./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--host--ehci-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9c42c8b471bd3f5eb0961ccb5a29636ff44887b239ea3f28bd7f2f4f7de76e57 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:03:42,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:03:42,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:03:43,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:03:43,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:03:43,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:03:43,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:03:43,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:03:43,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:03:43,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:03:43,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:03:43,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:03:43,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:03:43,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:03:43,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:03:43,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:03:43,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:03:43,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:03:43,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:03:43,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:03:43,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:03:43,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:03:43,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:03:43,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:03:43,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:03:43,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:03:43,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:03:43,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:03:43,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:03:43,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:03:43,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:03:43,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:03:43,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:03:43,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:03:43,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:03:43,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:03:43,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:03:43,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:03:43,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:03:43,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:03:43,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:03:43,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 04:03:43,123 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:03:43,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:03:43,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:03:43,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:03:43,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:03:43,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:03:43,126 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:03:43,126 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:03:43,126 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:03:43,126 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:03:43,127 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:03:43,128 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:03:43,128 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:03:43,128 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:03:43,128 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:03:43,129 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:03:43,129 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:03:43,129 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:03:43,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:03:43,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:03:43,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:03:43,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:03:43,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:03:43,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:03:43,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:03:43,133 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:03:43,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:03:43,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:03:43,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:03:43,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:03:43,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:03:43,134 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:03:43,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:03:43,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:03:43,135 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:03:43,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:03:43,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:03:43,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:03:43,136 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_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c42c8b471bd3f5eb0961ccb5a29636ff44887b239ea3f28bd7f2f4f7de76e57 [2022-11-03 04:03:43,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:03:43,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:03:43,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:03:43,428 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:03:43,429 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:03:43,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i [2022-11-03 04:03:43,502 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/data/89f049583/f72815851c264edda6988f55306d7a6d/FLAG3f9e61ba0 [2022-11-03 04:03:44,580 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:03:44,580 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i [2022-11-03 04:03:44,674 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/data/89f049583/f72815851c264edda6988f55306d7a6d/FLAG3f9e61ba0 [2022-11-03 04:03:44,860 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/data/89f049583/f72815851c264edda6988f55306d7a6d [2022-11-03 04:03:44,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:03:44,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:03:44,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:03:44,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:03:44,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:03:44,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:03:44" (1/1) ... [2022-11-03 04:03:44,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@362a0530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:44, skipping insertion in model container [2022-11-03 04:03:44,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:03:44" (1/1) ... [2022-11-03 04:03:44,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:03:45,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:03:49,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i[465063,465076] [2022-11-03 04:03:49,402 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-03 04:03:49,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:03:49,479 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:03:50,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i[465063,465076] [2022-11-03 04:03:50,435 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-03 04:03:50,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:03:50,562 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:03:50,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:50 WrapperNode [2022-11-03 04:03:50,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:03:50,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:03:50,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:03:50,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:03:50,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:50" (1/1) ... [2022-11-03 04:03:50,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:50" (1/1) ... [2022-11-03 04:03:51,497 INFO L138 Inliner]: procedures = 391, calls = 6617, calls flagged for inlining = 164, calls inlined = 159, statements flattened = 14620 [2022-11-03 04:03:51,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:03:51,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:03:51,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:03:51,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:03:51,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:50" (1/1) ... [2022-11-03 04:03:51,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:50" (1/1) ... [2022-11-03 04:03:51,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:50" (1/1) ... [2022-11-03 