./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 e04fb08f 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_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/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_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-e04fb08 [2022-11-16 15:54:10,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:54:10,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:54:10,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:54:10,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:54:10,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:54:10,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:54:10,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:54:10,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:54:10,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:54:10,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:54:10,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:54:10,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:54:10,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:54:10,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:54:10,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:54:10,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:54:10,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:54:10,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:54:10,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:54:10,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:54:10,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:54:10,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:54:10,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:54:10,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:54:10,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:54:10,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:54:10,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:54:10,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:54:10,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:54:10,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:54:10,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:54:10,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:54:10,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:54:10,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:54:10,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:54:10,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:54:10,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:54:10,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:54:10,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:54:10,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:54:10,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 15:54:10,413 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:54:10,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:54:10,417 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:54:10,417 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:54:10,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:54:10,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:54:10,419 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 15:54:10,420 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 15:54:10,420 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 15:54:10,420 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 15:54:10,422 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 15:54:10,422 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 15:54:10,422 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 15:54:10,423 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 15:54:10,423 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 15:54:10,423 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 15:54:10,424 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 15:54:10,424 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 15:54:10,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:54:10,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 15:54:10,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:54:10,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 15:54:10,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:54:10,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 15:54:10,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 15:54:10,429 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:54:10,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 15:54:10,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:54:10,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:54:10,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:54:10,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:54:10,431 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 15:54:10,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:54:10,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 15:54:10,432 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 15:54:10,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 15:54:10,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 15:54:10,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 15:54:10,434 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_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef [2022-11-16 15:54:10,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:54:10,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:54:10,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:54:10,764 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:54:10,765 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:54:10,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/../../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 [2022-11-16 15:54:10,867 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/data/2d5b42544/11c369b1ea3840b6ae84786139f8082a/FLAG78c5c6090 [2022-11-16 15:54:11,744 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:54:11,745 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/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 [2022-11-16 15:54:11,786 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/data/2d5b42544/11c369b1ea3840b6ae84786139f8082a/FLAG78c5c6090 [2022-11-16 15:54:11,880 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/data/2d5b42544/11c369b1ea3840b6ae84786139f8082a [2022-11-16 15:54:11,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:54:11,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 15:54:11,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:54:11,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:54:11,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:54:11,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:54:11" (1/1) ... [2022-11-16 15:54:11,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e0c962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:11, skipping insertion in model container [2022-11-16 15:54:11,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:54:11" (1/1) ... [2022-11-16 15:54:11,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:54:12,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:54:14,552 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/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] [2022-11-16 15:54:14,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:54:14,632 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:54:15,343 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/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] [2022-11-16 15:54:15,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:54:15,443 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:54:15,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:15 WrapperNode [2022-11-16 15:54:15,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:54:15,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:54:15,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:54:15,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:54:15,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:15" (1/1) ... [2022-11-16 15:54:15,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:15" (1/1) ... [2022-11-16 15:54:15,917 INFO L138 Inliner]: procedures = 274, calls = 5840, calls flagged for inlining = 107, calls inlined = 80, statements flattened = 6613 [2022-11-16 15:54:15,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:54:15,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:54:15,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:54:15,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:54:15,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:15" (1/1) ... [2022-11-16 15:54:15,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:15" (1/1) ... [2022-11-16 15:54:15,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:15" (1/1) ... [2022-11-16 15:54:15,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:15" (1/1) ... [2022-11-16 15:54:16,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:15" (1/1) ... [2022-11-16 15:54:16,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:15" (1/1) ... [2022-11-16 15:54:16,173 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:15" (1/1) ... [2022-11-16 