors, (866), 689 states have internal predecessors, (866), 353 states have call successors, (353), 78 states have call predecessors, (353), 77 states have return successors, (348), 348 states have call predecessors, (348), 348 states have call successors, (348) [2022-11-03 03:32:17,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-03 03:32:17,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:17,209 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:32:17,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:17,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:17,218 INFO L85 PathProgramCache]: Analyzing trace with hash 249346938, now seen corresponding path program 1 times [2022-11-03 03:32:17,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:17,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978208080] [2022-11-03 03:32:17,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:17,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-03 03:32:18,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:18,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978208080] [2022-11-03 03:32:18,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978208080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:18,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:18,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:32:18,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164433661] [2022-11-03 03:32:18,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:18,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:32:18,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:18,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:32:18,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:32:18,276 INFO L87 Difference]: Start difference. First operand has 1103 states, 671 states have (on average 1.2906110283159464) internal successors, (866), 689 states have internal predecessors, (866), 353 states have call successors, (353), 78 states have call predecessors, (353), 77 states have return successors, (348), 348 states have call predecessors, (348), 348 states have call successors, (348) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 03:32:20,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:22,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:22,409 INFO L93 Difference]: Finished difference Result 3000 states and 4277 transitions. [2022-11-03 03:32:22,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:32:22,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2022-11-03 03:32:22,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:22,436 INFO L225 Difference]: With dead ends: 3000 [2022-11-03 03:32:22,437 INFO L226 Difference]: Without dead ends: 1883 [2022-11-03 03:32:22,450 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 03:32:22,453 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 1104 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 2985 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:22,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 2985 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-03 03:32:22,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2022-11-03 03:32:22,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1879. [2022-11-03 03:32:22,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1879 states, 1140 states have (on average 1.2675438596491229) internal successors, (1445), 1161 states have internal predecessors, (1445), 601 states have call successors, (601), 138 states have call predecessors, (601), 137 states have return successors, (600), 599 states have call predecessors, (600), 600 states have call successors, (600) [2022-11-03 03:32:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2646 transitions. [2022-11-03 03:32:22,659 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2646 transitions. Word has length 59 [2022-11-03 03:32:22,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:22,659 INFO L495 AbstractCegarLoop]: Abstraction has 1879 states and 2646 transitions. [2022-11-03 03:32:22,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 03:32:22,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2646 transitions. [2022-11-03 03:32:22,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-03 03:32:22,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:22,674 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:32:22,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:32:22,677 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:22,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:22,678 INFO L85 PathProgramCache]: Analyzing trace with hash 839687913, now seen corresponding path program 1 times [2022-11-03 03:32:22,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:22,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3238238] [2022-11-03 03:32:22,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:22,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:23,497 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-11-03 03:32:23,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:23,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3238238] [2022-11-03 03:32:23,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3238238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:23,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:23,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:32:23,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903759660] [2022-11-03 03:32:23,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:23,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:32:23,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:23,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:32:23,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:32:23,506 INFO L87 Difference]: Start difference. First operand 1879 states and 2646 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 03:32:26,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:26,981 INFO L93 Difference]: Finished difference Result 3384 states and 4785 transitions. [2022-11-03 03:32:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:32:26,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2022-11-03 03:32:26,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:27,009 INFO L225 Difference]: With dead ends: 3384 [2022-11-03 03:32:27,009 INFO L226 Difference]: Without dead ends: 3381 [2022-11-03 03:32:27,012 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 03:32:27,014 INFO L413 NwaCegarLoop]: 1703 mSDtfsCounter, 1122 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 3020 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:27,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 3020 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-03 03:32:27,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states. [2022-11-03 03:32:27,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 3348. [2022-11-03 03:32:27,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 2042 states have (on average 1.27179236043095) internal successors, (2597), 2087 states have internal predecessors, (2597), 1060 states have call successors, (1060), 250 states have call predecessors, (1060), 245 states have return successors, (1072), 1044 states have call predecessors, (1072), 1059 states have call successors, (1072) [2022-11-03 03:32:27,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 4729 transitions. [2022-11-03 03:32:27,337 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 4729 transitions. Word has length 117 [2022-11-03 03:32:27,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:27,340 INFO L495 AbstractCegarLoop]: Abstraction has 3348 states and 4729 transitions. [2022-11-03 03:32:27,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 03:32:27,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 4729 transitions. [2022-11-03 03:32:27,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-03 03:32:27,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:27,356 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:32:27,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:32:27,357 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:27,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:27,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1622354921, now seen corresponding path program 1 times [2022-11-03 03:32:27,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:27,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593917321] [2022-11-03 03:32:27,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:27,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:32,222 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-11-03 03:32:32,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:32,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593917321] [2022-11-03 03:32:32,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593917321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:32,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:32,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-03 03:32:32,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140467487] [2022-11-03 03:32:32,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:32,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 03:32:32,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:32,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 03:32:32,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:32:32,225 INFO L87 Difference]: Start difference. First operand 3348 states and 4729 transitions. Second operand has 12 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-03 03:32:49,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:51,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:53,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:55,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:57,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:59,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:01,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:03,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:05,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:25,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:45,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:45,314 INFO L93 Difference]: Finished difference Result 6959 states and 9932 transitions. [2022-11-03 03:33:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:33:45,315 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) Word has length 146 [2022-11-03 03:33:45,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:45,342 INFO L225 Difference]: With