04:03:51,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:50" (1/1) ... [2022-11-03 04:03:52,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:50" (1/1) ... [2022-11-03 04:03:52,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:50" (1/1) ... [2022-11-03 04:03:52,352 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:50" (1/1) ... [2022-11-03 04:03:52,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:50" (1/1) ... [2022-11-03 04:03:52,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:03:52,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:03:52,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:03:52,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:03:52,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:50" (1/1) ... [2022-11-03 04:03:52,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:03:52,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:03:52,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:03:52,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759f9ad5-4518-4c0b-8efb-65aec076baa5/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:03:52,697 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_hub_control [2022-11-03 04:03:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_hub_control [2022-11-03 04:03:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2022-11-03 04:03:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2022-11-03 04:03:52,698 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_qtd_free [2022-11-03 04:03:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_qtd_free [2022-11-03 04:03:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 04:03:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 04:03:52,699 INFO L130 BoogieDeclarations]: Found specification of procedure turn_on_io_watchdog [2022-11-03 04:03:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure turn_on_io_watchdog [2022-11-03 04:03:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure dbgp_external_startup [2022-11-03 04:03:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgp_external_startup [2022-11-03 04:03:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-03 04:03:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-03 04:03:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-03 04:03:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-03 04:03:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure set_ohci_hcfs [2022-11-03 04:03:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure set_ohci_hcfs [2022-11-03 04:03:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 04:03:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 04:03:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2022-11-03 04:03:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2022-11-03 04:03:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_to_hcd [2022-11-03 04:03:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_to_hcd [2022-11-03 04:03:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_endpoint_disable [2022-11-03 04:03:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_endpoint_disable [2022-11-03 04:03:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure qh_destroy [2022-11-03 04:03:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_destroy [2022-11-03 04:03:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure compute_tt_budget [2022-11-03 04:03:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_tt_budget [2022-11-03 04:03:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure end_free_itds [2022-11-03 04:03:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure end_free_itds [2022-11-03 04:03:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 04:03:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 04:03:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure tt_available [2022-11-03 04:03:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure tt_available [2022-11-03 04:03:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure start_unlink_intr [2022-11-03 04:03:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure start_unlink_intr [2022-11-03 04:03:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2022-11-03 04:03:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2022-11-03 04:03:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_port_handed_over [2022-11-03 04:03:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_port_handed_over [2022-11-03 04:03:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-11-03 04:03:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-11-03 04:03:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_read_frame_index [2022-11-03 04:03:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_read_frame_index [2022-11-03 04:03:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_port_speed [2022-11-03 04:03:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_port_speed [2022-11-03 04:03:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 04:03:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-11-03 04:03:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-11-03 04:03:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-11-03 04:03:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-11-03 04:03:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 04:03:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 04:03:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 04:03:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 04:03:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-11-03 04:03:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-11-03 04:03:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:03:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_command_buf [2022-11-03 04:03:52,713 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_command_buf [2022-11-03 04:03:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-03 04:03:52,713 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-03 04:03:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_remove_device [2022-11-03 04:03:52,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_remove_device [2022-11-03 04:03:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 04:03:52,714 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 04:03:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-03 04:03:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-03 04:03:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 04:03:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 04:03:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_endpoint_reset [2022-11-03 04:03:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_endpoint_reset [2022-11-03 04:03:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_setup [2022-11-03 04:03:52,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_setup [2022-11-03 04:03:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-03 04:03:52,717 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-03 04:03:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-11-03 04:03:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-11-03 04:03:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:03:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 04:03:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 04:03:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure qh_schedule [2022-11-03 04:03:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_schedule [2022-11-03 04:03:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_hub_status_data [2022-11-03 04:03:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_hub_status_data [2022-11-03 04:03:52,721 INFO L130 BoogieDeclarations]: Found specification of procedure check_intr_schedule [2022-11-03 04:03:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure check_intr_schedule [2022-11-03 04:03:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-03 04:03:52,722 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-03 04:03:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-03 04:03:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-03 04:03:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 04:03:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 04:03:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-03 04:03:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-03 04:03:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure iso_sched_alloc [2022-11-03 04:03:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure iso_sched_alloc [2022-11-03 04:03:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 04:03:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 