15:54:16,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:15" (1/1) ... [2022-11-16 15:54:16,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:54:16,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:54:16,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:54:16,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:54:16,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:15" (1/1) ... [2022-11-16 15:54:16,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:54:16,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:54:16,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 15:54:16,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 15:54:16,389 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue_status_stage [2022-11-16 15:54:16,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue_status_stage [2022-11-16 15:54:16,390 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue [2022-11-16 15:54:16,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue [2022-11-16 15:54:16,390 INFO L130 BoogieDeclarations]: Found specification of procedure ep_bd_list_free [2022-11-16 15:54:16,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_bd_list_free [2022-11-16 15:54:16,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 15:54:16,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 15:54:16,391 INFO L130 BoogieDeclarations]: Found specification of procedure init_ep [2022-11-16 15:54:16,391 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ep [2022-11-16 15:54:16,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 15:54:16,392 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 15:54:16,392 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-11-16 15:54:16,392 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-11-16 15:54:16,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-16 15:54:16,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-16 15:54:16,392 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_reset [2022-11-16 15:54:16,393 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_reset [2022-11-16 15:54:16,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 15:54:16,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 15:54:16,393 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-16 15:54:16,393 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-16 15:54:16,393 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_disable [2022-11-16 15:54:16,394 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_disable [2022-11-16 15:54:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure usb_del_gadget_udc [2022-11-16 15:54:16,394 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_del_gadget_udc [2022-11-16 15:54:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 15:54:16,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 15:54:16,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 15:54:16,395 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 15:54:16,395 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2022-11-16 15:54:16,395 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2022-11-16 15:54:16,395 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 15:54:16,396 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 15:54:16,396 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-16 15:54:16,396 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-16 15:54:16,396 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_req_complete [2022-11-16 15:54:16,396 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_req_complete [2022-11-16 15:54:16,397 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_free_request [2022-11-16 15:54:16,397 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_free_request [2022-11-16 15:54:16,397 INFO L130 BoogieDeclarations]: Found specification of procedure bd_add_to_bdi [2022-11-16 15:54:16,397 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_add_to_bdi [2022-11-16 15:54:16,397 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_remove [2022-11-16 15:54:16,397 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_remove [2022-11-16 15:54:16,398 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-16 15:54:16,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-16 15:54:16,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 15:54:16,398 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 15:54:16,398 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 15:54:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_stop [2022-11-16 15:54:16,399 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_stop [2022-11-16 15:54:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 15:54:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-16 15:54:16,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-16 15:54:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-16 15:54:16,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-16 15:54:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_isoc [2022-11-16 15:54:16,400 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_isoc [2022-11-16 15:54:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 15:54:16,401 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 15:54:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 15:54:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 15:54:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_free_ep [2022-11-16 15:54:16,401 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_free_ep [2022-11-16 15:54:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_notify_xfr [2022-11-16 15:54:16,402 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_notify_xfr [2022-11-16 15:54:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-16 15:54:16,402 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-16 15:54:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 15:54:16,403 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 15:54:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop_ep [2022-11-16 15:54:16,403 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop_ep [2022-11-16 15:54:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-16 15:54:16,403 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-16 15:54:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_set_stall [2022-11-16 15:54:16,404 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_set_stall [2022-11-16 15:54:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 15:54:16,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 15:54:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_map_request [2022-11-16 15:54:16,404 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_map_request [2022-11-16 15:54:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_free [2022-11-16 15:54:16,405 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_free [2022-11-16 15:54:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_dbg_bd_list [2022-11-16 15:54:16,405 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_dbg_bd_list [2022-11-16 15:54:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure ep_set_halt [2022-11-16 15:54:16,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_set_halt [2022-11-16 15:54:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-16 15:54:16,406 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-16 15:54:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_tbi [2022-11-16 15:54:16,406 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_tbi [2022-11-16 15:54:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-16 15:54:16,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-16 15:54:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 15:54:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_init [2022-11-16 15:54:16,407 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_init [2022-11-16 15:54:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_config_ep [2022-11-16 15:54:16,407 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_config_ep [2022-11-16 15:54:16,408 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_enable [2022-11-16 15:54:16,408 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_enable [2022-11-16 15:54:16,408 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_queue_xfr [2022-11-16 15:54:16,408 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_queue_xfr [2022-11-16 15:54:16,408 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_hw_exit [2022-11-16 15:54:16,408 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_hw_exit [2022-11-16 15:54:16,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-16 15:54:16,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-16 15:54:16,409 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 15:54:16,409 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 15:54:16,409 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_disable [2022-11-16 15:54:16,409 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_disable [2022-11-16 15:54:16,410 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-16 15:54:16,410 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-16 15:54:16,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 15:54:16,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 