dead ends: 6959 [2022-11-03 03:33:45,342 INFO L226 Difference]: Without dead ends: 3612 [2022-11-03 03:33:45,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-11-03 03:33:45,359 INFO L413 NwaCegarLoop]: 1370 mSDtfsCounter, 169 mSDsluCounter, 10401 mSDsCounter, 0 mSdLazyCounter, 7235 mSolverCounterSat, 352 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 10552 SdHoareTripleChecker+Invalid, 7596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 7235 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:45,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 10552 Invalid, 7596 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [352 Valid, 7235 Invalid, 9 Unknown, 0 Unchecked, 72.6s Time] [2022-11-03 03:33:45,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2022-11-03 03:33:45,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3400. [2022-11-03 03:33:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3400 states, 2078 states have (on average 1.2757459095283927) internal successors, (2651), 2129 states have internal predecessors, (2651), 1066 states have call successors, (1066), 252 states have call predecessors, (1066), 255 states have return successors, (1109), 1052 states have call predecessors, (1109), 1065 states have call successors, (1109) [2022-11-03 03:33:45,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3400 states to 3400 states and 4826 transitions. [2022-11-03 03:33:45,553 INFO L78 Accepts]: Start accepts. Automaton has 3400 states and 4826 transitions. Word has length 146 [2022-11-03 03:33:45,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:45,554 INFO L495 AbstractCegarLoop]: Abstraction has 3400 states and 4826 transitions. [2022-11-03 03:33:45,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-03 03:33:45,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3400 states and 4826 transitions. [2022-11-03 03:33:45,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-03 03:33:45,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:45,563 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:33:45,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:33:45,563 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:33:45,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:45,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1806309475, now seen corresponding path program 1 times [2022-11-03 03:33:45,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:33:45,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299961341] [2022-11-03 03:33:45,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:45,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:33:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-03 03:33:52,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:33:52,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299961341] [2022-11-03 03:33:52,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299961341] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:33:52,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005667895] [2022-11-03 03:33:52,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:52,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:33:52,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:33:52,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:33:52,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:33:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:53,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 7427 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 03:33:53,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:33:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-11-03 03:33:53,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:33:53,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005667895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:33:53,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:33:53,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [19] total 23 [2022-11-03 03:33:53,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105129689] [2022-11-03 03:33:53,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:33:53,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:33:53,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:33:53,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:33:53,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2022-11-03 03:33:53,908 INFO L87 Difference]: Start difference. First operand 3400 states and 4826 transitions. Second operand has 6 states, 4 states have (on average 15.25) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 03:33:56,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:02,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:04,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:06,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:09,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:09,387 INFO L93 Difference]: Finished difference Result 6775 states and 9632 transitions. [2022-11-03 03:34:09,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:34:09,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 15.25) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 148 [2022-11-03 03:34:09,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:09,410 INFO L225 Difference]: With dead ends: 6775 [2022-11-03 03:34:09,410 INFO L226 Difference]: Without dead ends: 3368 [2022-11-03 03:34:09,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2022-11-03 03:34:09,432 INFO L413 NwaCegarLoop]: 1324 mSDtfsCounter, 3 mSDsluCounter, 6142 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6599 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:09,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6599 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1149 Invalid, 3 Unknown, 0 Unchecked, 15.3s Time] [2022-11-03 03:34:09,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3368 states. [2022-11-03 03:34:09,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3368 to 3366. [2022-11-03 03:34:09,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 2051 states have (on average 1.272549975621648) internal successors, (2610), 2105 states have internal predecessors, (2610), 1060 states have call successors, (1060), 250 states have call predecessors, (1060), 254 states have return successors, (1086), 1044 states have call predecessors, (1086), 1059 states have call successors, (1086) [2022-11-03 03:34:09,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 4756 transitions. [2022-11-03 03:34:09,695 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 4756 transitions. Word has length 148 [2022-11-03 03:34:09,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:09,696 INFO L495 AbstractCegarLoop]: Abstraction has 3366 states and 4756 transitions. [2022-11-03 03:34:09,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 15.25) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 03:34:09,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 4756 transitions. [2022-11-03 03:34:09,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-03 03:34:09,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:09,704 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:34:09,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 03:34:09,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:34:09,919 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:34:09,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:09,919 INFO L85 PathProgramCache]: Analyzing trace with hash -702255641, now seen corresponding path program 2 times [2022-11-03 03:34:09,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:09,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335903696] [2022-11-03 03:34:09,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:09,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:16,648 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-11-03 03:34:16,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:16,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335903696] [2022-11-03 03:34:16,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335903696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:34:16,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328638675] [2022-11-03 03:34:16,649 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:34:16,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:34:16,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:34:16,650 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:34:16,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5396ac32-47b0-4bc1-b6dc-fdf7fab295b2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:34:18,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 03:34:18,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:34:18,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 6978 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 03:34:18,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:34:18,554 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-03 03:34:18,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:34:19,103 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-03 03:34:19,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328638675] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:34:19,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [718186500] [2022-11-03 03:34:19,131 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2022-11-03 03:34:19,131 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:34:19,135 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:34:19,141 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:34:19,141 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:40:42,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 03:40:42,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 03:40:42,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-03 03:41:21,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:21,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:22,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:22,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:22,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:22,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:22,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:22,688 INFO L244 Elim1Store]: Index analysis took 1142 ms [2022-11-03 03:41:23,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 976 select indices, 976 select index equivalence classes, 25251 disjoint index pairs (out of 475800 index pairs), introduced 976 new quantified variables, introduced 0 case distinctions, treesize of input 6853 treesize