04:03:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_silence_controller [2022-11-03 04:03:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_silence_controller [2022-11-03 04:03:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_clear_tt_buffer [2022-11-03 04:03:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_clear_tt_buffer [2022-11-03 04:03:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure submit_single_step_set_feature [2022-11-03 04:03:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_single_step_set_feature [2022-11-03 04:03:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_set_command_bit [2022-11-03 04:03:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_set_command_bit [2022-11-03 04:03:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_work [2022-11-03 04:03:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_work [2022-11-03 04:03:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 04:03:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 04:03:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:03:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-03 04:03:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_mem_cleanup [2022-11-03 04:03:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_mem_cleanup [2022-11-03 04:03:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-03 04:03:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-03 04:03:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 04:03:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 04:03:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:03:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_relinquish_port [2022-11-03 04:03:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_relinquish_port [2022-11-03 04:03:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_clear_tt_buffer_complete [2022-11-03 04:03:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_clear_tt_buffer_complete [2022-11-03 04:03:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure dbgp_reset_prep [2022-11-03 04:03:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgp_reset_prep [2022-11-03 04:03:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure usb_calc_bus_time [2022-11-03 04:03:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_calc_bus_time [2022-11-03 04:03:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure hrtimer_cancel [2022-11-03 04:03:52,744 INFO L138 BoogieDeclarations]: Found implementation of procedure hrtimer_cancel [2022-11-03 04:03:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 04:03:52,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 04:03:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:03:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-03 04:03:52,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-03 04:03:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure qh_urb_transaction [2022-11-03 04:03:52,745 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_urb_transaction [2022-11-03 04:03:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-03 04:03:52,745 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-03 04:03:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_quiesce [2022-11-03 04:03:52,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_quiesce [2022-11-03 04:03:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 04:03:52,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 04:03:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-03 04:03:52,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-03 04:03:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 04:03:52,747 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 04:03:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-03 04:03:52,747 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-03 04:03:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2022-11-03 04:03:52,748 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2022-11-03 04:03:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 04:03:52,748 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 04:03:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure qh_refresh [2022-11-03 04:03:52,748 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_refresh [2022-11-03 04:03:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 04:03:52,749 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 04:03:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_run [2022-11-03 04:03:52,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_run [2022-11-03 04:03:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-03 04:03:52,749 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-03 04:03:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 04:03:52,750 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 04:03:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure qh_append_tds [2022-11-03 04:03:52,750 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_append_tds [2022-11-03 04:03:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_qtd_alloc [2022-11-03 04:03:52,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_qtd_alloc [2022-11-03 04:03:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_writel [2022-11-03 04:03:52,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_writel [2022-11-03 04:03:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:03:52,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:03:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_readl [2022-11-03 04:03:52,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_readl [2022-11-03 04:03:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 04:03:52,752 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 04:03:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure single_unlink_async [2022-11-03 04:03:52,752 INFO L138 BoogieDeclarations]: Found implementation of procedure single_unlink_async [2022-11-03 04:03:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_reset [2022-11-03 04:03:52,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_reset [2022-11-03 04:03:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure iso_stream_find [2022-11-03 04:03:52,753 INFO L138 BoogieDeclarations]: Found implementation of procedure iso_stream_find [2022-11-03 04:03:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure end_unlink_async [2022-11-03 04:03:52,753 INFO L138 BoogieDeclarations]: Found implementation of procedure end_unlink_async [2022-11-03 04:03:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_status_buf [2022-11-03 04:03:52,754 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_status_buf [2022-11-03 04:03:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 04:03:52,754 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 04:03:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure reserve_release_intr_bandwidth [2022-11-03 04:03:52,754 INFO L138 BoogieDeclarations]: Found implementation of procedure reserve_release_intr_bandwidth [2022-11-03 04:03:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_stop [2022-11-03 04:03:52,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_stop [2022-11-03 04:03:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 04:03:52,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 04:03:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure qh_link_periodic [2022-11-03 04:03:52,755 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_link_periodic [2022-11-03 04:03:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_urb_enqueue [2022-11-03 04:03:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_urb_enqueue [2022-11-03 04:03:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-11-03 04:03:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-11-03 04:03:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-03 04:03:52,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-03 04:03:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_shutdown [2022-11-03 04:03:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_shutdown [2022-11-03 04:03:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-03 04:03:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-03 04:03:52,757 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 04:03:52,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 04:03:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 04:03:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 04:03:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_next_shadow [2022-11-03 04:03:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_next_shadow [2022-11-03 04:03:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2022-11-03 