15:54:16,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 15:54:16,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 15:54:16,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 15:54:16,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 15:54:16,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-16 15:54:16,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 15:54:16,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 15:54:16,412 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-16 15:54:16,412 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-16 15:54:16,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 15:54:16,412 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_dequeue [2022-11-16 15:54:16,412 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_dequeue [2022-11-16 15:54:16,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_state [2022-11-16 15:54:16,413 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_state [2022-11-16 15:54:16,413 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-16 15:54:16,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-16 15:54:16,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 15:54:16,414 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_start [2022-11-16 15:54:16,414 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_start [2022-11-16 15:54:16,414 INFO L130 BoogieDeclarations]: Found specification of procedure poll_oip [2022-11-16 15:54:16,414 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_oip [2022-11-16 15:54:16,414 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2022-11-16 15:54:16,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2022-11-16 15:54:16,415 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop [2022-11-16 15:54:16,415 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop [2022-11-16 15:54:16,415 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_softconn [2022-11-16 15:54:16,415 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_softconn [2022-11-16 15:54:16,416 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_run [2022-11-16 15:54:16,416 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_run [2022-11-16 15:54:16,416 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2022-11-16 15:54:16,416 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2022-11-16 15:54:16,416 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_submit_cmd [2022-11-16 15:54:16,416 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_submit_cmd [2022-11-16 15:54:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_wakeup [2022-11-16 15:54:16,417 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_wakeup [2022-11-16 15:54:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-16 15:54:16,417 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-16 15:54:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure find_end_bdi [2022-11-16 15:54:16,418 INFO L138 BoogieDeclarations]: Found implementation of procedure find_end_bdi [2022-11-16 15:54:16,418 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_bd [2022-11-16 15:54:16,418 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_bd [2022-11-16 15:54:16,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 15:54:16,418 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_writel [2022-11-16 15:54:16,418 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_writel [2022-11-16 15:54:16,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:54:16,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:54:16,419 INFO L130 BoogieDeclarations]: Found specification of procedure chain_table [2022-11-16 15:54:16,419 INFO L138 BoogieDeclarations]: Found implementation of procedure chain_table [2022-11-16 15:54:16,419 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_readl [2022-11-16 15:54:16,419 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_readl [2022-11-16 15:54:16,420 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_enable [2022-11-16 15:54:16,420 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_enable [2022-11-16 15:54:16,420 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 15:54:16,420 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 15:54:16,420 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_probe [2022-11-16 15:54:16,420 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_probe [2022-11-16 15:54:17,197 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:54:17,202 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:54:19,262 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 15:54:31,828 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:54:34,397 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:54:34,397 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 15:54:34,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:54:34 BoogieIcfgContainer [2022-11-16 15:54:34,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:54:34,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:54:34,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:54:34,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:54:34,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:54:11" (1/3) ... [2022-11-16 15:54:34,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d27bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:54:34, skipping insertion in model container [2022-11-16 15:54:34,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:15" (2/3) ... [2022-11-16 15:54:34,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d27bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:54:34, skipping insertion in model container [2022-11-16 15:54:34,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:54:34" (3/3) ... [2022-11-16 15:54:34,421 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 [2022-11-16 15:54:34,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:54:34,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 15:54:34,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 15:54:34,549 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;@c953cf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:54:34,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 15:54:34,559 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) [2022-11-16 15:54:34,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-16 15:54:34,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:54:34,588 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] [2022-11-16 15:54:34,589 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:54:34,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:54:34,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1302645763, now seen corresponding path program 1 times [2022-11-16 15:54:34,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:54:34,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643038919] [2022-11-16 15:54:34,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:34,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:54:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:35,762 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-16 15:54:35,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:54:35,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643038919] [2022-11-16 15:54:35,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643038919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:54:35,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:54:35,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:54:35,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250331497] [2022-11-16 15:54:35,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:54:35,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:54:35,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:54:35,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:54:35,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:54:35,829 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) [2022-11-16 15:54:37,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:54:41,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:54:41,201 INFO L93 Difference]: Finished difference Result 3000 states and 4277 transitions. [2022-11-16 15:54:41,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:54:41,204 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 [2022-11-16 15:54:41,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:54:41,250 INFO L225 Difference]: With dead ends: 3000 [2022-11-16 15:54:41,250 INFO L226 Difference]: Without dead ends: 1883 [2022-11-16 15:54:41,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:54:41,270 INFO L413 NwaCegarLoop]: 1634 mSDtfsCounter, 1104 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-16 15:54:41,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 2931 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-16 15:54:41,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2022-11-16 15:54:41,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1879. [2022-11-16 15:54:41,539 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) [2022-11-16 15:54:41,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2646 transitions. [2022-11-16 15:54:41,561 