of output 2929 [2022-11-03 03:43:00,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:00,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:00,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:00,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:00,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:00,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:00,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:00,698 INFO L244 Elim1Store]: Index analysis took 513 ms [2022-11-03 03:43:01,195 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 976 select indices, 976 select index equivalence classes, 25251 disjoint index pairs (out of 475800 index pairs), introduced 976 new quantified variables, introduced 0 case distinctions, treesize of input 6853 treesize of output 2929 [2022-11-03 03:43:07,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:43:07,676 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:43:07,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:43:08,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:43:08,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:43:08,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:43:24,918 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:43:25,098 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:43:25,189 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:43:25,381 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:43:25,403 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:43:25,411 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:43:38,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:43:38,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:43:39,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:43:39,309 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:43:39,320 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:43:39,326 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:43:55,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:43:55,872 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:43:55,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:43:56,223 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:43:56,230 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:43:56,246 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:10,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:10,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:44:10,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:11,005 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:11,012 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:11,014 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:34,293 WARN L234 SmtUtils]: Spent 11.63s on a formula simplification that was a NOOP. DAG size: 7811 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 03:44:34,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:35,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:35,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:44:35,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:35,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:44:35,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:38,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:38,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:38,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:44:39,033 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:39,041 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:39,045 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:41,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:44:41,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:41,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:41,915 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:41,918 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:41,921 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:42,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:44:42,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:42,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:42,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:42,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:44:42,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:46,261 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:44:46,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:46,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:46,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:46,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:44:46,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:46,953 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:46,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:44:47,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:47,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:44:47,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:47,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:51,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:51,361 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:44:51,426 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:51,499 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:51,503 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:51,522 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:54,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:54,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:44:54,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 03:44:55,076 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:55,082 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:44:55,088 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:45:06,785 WARN L234 SmtUtils]: Spent 10.76s on a formula simplification that was a NOOP. DAG size: 7790 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 03:45:17,102 WARN L234 SmtUtils]: Spent 9.66s on a formula simplification that was a NOOP. DAG size: 7797 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 03:45:26,918 WARN L234 SmtUtils]: Spent 9.49s on a formula simplification that was a NOOP. DAG size: 7799 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 03:45:35,420 WARN L234 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 7799 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 03:45:44,083 WARN L234 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 7656 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 03:45:44,339 INFO L356 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-11-03 03:45:44,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 16 [2022-11-03 03:45:44,432 INFO L356 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-03 03:45:44,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 40 treesize of output 37 [2022-11-03 03:45:44,664 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 03:45:44,707 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 03:45:44,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 03:45:44,881 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 03:45:46,525 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-03 03:45:46,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-03 03:45:46,539 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-03 03:45:46,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-03 03:45:46,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-03 03:45:46,578 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-03 03:45:46,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-03 03:45:46,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-03 03:45:46,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-03 03:45:46,968 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:45:47,029 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:45:48,218 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 03:45:48,288 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:45:52,624 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 113 for LOIs [2022-11-03 03:45:52,845 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 187 for LOIs [2022-11-03 03:45:52,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 03:45:53,029 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 03:45:55,292 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 206 for LOIs [2022-11-03 03:45:55,345 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 210 for LOIs [2022-11-03 03:45:55,503 INFO L197 IcfgInterpreter]: Interpreting procedure bdc_gadget_ep_enable with input of size 143 for LOIs [2022-11-03 03:45:56,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:58,593 INFO L356 Elim1Store]: treesize reduction 640, result has 18.8 percent of original size [2022-11-03 03:45:58,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 19 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 230 [2022-11-03 03:45:58,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:58,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:58,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:58,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:58,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:58,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:03,103 INFO L356 Elim1Store]: treesize reduction 1101, result has 21.6 percent of original size [2022-11-03 03:46:03,104 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 29 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 323 treesize of output 530 [2022-11-03 03:46:03,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:03,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:03,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:03,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:03,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:03,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:05,624 INFO L356 Elim1Store]: treesize reduction 1001, result has 21.3 percent of original size [2022-11-03 03:46:05,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 22 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 883 treesize of output 774 [2022-11-03 03:46:05,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:05,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:05,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:05,992 INFO L356 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-03 03:46:05,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 49 treesize of output 49 [2022-11-03 03:46:06,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:06,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:06,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:06,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 28