04:03:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2022-11-03 04:03:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-03 04:03:52,759 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-03 04:03:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure otg_start_hnp [2022-11-03 04:03:52,759 INFO L138 BoogieDeclarations]: Found implementation of procedure otg_start_hnp [2022-11-03 04:03:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 04:03:52,759 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 04:03:52,760 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2022-11-03 04:03:52,760 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2022-11-03 04:03:52,760 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 04:03:52,760 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 04:03:52,760 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_halt [2022-11-03 04:03:52,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_halt [2022-11-03 04:03:52,761 INFO L130 BoogieDeclarations]: Found specification of procedure reserve_release_iso_bandwidth [2022-11-03 04:03:52,761 INFO L138 BoogieDeclarations]: Found implementation of procedure reserve_release_iso_bandwidth [2022-11-03 04:03:52,761 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2022-11-03 04:03:52,761 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2022-11-03 04:03:52,761 INFO L130 BoogieDeclarations]: Found specification of procedure submit_async [2022-11-03 04:03:52,762 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_async [2022-11-03 04:03:52,762 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-03 04:03:52,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-03 04:03:52,763 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_handover_companion_ports [2022-11-03 04:03:52,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_handover_companion_ports [2022-11-03 04:03:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure start_free_itds [2022-11-03 04:03:52,768 INFO L138 BoogieDeclarations]: Found implementation of procedure start_free_itds [2022-11-03 04:03:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:03:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_port_power [2022-11-03 04:03:52,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_port_power [2022-11-03 04:03:52,769 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 04:03:52,769 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 04:03:52,769 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_urb [2022-11-03 04:03:52,770 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_urb [2022-11-03 04:03:52,772 INFO L130 BoogieDeclarations]: Found specification of procedure bus_to_hcd [2022-11-03 04:03:52,773 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_to_hcd [2022-11-03 04:03:52,773 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_list_free [2022-11-03 04:03:52,773 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_list_free [2022-11-03 04:03:52,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:03:52,773 INFO L130 BoogieDeclarations]: Found specification of procedure usb_amd_quirk_pll_enable [2022-11-03 04:03:52,773 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_amd_quirk_pll_enable [2022-11-03 04:03:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-03 04:03:52,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-03 04:03:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_fill [2022-11-03 04:03:52,774 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_fill [2022-11-03 04:03:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-03 04:03:52,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-03 04:03:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_urb_dequeue [2022-11-03 04:03:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_urb_dequeue [2022-11-03 04:03:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_unlink_wait_intr [2022-11-03 04:03:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_unlink_wait_intr [2022-11-03 04:03:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure list_is_singular [2022-11-03 04:03:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure list_is_singular [2022-11-03 04:03:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_handle_controller_death [2022-11-03 04:03:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_handle_controller_death [2022-11-03 04:03:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:03:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_enable_event [2022-11-03 04:03:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_enable_event [2022-11-03 04:03:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure start_iaa_cycle [2022-11-03 04:03:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure start_iaa_cycle [2022-11-03 04:03:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-11-03 04:03:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_get_frame [2022-11-03 04:03:52,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_get_frame [2022-11-03 04:03:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure iso_stream_schedule [2022-11-03 04:03:52,777 INFO L138 BoogieDeclarations]: Found implementation of procedure iso_stream_schedule [2022-11-03 04:03:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_bus_resume [2022-11-03 04:03:52,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_bus_resume [2022-11-03 04:03:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_port_buf [2022-11-03 04:03:52,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_port_buf [2022-11-03 04:03:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure qh_completions [2022-11-03 04:03:52,778 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_completions [2022-11-03 04:03:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure disable_periodic [2022-11-03 04:03:52,778 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_periodic [2022-11-03 04:03:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure enable_periodic [2022-11-03 04:03:52,779 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_periodic [2022-11-03 04:03:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure qh_lines [2022-11-03 04:03:52,779 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_lines [2022-11-03 04:03:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_end_port_resume [2022-11-03 04:03:52,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_end_port_resume [2022-11-03 04:03:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 04:03:52,780 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 04:03:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_qh_alloc [2022-11-03 04:03:52,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_qh_alloc [2022-11-03 04:03:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_irq [2022-11-03 04:03:52,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_irq [2022-11-03 04:03:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-11-03 04:03:52,781 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-11-03 04:03:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_handshake [2022-11-03 04:03:52,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_handshake [2022-11-03 04:03:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_clear_command_bit [2022-11-03 04:03:52,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_clear_command_bit [2022-11-03 04:03:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 04:03:52,781 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 04:03:52,782 INFO L130 BoogieDeclarations]: Found specification of procedure bandwidth_dbg [2022-11-03 04:03:52,782 INFO L138 BoogieDeclarations]: Found implementation of procedure bandwidth_dbg [2022-11-03 04:03:52,782 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 04:03:52,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 04:03:52,782 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-03 04:03:52,782 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-03 04:03:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_start_port_resume [2022-11-03 04:03:52,783 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_start_port_resume [2022-11-03 04:03:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:03:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_handle_intr_unlinks [2022-11-03 04:03:52,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_handle_intr_unlinks [2022-11-03 04:03:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_link_urb_to_ep [2022-11-03 04:03:52,783 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_link_urb_to_ep [2022-11-03 04:03:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-03 04:03:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-03 