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2646 transitions. Word has length 59 [2022-11-16 15:54:41,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:54:41,562 INFO L495 AbstractCegarLoop]: Abstraction has 1879 states and 2646 transitions. [2022-11-16 15:54:41,562 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) [2022-11-16 15:54:41,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2646 transitions. [2022-11-16 15:54:41,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-16 15:54:41,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:54:41,579 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] [2022-11-16 15:54:41,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 15:54:41,583 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:54:41,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:54:41,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1387339180, now seen corresponding path program 1 times [2022-11-16 15:54:41,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:54:41,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146846396] [2022-11-16 15:54:41,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:41,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:54:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:42,378 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-11-16 15:54:42,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:54:42,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146846396] [2022-11-16 15:54:42,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146846396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:54:42,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:54:42,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:54:42,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789630370] [2022-11-16 15:54:42,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:54:42,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:54:42,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:54:42,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:54:42,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:54:42,387 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) [2022-11-16 15:54:46,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:54:46,155 INFO L93 Difference]: Finished difference Result 3384 states and 4785 transitions. [2022-11-16 15:54:46,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:54:46,156 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 [2022-11-16 15:54:46,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:54:46,184 INFO L225 Difference]: With dead ends: 3384 [2022-11-16 15:54:46,184 INFO L226 Difference]: Without dead ends: 3381 [2022-11-16 15:54:46,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:54:46,189 INFO L413 NwaCegarLoop]: 1666 mSDtfsCounter, 1122 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 2956 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-16 15:54:46,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 2956 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-16 15:54:46,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states. [2022-11-16 15:54:46,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 3348. [2022-11-16 15:54:46,405 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) [2022-11-16 15:54:46,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 4729 transitions. [2022-11-16 15:54:46,436 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 4729 transitions. Word has length 117 [2022-11-16 15:54:46,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:54:46,440 INFO L495 AbstractCegarLoop]: Abstraction has 3348 states and 4729 transitions. [2022-11-16 15:54:46,441 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) [2022-11-16 15:54:46,441 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 4729 transitions. [2022-11-16 15:54:46,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-16 15:54:46,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:54:46,457 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] [2022-11-16 15:54:46,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 15:54:46,458 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:54:46,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:54:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1525703175, now seen corresponding path program 1 times [2022-11-16 15:54:46,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:54:46,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736646873] [2022-11-16 15:54:46,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:46,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:54:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:49,709 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-11-16 15:54:49,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:54:49,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736646873] [2022-11-16 15:54:49,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736646873] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:54:49,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188991673] [2022-11-16 15:54:49,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:49,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:54:49,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:54:49,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:54:49,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 15:54:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:54:52,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 7509 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-16 15:54:52,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:54:52,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-16 15:54:53,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2022-11-16 15:54:53,038 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-16 15:54:53,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 15:54:53,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188991673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:54:53,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 15:54:53,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2022-11-16 15:54:53,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143624303] [2022-11-16 15:54:53,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:54:53,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 15:54:53,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:54:53,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 15:54:53,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-16 15:54:53,043 INFO L87 Difference]: Start difference. First operand 3348 states and 4729 transitions. Second operand has 12 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-16 15:55:02,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:55:04,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:55:06,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:55:08,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:55:25,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:55:25,639 INFO L93 Difference]: Finished difference Result 6825 states and 9692 transitions. [2022-11-16 15:55:25,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 15:55:25,640 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) Word has length 146 [2022-11-16 15:55:25,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:55:25,668 INFO L225 Difference]: With dead ends: 6825 [2022-11-16 15:55:25,668 INFO L226 Difference]: Without dead ends: 3478 [2022-11-16 15:55:25,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2022-11-16 15:55:25,687 INFO L413 NwaCegarLoop]: 1250 mSDtfsCounter, 154 mSDsluCounter, 5119 mSDsCounter, 0 mSdLazyCounter, 3712 mSolverCounterSat, 338 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 6369 SdHoareTripleChecker+Invalid, 4771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 3712 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 717 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:55:25,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 6369 Invalid, 4771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [338 Valid, 3712 Invalid, 4 Unknown, 717 Unchecked, 32.1s Time] [2022-11-16 15:55:25,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3478 states. [2022-11-16 15:55:25,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3478 to 3406. [2022-11-16 15:55:25,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 2080 states have (on average 1.2745192307692308) internal successors, (2651), 2131 states have internal predecessors, (2651), 1066 states have call successors, (1066), 256 states have call predecessors, (1066), 259 states have return successors, (1109), 1052 states have call predecessors, (1109), 1065 states have call successors, (1109) [2022-11-16 15:55:25,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 4826 transitions. [2022-11-16 15:55:25,935 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 4826 transitions. Word has length 146 [2022-11-16 15:55:25,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:55:25,936 INFO L495 AbstractCegarLoop]: Abstraction has 3406 states and 4826 transitions. [2022-11-16 15:55:25,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 