04:03:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 04:03:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 04:03:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure iso_sched_free [2022-11-03 04:03:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure iso_sched_free [2022-11-03 04:03:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_handle_start_intr_unlinks [2022-11-03 04:03:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_handle_start_intr_unlinks [2022-11-03 04:03:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure usb_amd_quirk_pll_disable [2022-11-03 04:03:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_amd_quirk_pll_disable [2022-11-03 04:03:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 04:03:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 04:03:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_poll_ASS [2022-11-03 04:03:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_poll_ASS [2022-11-03 04:03:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 04:03:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 04:03:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure qh_link_async [2022-11-03 04:03:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_link_async [2022-11-03 04:03:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_bus_suspend [2022-11-03 04:03:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_bus_suspend [2022-11-03 04:03:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure check_period [2022-11-03 04:03:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure check_period [2022-11-03 04:03:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-03 04:03:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-03 04:03:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 04:03:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 04:03:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure shadow_next_periodic [2022-11-03 04:03:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure shadow_next_periodic [2022-11-03 04:03:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_urb_done [2022-11-03 04:03:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_urb_done [2022-11-03 04:03:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_qtd_init [2022-11-03 04:03:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_qtd_init [2022-11-03 04:03:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2022-11-03 04:03:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2022-11-03 04:03:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure set_owner [2022-11-03 04:03:52,789 INFO L138 BoogieDeclarations]: Found implementation of procedure set_owner [2022-11-03 04:03:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2022-11-03 04:03:52,789 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2022-11-03 04:03:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure start_unlink_async [2022-11-03 04:03:52,789 INFO L138 BoogieDeclarations]: Found implementation of procedure start_unlink_async [2022-11-03 04:03:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 04:03:52,790 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 04:03:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2022-11-03 04:03:52,790 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2022-11-03 04:03:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ehci [2022-11-03 04:03:52,790 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ehci [2022-11-03 04:03:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure find_tt [2022-11-03 04:03:52,790 INFO L138 BoogieDeclarations]: Found implementation of procedure find_tt [2022-11-03 04:03:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 04:03:52,791 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 04:03:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:03:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_poll_PSS [2022-11-03 04:03:52,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_poll_PSS [2022-11-03 04:03:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-03 04:03:52,791 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-03 04:03:52,793 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-11-03 04:03:52,793 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-11-03 04:03:54,451 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:03:54,458 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:04:06,620 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 04:04:27,507 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:04:32,637 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:04:32,637 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 04:04:32,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:04:32 BoogieIcfgContainer [2022-11-03 04:04:32,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:04:32,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:04:32,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:04:32,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:04:32,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:03:44" (1/3) ... [2022-11-03 04:04:32,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a453df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:04:32, skipping insertion in model container [2022-11-03 04:04:32,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:50" (2/3) ... [2022-11-03 04:04:32,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a453df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:04:32, skipping insertion in model container [2022-11-03 04:04:32,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:04:32" (3/3) ... [2022-11-03 04:04:32,655 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i [2022-11-03 04:04:32,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:04:32,677 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:04:32,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:04:32,816 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;@3773c141, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:04:32,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:04:32,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 4129 states, 2530 states have (on average 1.3482213438735178) internal successors, (3411), 2675 states have internal predecessors, (3411), 1418 states have call successors, (1418), 180 states have call predecessors, (1418), 179 states have return successors, (1409), 1369 states have call predecessors, (1409), 1409 states have call successors, (1409) [2022-11-03 04:04:32,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-11-03 04:04:32,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:32,889 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:32,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:32,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:32,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1649567920, now seen corresponding path program 1 times [2022-11-03 04:04:32,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:32,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701479017] [2022-11-03 04:04:32,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:32,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:35,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-11-03 04:04:35,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:35,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701479017] [2022-11-03 04:04:35,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701479017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:35,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:35,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:04:35,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434860273] [2022-11-03 04:04:35,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:35,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:04:35,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:35,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:04:35,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:35,516 INFO L87 Difference]: Start difference. First operand has 4129 states, 2530 states have (on average 1.3482213438735178) internal successors, (3411), 2675 states have internal predecessors, (3411), 1418 states have call successors, (1418), 180 states have call predecessors, (1418), 179 states have return successors, (1409), 1369 states have call predecessors, (1409), 1409 states have call successors, (1409) Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-03 04:04:37,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:41,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:44,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:04:46,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:04:48,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:04:54,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:54,531 INFO L93 Difference]: Finished difference Result 12057 states and 18454 transitions. [2022-11-03 04:04:54,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:04:54,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 392 [2022-11-03 04:04:54,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:54,643 INFO L225 Difference]: With dead ends: 12057 [2022-11-03 04:04:54,643 INFO L226 Difference]: Without dead ends: 7955 [2022-11-03 04:04:54,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:54,705 INFO L413 NwaCegarLoop]: 7123 mSDtfsCounter, 5862 mSDsluCounter, 6215 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5869 SdHoareTripleChecker+Valid, 12922 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:54,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5869 Valid, 12922 Invalid, 859 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 853 Invalid, 5 Unknown, 0 Unchecked, 18.2s Time] [2022-11-03 04:04:54,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2022-11-03 04:04:55,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 7946. [2022-11-03 04:04:55,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7946 states, 4894 states have (on average 1.3479771148344912) internal successors, (6597), 5163 states have internal predecessors, (6597), 2706 states have call successors, (2706), 346 states have call predecessors, (2706), 345 states have return successors, (2711), 2621 states have call predecessors, (2711), 2704 states have call successors, (2711) [2022-11-03 04:04:55,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7946 states to 7946 states and 12014 transitions. [2022-11-03 04:04:55,718 INFO L78 Accepts]: Start accepts. Automaton has 7946 states and 12014 transitions. Word has length 392 [2022-11-03 04:04:55,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:55,727 INFO L495 AbstractCegarLoop]: Abstraction has 7946 states and 12014 transitions. [2022-11-03 04:04:55,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-03 04:04:55,729 INFO L276 IsEmpty]: Start isEmpty. Operand 7946 states and 12014 transitions. [2022-11-03 04:04:55,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-11-03 04:04:55,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:55,747 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:55,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:04:55,748 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:55,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:55,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1220302329, now seen corresponding path program 1 times [2022-11-03 04:04:55,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:55,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238094036] [2022-11-03 04:04:55,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:55,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:57,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-11-03 04:04:57,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:57,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238094036] [2022-11-03 04:04:57,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238094036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:57,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:57,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:04:57,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469194661] [2022-11-03 04:04:57,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:57,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:04:57,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:57,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:04:57,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:57,189 INFO L87 Difference]: Start difference. First operand 7946 states and 12014 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-03 04:04:59,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:03,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:05,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:05:07,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:09,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:05:15,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:15,294 INFO L93 Difference]: Finished difference Result 23459 states and 35488 transitions. [2022-11-03 04:05:15,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:05:15,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 394 [2022-11-03 04:05:15,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:15,429 INFO L225 Difference]: With dead ends: 23459 [2022-11-03 04:05:15,430 INFO L226 Difference]: Without dead ends: 15592 [2022-11-03 04:05:15,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:05:15,494 INFO L413 NwaCegarLoop]: 7092 mSDtfsCounter, 5791 mSDsluCounter, 6168 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5798 SdHoareTripleChecker+Valid, 12847 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:15,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5798 Valid, 12847 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 848 Invalid, 5 Unknown, 0 Unchecked, 17.4s Time] [2022-11-03 04:05:15,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15592 states. [2022-11-03 04:05:16,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15592 to 15582. [2022-11-03 04:05:16,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15582 states, 9614 states have (on average 1.3509465363012274) internal successors, (12988), 10153 states have internal predecessors, (12988), 5286 states have call successors, (5286), 682 states have call predecessors, (5286), 681 states have return successors, (5305), 5115 states have call predecessors, (5305), 5284 states have call successors, (5305) [2022-11-03 04:05:16,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15582 states to 15582 states and 23579 transitions. [2022-11-03 04:05:16,825 INFO L78 Accepts]: Start accepts. Automaton has 15582 states and 23579 transitions. Word has length 394 [2022-11-03 04:05:16,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:16,827 INFO L495 AbstractCegarLoop]: Abstraction has 15582 states and 23579 transitions. [2022-11-03 04:05:16,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-03 04:05:16,828 INFO L276 IsEmpty]: Start isEmpty. Operand 15582 states and 23579 transitions. [2022-11-03 04:05:16,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-11-03 04:05:16,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:16,839 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:16,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:05:16,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:16,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:16,840 INFO L85 PathProgramCache]: Analyzing trace with hash -390839488, now seen corresponding path program 1 times [2022-11-03 04:05:16,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:16,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096944815] [2022-11-03 04:05:16,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:16,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:18,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-11-03 04:05:18,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:18,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096944815] [2022-11-03 04:05:18,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096944815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:18,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:18,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:05:18,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355719251] [2022-11-03 04:05:18,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:18,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:05:18,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:18,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:05:18,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:05:18,193 INFO L87 Difference]: Start difference. First operand 15582 states and 23579 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-03 04:05:20,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:24,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:25,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:05:27,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:05:30,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:36,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:05:37,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:37,905 INFO L93 Difference]: Finished difference Result 