5 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-16 15:55:25,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 4826 transitions. [2022-11-16 15:55:25,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-16 15:55:25,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:55:25,944 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, 1] [2022-11-16 15:55:25,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 15:55:26,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:55:26,159 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:55:26,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:55:26,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1032346180, now seen corresponding path program 1 times [2022-11-16 15:55:26,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:55:26,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844836979] [2022-11-16 15:55:26,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:55:26,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:55:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:55:28,301 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-16 15:55:28,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:55:28,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844836979] [2022-11-16 15:55:28,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844836979] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:55:28,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337774890] [2022-11-16 15:55:28,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:55:28,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:55:28,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:55:28,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:55:28,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 15:55:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:55:30,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 7524 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 15:55:30,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:55:30,341 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-16 15:55:30,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 15:55:30,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337774890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:55:30,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 15:55:30,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-11-16 15:55:30,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102309775] [2022-11-16 15:55:30,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:55:30,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 15:55:30,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:55:30,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 15:55:30,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 15:55:30,344 INFO L87 Difference]: Start difference. First operand 3406 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) [2022-11-16 15:55:39,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:55:39,035 INFO L93 Difference]: Finished difference Result 6789 states and 9636 transitions. [2022-11-16 15:55:39,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 15:55:39,036 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 147 [2022-11-16 15:55:39,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:55:39,056 INFO L225 Difference]: With dead ends: 6789 [2022-11-16 15:55:39,057 INFO L226 Difference]: Without dead ends: 3376 [2022-11-16 15:55:39,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-16 15:55:39,072 INFO L413 NwaCegarLoop]: 1297 mSDtfsCounter, 3 mSDsluCounter, 5167 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6464 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-16 15:55:39,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6464 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-16 15:55:39,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3376 states. [2022-11-16 15:55:39,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3376 to 3374. [2022-11-16 15:55:39,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 2055 states have (on average 1.2720194647201946) internal successors, (2614), 2109 states have internal predecessors, (2614), 1060 states have call successors, (1060), 254 states have call predecessors, (1060), 258 states have return successors, (1086), 1044 states have call predecessors, (1086), 1059 states have call successors, (1086) [2022-11-16 15:55:39,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 4760 transitions. [2022-11-16 15:55:39,260 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 4760 transitions. Word has length 147 [2022-11-16 15:55:39,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:55:39,261 INFO L495 AbstractCegarLoop]: Abstraction has 3374 states and 4760 transitions. [2022-11-16 15:55:39,261 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) [2022-11-16 15:55:39,261 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 4760 transitions. [2022-11-16 15:55:39,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-16 15:55:39,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:55:39,269 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] [2022-11-16 15:55:39,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 15:55:39,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:55:39,489 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:55:39,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:55:39,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1354908152, now seen corresponding path program 2 times [2022-11-16 15:55:39,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:55:39,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713003751] [2022-11-16 15:55:39,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:55:39,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:55:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:55:41,797 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-16 15:55:41,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:55:41,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713003751] [2022-11-16 15:55:41,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713003751] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:55:41,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900761885] [2022-11-16 15:55:41,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 15:55:41,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:55:41,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:55:41,803 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:55:41,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6a4a77-131b-44b4-864e-5a4d8a2dd693/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 15:55:43,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 15:55:43,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:55:43,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 7090 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 15:55:43,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:55:43,946 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-16 15:55:43,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:55:44,360 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-16 15:55:44,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900761885] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:55:44,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1064989298] [2022-11-16 15:55:44,388 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2022-11-16 15:55:44,389 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:55:44,393 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:55:44,399 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:55:44,400 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:01:24,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 16:01:24,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 16:01:24,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-16 16:01:58,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:01:59,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:01:59,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:01:59,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:01:59,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:01:59,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:01:59,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:01:59,961 INFO L217 Elim1Store]: Index analysis took 1059 ms [2022-11-16 16:02:00,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1032 select indices, 1032 select index equivalence classes, 26854 disjoint index pairs (out of 531996 index pairs), introduced 1032 new quantified variables, introduced 0 case distinctions, treesize of input 7245 treesize of output 3097 [2022-11-16 16:03:12,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:03:12,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:03:13,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:03:13,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:03:13,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:03:13,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:03:13,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:03:13,266 INFO L217 Elim1Store]: Index analysis took 515 ms [2022-11-16 16:03:13,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1032 select indices, 1032 select index equivalence classes, 26854 disjoint index pairs (out of 531996 index pairs), introduced 1032 new quantified variables, introduced 0 case distinctions, treesize of input 7245 treesize of output 3097 [2022-11-16 16:03:17,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:17,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:17,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:18,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:18,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:18,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:19,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:19,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:19,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:19,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:19,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:19,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:20,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:20,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:20,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:21,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:21,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:21,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:30,552 WARN L233 SmtUtils]: Spent 7.92s on a formula simplification that was a NOOP. DAG size: 7822 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-16 16:03:31,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:31,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:31,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:31,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:31,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:31,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:31,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:31,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:31,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:31,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:31,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:31,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:32,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:32,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:32,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:32,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:32,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:32,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:34,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:34,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:34,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:34,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:35,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:35,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:35,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:35,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:35,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:35,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:35,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:35,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:38,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:38,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:38,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:38,755 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:03:38,761 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:03:38,764 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:03:41,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:41,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:03:41,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 16:03:41,349 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:03:41,352 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:03:41,356 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:03:49,347 WARN L233 SmtUtils]: Spent 7.78s on a formula simplification that was a NOOP. DAG size: 7813 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-16 16:03:57,134 WARN L233 SmtUtils]: Spent 7.75s on a formula simplification that was a NOOP. DAG size: 7813 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-16 16:04:04,995 WARN L233 SmtUtils]: Spent 7.81s on a formula simplification that was a NOOP. DAG size: 7921 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-16 16:04:12,858 WARN L233 SmtUtils]: Spent 7.78s on a formula simplification that was a NOOP. DAG size: 7822 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-16 16:04:20,840 WARN L233 SmtUtils]: Spent 7.79s on a formula simplification that was a NOOP. DAG size: 7824 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-16 16:04:28,793 WARN L233 SmtUtils]: Spent 7.78s on a formula simplification that was a NOOP. DAG size: 7824 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-16 16:04:36,833 WARN L233 SmtUtils]: Spent 7.87s on a formula simplification that was a NOOP. DAG size: 7776 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-16 16:04:37,159 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-11-16 16:04:37,159 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:04:37,225 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-16 16:04:37,226 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:04:37,398 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:04:37,437 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:04:37,546 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:04:37,572 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:04:38,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 16:04:38,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-16 16:04:38,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 16:04:38,865 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:04:38,873 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:04:38,881 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:04:38,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 16:04:38,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 16:04:38,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-16 16:04:39,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:04:39,240 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:04:40,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-16 16:04:40,242 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:04:49,775 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 113 for LOIs [2022-11-16 16:04:50,007 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 182 for LOIs [2022-11-16 16:04:50,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 16:04:50,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 16:04:51,909 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 201 for LOIs [2022-11-16 16:04:51,954 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 205 for LOIs [2022-11-16 16:04:52,150 INFO L197 IcfgInterpreter]: Interpreting procedure bdc_gadget_ep_enable with input of size 223 for LOIs [2022-11-16 16:04:53,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:53,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:53,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:53,731 INFO L321 Elim1Store]: treesize reduction 125, result has 8.8 percent of original size [2022-11-16 16:04:53,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 336 treesize of output 333 [2022-11-16 16:04:53,973 INFO L217 Elim1Store]: Index analysis took 106 ms [2022-11-16 16:04:54,350 INFO L321 Elim1Store]: treesize reduction 234, result has 8.9 percent of original size [2022-11-16 16:04:54,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 351 treesize of output 342 [2022-11-16 16:04:54,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:56,110 INFO L321 Elim1Store]: treesize reduction 644, result has 18.7 percent of original size [2022-11-16 16:04:56,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 244 [2022-11-16 16:04:56,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:56,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:56,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:56,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:56,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:56,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:58,370 INFO L321 Elim1Store]: treesize reduction 1101, result has 21.6 percent of original size [2022-11-16 16:04:58,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 31 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 [2022-11-16 16:04:58,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:58,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:58,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:58,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:58,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:58,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:04:59,121 INFO L321 Elim1Store]: treesize reduction 1001, result has 21.3 percent of original size [2022-11-16 16:04:59,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 24 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