46360 states and 70172 transitions. [2022-11-03 04:05:37,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:05:37,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 397 [2022-11-03 04:05:37,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:38,147 INFO L225 Difference]: With dead ends: 46360 [2022-11-03 04:05:38,147 INFO L226 Difference]: Without dead ends: 30857 [2022-11-03 04:05:38,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:05:38,256 INFO L413 NwaCegarLoop]: 7125 mSDtfsCounter, 5811 mSDsluCounter, 6170 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5818 SdHoareTripleChecker+Valid, 12880 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:38,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5818 Valid, 12880 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 853 Invalid, 5 Unknown, 0 Unchecked, 18.5s Time] [2022-11-03 04:05:38,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30857 states. [2022-11-03 04:05:40,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30857 to 30848. [2022-11-03 04:05:40,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30848 states, 19042 states have (on average 1.3517487658859364) internal successors, (25740), 20120 states have internal predecessors, (25740), 10452 states have call successors, (10452), 1354 states have call predecessors, (10452), 1353 states have return successors, (10505), 10110 states have call predecessors, (10505), 10450 states have call successors, (10505) [2022-11-03 04:05:41,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30848 states to 30848 states and 46697 transitions. [2022-11-03 04:05:41,117 INFO L78 Accepts]: Start accepts. Automaton has 30848 states and 46697 transitions. Word has length 397 [2022-11-03 04:05:41,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:41,123 INFO L495 AbstractCegarLoop]: Abstraction has 30848 states and 46697 transitions. [2022-11-03 04:05:41,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-03 04:05:41,124 INFO L276 IsEmpty]: Start isEmpty. Operand 30848 states and 46697 transitions. [2022-11-03 04:05:41,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-11-03 04:05:41,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:41,137 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:41,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:05:41,138 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:41,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:41,140 INFO L85 PathProgramCache]: Analyzing trace with hash 772189219, now seen corresponding path program 1 times [2022-11-03 04:05:41,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:41,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371132978] [2022-11-03 04:05:41,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:41,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:42,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-11-03 04:05:42,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:42,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371132978] [2022-11-03 04:05:42,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371132978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:42,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:42,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:05:42,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597598951] [2022-11-03 04:05:42,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:42,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:05:42,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:42,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:05:42,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:05:42,509 INFO L87 Difference]: Start difference. First operand 30848 states and 46697 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-03 04:05:44,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:48,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:50,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:05:52,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:05:55,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:06:02,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:02,068 INFO L93 Difference]: Finished difference Result 91875 states and 139124 transitions. [2022-11-03 04:06:02,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:06:02,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 399 [2022-11-03 04:06:02,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:02,665 INFO L225 Difference]: With dead ends: 91875 [2022-11-03 04:06:02,665 INFO L226 Difference]: Without dead ends: 61106 [2022-11-03 04:06:02,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:02,857 INFO L413 NwaCegarLoop]: 7156 mSDtfsCounter, 5766 mSDsluCounter, 6168 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5773 SdHoareTripleChecker+Valid, 12910 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:02,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5773 Valid, 12910 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 861 Invalid, 5 Unknown, 0 Unchecked, 17.2s Time] [2022-11-03 04:06:02,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61106 states. [2022-11-03 04:06:07,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61106 to 61097. [2022-11-03 04:06:07,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61097 states, 37734 states have (on average 1.3525732760905285) internal successors, (51038), 39882 states have internal predecessors, (51038), 20686 states have call successors, (20686), 2677 states have call predecessors, (20686), 2676 states have return successors, (20803), 20008 states have call predecessors, (20803), 20684 states have call successors, (20803) [2022-11-03 04:06:07,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61097 states to 61097 states and 92527 transitions. [2022-11-03 04:06:07,830 INFO L78 Accepts]: Start accepts. Automaton has 61097 states and 92527 transitions. Word has length 399 [2022-11-03 04:06:07,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:07,832 INFO L495 AbstractCegarLoop]: Abstraction has 61097 states and 92527 transitions. [2022-11-03 04:06:07,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-03 04:06:07,832 INFO L276 IsEmpty]: Start isEmpty. Operand 61097 states and 92527 transitions. [2022-11-03 04:06:08,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-11-03 04:06:08,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:08,201 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:08,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:06:08,211 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:08,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:08,212 INFO L85 PathProgramCache]: Analyzing trace with hash 488372068, now seen corresponding path program 1 times [2022-11-03 04:06:08,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:08,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60510600] [2022-11-03 04:06:08,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:08,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:09,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-11-03 04:06:09,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:09,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60510600] [2022-11-03 04:06:09,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60510600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:09,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:09,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:06:09,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990478228] [2022-11-03 04:06:09,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:09,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:06:09,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:09,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:06:09,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:09,865 INFO L87 Difference]: Start difference. First operand 61097 states and 92527 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-03 04:06:12,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:19,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:23,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:25,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:06:30,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:30,698 INFO L93 Difference]: Finished difference Result 161411 states and 243461 transitions. [2022-11-03 04:06:30,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:06:30,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 427 [2022-11-03 04:06:30,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:31,550 INFO L225 Difference]: With dead ends: 161411 [2022-11-03 04:06:31,551 INFO L226 Difference]: Without dead ends: 100393 [2022-11-03 04:06:31,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:06:31,875 INFO L413 NwaCegarLoop]: 9050 mSDtfsCounter, 3954 mSDsluCounter, 6034 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3956 SdHoareTripleChecker+Valid, 14670 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:31,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3956 Valid, 14670 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1221 Invalid, 4 Unknown, 0 Unchecked, 16.5s Time] [2022-11-03 04:06:32,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100393 states. [2022-11-03 04:06:38,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100393 to 100384. [2022-11-03 04:06:38,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100384 states, 61942 states have (on average 1.349633528139227) internal successors, (83599), 65525 states have internal predecessors, (83599), 33640 states have call successors, (33640), 4802 states have call predecessors, (33640), 4801 states have return successors, (33787), 32474 states have call predecessors, (33787), 33638 states have call successors, (33787) [2022-11-03 04:06:39,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100384 states to 100384 states and 151026 transitions. [2022-11-03 04:06:39,454 INFO L78 Accepts]: Start accepts. Automaton has 100384 states and 151026 transitions. Word has length 427 [2022-11-03 04:06:39,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:39,455 INFO L495 AbstractCegarLoop]: Abstraction has 100384 states and 151026 transitions. [2022-11-03 04:06:39,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-03 04:06:39,456 INFO L276 IsEmpty]: Start isEmpty. Operand 100384 states and 151026 transitions. [2022-11-03 04:06:39,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2022-11-03 04:06:39,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:39,482 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 22, 22, 22, 22, 22, 22, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:39,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:06:39,482 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:39,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:39,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1340365813, now seen corresponding path program 1 times [2022-11-03 04:06:39,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:39,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988672478] [2022-11-03 04:06:39,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:39,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:41,743 INFO L134 CoverageAnalysis]: Checked inductivity of 5969 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2022-11-03 04:06:41,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:41,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988672478] [2022-11-03 04:06:41,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988672478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:41,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:41,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:06:41,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407302174] [2022-11-03 04:06:41,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:41,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:06:41,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:41,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:06:41,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:06:41,748 INFO L87 Difference]: Start difference. First operand 100384 states and 151026 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-03 04:06:43,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:52,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:06:53,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:06:55,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:06:56,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:06:58,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:01,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:07:08,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:08,243 INFO L93 Difference]: Finished difference Result 200785 states and 302064 transitions. [2022-11-03 04:07:08,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:07:08,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 588 [2022-11-03 04:07:08,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:09,195 INFO L225 Difference]: With dead ends: 200785 [2022-11-03 04:07:09,196 INFO L226 Difference]: Without dead ends: 100384 [2022-11-03 04:07:09,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:07:09,563 INFO L413 NwaCegarLoop]: 5767 mSDtfsCounter, 3 mSDsluCounter, 12361 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 17297 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:09,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 17297 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1256 Invalid, 5 Unknown, 0 Unchecked, 21.6s Time] [2022-11-03 04:07:09,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100384 states. [2022-11-03 04:07:15,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100384 to 100384. [2022-11-03 04:07:15,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100384 states, 61942 states have (on average 1.349116915824481) internal successors, (83567), 65525 states have internal predecessors, (83567), 33640 states have call successors, (33640), 4802 states have call predecessors, (33640), 4801 states have return successors, (33787), 32474 states have call predecessors, (33787), 33638 states have call successors, (33787) [2022-11-03 04:07:16,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100384 states to 100384 states and 150994 transitions. [2022-11-03 04:07:16,340 INFO L78 Accepts]: Start accepts. Automaton has 100384 states and 150994 transitions. Word has length 588 [2022-11-03 04:07:16,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:16,341 INFO L495 AbstractCegarLoop]: Abstraction has 100384 states and 150994 transitions. [2022-11-03 04:07:16,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-03 04:07:16,342 INFO L276 IsEmpty]: Start isEmpty. Operand 100384 states and 150994 transitions. [2022-11-03 04:07:16,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-11-03 04:07:16,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:16,350 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 22, 22, 22, 22, 22, 22, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:16,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 04:07:16,350 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:16,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:16,351 INFO L85 PathProgramCache]: Analyzing trace with hash -2092003036, now seen corresponding path program 1 times [2022-11-03 04:07:16,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:16,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088142105] [2022-11-03 04:07:16,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:16,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:18,473 INFO L134 CoverageAnalysis]: Checked inductivity of 5969 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2022-11-03 04:07:18,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:18,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088142105] [2022-11-03 04:07:18,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088142105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:18,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:18,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:07:18,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688500128] [2022-11-03 04:07:18,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:18,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:07:18,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:18,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:07:18,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:07:18,477 INFO L87 Difference]: Start difference. First operand 100384 states and 150994 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-03 04:07:20,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:28,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:32,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:07:34,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 04:07:42,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:42,001 INFO L93 Difference]: Finished difference Result 249596 states and 375480 transitions. [2022-11-03 04:07:42,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:07:42,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 612 [2022-11-03 04:07:42,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted.