./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS --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 637058e9c434875c2a607ff053c6fcb810c5a78083685ed0943116abd98a4161 --- 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-8393723 [2022-11-19 08:18:07,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:18:07,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:18:07,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:18:07,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:18:07,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:18:07,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:18:07,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:18:07,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:18:07,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:18:07,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:18:07,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:18:07,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:18:07,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:18:07,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:18:07,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:18:07,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:18:07,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:18:07,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:18:07,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:18:07,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:18:07,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:18:07,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:18:07,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:18:08,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:18:08,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:18:08,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:18:08,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:18:08,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:18:08,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:18:08,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:18:08,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:18:08,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:18:08,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:18:08,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:18:08,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:18:08,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:18:08,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:18:08,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:18:08,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:18:08,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:18:08,015 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:18:08,055 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:18:08,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:18:08,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:18:08,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:18:08,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:18:08,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:18:08,058 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:18:08,058 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:18:08,058 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:18:08,058 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:18:08,059 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:18:08,059 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:18:08,060 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:18:08,060 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:18:08,060 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:18:08,060 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:18:08,060 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:18:08,061 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:18:08,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:18:08,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:18:08,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:18:08,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:18:08,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:18:08,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:18:08,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:18:08,064 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:18:08,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:18:08,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:18:08,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:18:08,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:18:08,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:18:08,066 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:18:08,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:18:08,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:18:08,074 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:18:08,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:18:08,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:18:08,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:18:08,075 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_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 637058e9c434875c2a607ff053c6fcb810c5a78083685ed0943116abd98a4161 [2022-11-19 08:18:08,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:18:08,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:18:08,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:18:08,468 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:18:08,469 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:18:08,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2022-11-19 08:18:08,548 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/data/1da67d873/a750d32bd2684ef580eb3ba75e72f14c/FLAG3fd5cc176 [2022-11-19 08:18:09,443 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:18:09,444 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2022-11-19 08:18:09,499 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/data/1da67d873/a750d32bd2684ef580eb3ba75e72f14c/FLAG3fd5cc176 [2022-11-19 08:18:09,899 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/data/1da67d873/a750d32bd2684ef580eb3ba75e72f14c [2022-11-19 08:18:09,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:18:09,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:18:09,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:18:09,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:18:09,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:18:09,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:18:09" (1/1) ... [2022-11-19 08:18:09,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9a8d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:09, skipping insertion in model container [2022-11-19 08:18:09,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:18:09" (1/1) ... [2022-11-19 08:18:09,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:18:10,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:18:11,518 WARN L234 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_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i[222523,222536] [2022-11-19 08:18:11,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:18:11,672 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:18:12,232 WARN L234 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_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i[222523,222536] [2022-11-19 08:18:12,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:18:12,302 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:18:12,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:12 WrapperNode [2022-11-19 08:18:12,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:18:12,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:18:12,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:18:12,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:18:12,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:12" (1/1) ... [2022-11-19 08:18:12,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:12" (1/1) ... [2022-11-19 08:18:12,516 INFO L138 Inliner]: procedures = 127, calls = 982, calls flagged for inlining = 54, calls inlined = 42, statements flattened = 885 [2022-11-19 08:18:12,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:18:12,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:18:12,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:18:12,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:18:12,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:12" (1/1) ... [2022-11-19 08:18:12,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:12" (1/1) ... [2022-11-19 08:18:12,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:12" (1/1) ... [2022-11-19 08:18:12,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:12" (1/1) ... [2022-11-19 08:18:12,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:12" (1/1) ... [2022-11-19 08:18:12,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:12" (1/1) ... [2022-11-19 08:18:12,605 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:12" (1/1) ... [2022-11-19 08:18:12,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:12" (1/1) ... [2022-11-19 08:18:12,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:18:12,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:18:12,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:18:12,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:18:12,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:12" (1/1) ... [2022-11-19 08:18:12,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:18:12,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:18:12,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:18:12,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:18:12,739 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 08:18:12,739 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 08:18:12,739 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_exit [2022-11-19 08:18:12,739 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_exit [2022-11-19 08:18:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-19 08:18:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-19 08:18:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:18:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-19 08:18:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-19 08:18:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:18:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:18:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_exit [2022-11-19 08:18:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_exit [2022-11-19 08:18:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:18:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 08:18:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 08:18:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:18:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:18:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kfree [2022-11-19 08:18:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kfree [2022-11-19 08:18:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:18:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:18:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:18:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:18:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_exit [2022-11-19 08:18:12,744 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_exit [2022-11-19 08:18:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:18:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-19 08:18:12,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-19 08:18:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:18:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:18:12,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:18:13,422 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:18:13,424 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:18:15,279 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:18:15,878 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:18:15,879 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:18:15,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:18:15 BoogieIcfgContainer [2022-11-19 08:18:15,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:18:15,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:18:15,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:18:15,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:18:15,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:18:09" (1/3) ... [2022-11-19 08:18:15,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47141f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:18:15, skipping insertion in model container [2022-11-19 08:18:15,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:18:12" (2/3) ... [2022-11-19 08:18:15,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47141f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:18:15, skipping insertion in model container [2022-11-19 08:18:15,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:18:15" (3/3) ... [2022-11-19 08:18:15,893 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2022-11-19 08:18:15,915 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:18:15,916 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:18:15,977 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:18:15,984 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;@7f7c782b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:18:15,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:18:15,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 74 states have (on average 1.472972972972973) internal successors, (109), 80 states have internal predecessors, (109), 24 states have call successors, (24), 11 states have call predecessors, (24), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-11-19 08:18:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:18:15,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:18:16,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:18:16,001 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:18:16,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:18:16,011 INFO L85 PathProgramCache]: Analyzing trace with hash 931230022, now seen corresponding path program 1 times [2022-11-19 08:18:16,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:18:16,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639574075] [2022-11-19 08:18:16,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:18:16,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:18:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:18:16,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:18:16,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:18:16,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639574075] [2022-11-19 08:18:16,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639574075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:18:16,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:18:16,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:18:16,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759701877] [2022-11-19 08:18:16,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:18:16,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:18:16,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:18:16,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:18:16,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:16,737 INFO L87 Difference]: Start difference. First operand has 111 states, 74 states have (on average 1.472972972972973) internal successors, (109), 80 states have internal predecessors, (109), 24 states have call successors, (24), 11 states have call predecessors, (24), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:18:18,837 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 [] [2022-11-19 08:18:19,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:18:19,139 INFO L93 Difference]: Finished difference Result 280 states and 393 transitions. [2022-11-19 08:18:19,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:18:19,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:18:19,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:18:19,165 INFO L225 Difference]: With dead ends: 280 [2022-11-19 08:18:19,165 INFO L226 Difference]: Without dead ends: 166 [2022-11-19 08:18:19,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:19,176 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 70 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:18:19,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 235 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 08:18:19,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-19 08:18:19,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-19 08:18:19,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 111 states have (on average 1.3963963963963963) internal successors, (155), 115 states have internal predecessors, (155), 36 states have call successors, (36), 19 states have call predecessors, (36), 18 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-11-19 08:18:19,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 224 transitions. [2022-11-19 08:18:19,248 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 224 transitions. Word has length 11 [2022-11-19 08:18:19,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:18:19,249 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 224 transitions. [2022-11-19 08:18:19,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:18:19,249 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 224 transitions. [2022-11-19 08:18:19,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:18:19,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:18:19,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:18:19,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:18:19,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:18:19,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:18:19,256 INFO L85 PathProgramCache]: Analyzing trace with hash 349357486, now seen corresponding path program 1 times [2022-11-19 08:18:19,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:18:19,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682300731] [2022-11-19 08:18:19,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:18:19,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:18:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:18:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:18:19,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:18:19,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682300731] [2022-11-19 08:18:19,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682300731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:18:19,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:18:19,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:18:19,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269934920] [2022-11-19 08:18:19,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:18:19,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:18:19,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:18:19,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:18:19,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:19,409 INFO L87 Difference]: Start difference. First operand 166 states and 224 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:18:21,450 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 [] [2022-11-19 08:18:21,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:18:21,738 INFO L93 Difference]: Finished difference Result 233 states and 310 transitions. [2022-11-19 08:18:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:18:21,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 08:18:21,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:18:21,741 INFO L225 Difference]: With dead ends: 233 [2022-11-19 08:18:21,741 INFO L226 Difference]: Without dead ends: 230 [2022-11-19 08:18:21,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:21,742 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 78 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:18:21,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 228 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 08:18:21,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-19 08:18:21,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2022-11-19 08:18:21,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 153 states have (on average 1.392156862745098) internal successors, (213), 157 states have internal predecessors, (213), 48 states have call successors, (48), 27 states have call predecessors, (48), 26 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-19 08:18:21,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 306 transitions. [2022-11-19 08:18:21,786 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 306 transitions. Word has length 13 [2022-11-19 08:18:21,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:18:21,795 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 306 transitions. [2022-11-19 08:18:21,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:18:21,796 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 306 transitions. [2022-11-19 08:18:21,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 08:18:21,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:18:21,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:18:21,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:18:21,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:18:21,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:18:21,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2054920456, now seen corresponding path program 1 times [2022-11-19 08:18:21,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:18:21,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65981199] [2022-11-19 08:18:21,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:18:21,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:18:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:18:21,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:18:21,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:18:21,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65981199] [2022-11-19 08:18:21,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65981199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:18:21,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:18:21,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:18:21,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747837083] [2022-11-19 08:18:21,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:18:21,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:18:21,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:18:21,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:18:21,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:21,979 INFO L87 Difference]: Start difference. First operand 228 states and 306 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:18:23,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:23,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:18:23,956 INFO L93 Difference]: Finished difference Result 230 states and 307 transitions. [2022-11-19 08:18:23,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:18:23,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-19 08:18:23,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:18:23,959 INFO L225 Difference]: With dead ends: 230 [2022-11-19 08:18:23,959 INFO L226 Difference]: Without dead ends: 227 [2022-11-19 08:18:23,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:23,961 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 136 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:18:23,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 105 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-19 08:18:23,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-19 08:18:23,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2022-11-19 08:18:23,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 153 states have (on average 1.3856209150326797) internal successors, (212), 156 states have internal predecessors, (212), 47 states have call successors, (47), 27 states have call predecessors, (47), 26 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-19 08:18:23,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 304 transitions. [2022-11-19 08:18:23,988 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 304 transitions. Word has length 14 [2022-11-19 08:18:23,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:18:23,989 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 304 transitions. [2022-11-19 08:18:23,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:18:23,989 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 304 transitions. [2022-11-19 08:18:23,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 08:18:23,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:18:23,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:18:23,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:18:23,991 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:18:23,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:18:23,991 INFO L85 PathProgramCache]: Analyzing trace with hash 721879537, now seen corresponding path program 1 times [2022-11-19 08:18:23,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:18:23,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873389076] [2022-11-19 08:18:23,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:18:23,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:18:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:18:24,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:18:24,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:18:24,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873389076] [2022-11-19 08:18:24,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873389076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:18:24,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:18:24,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:18:24,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860527348] [2022-11-19 08:18:24,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:18:24,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:18:24,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:18:24,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:18:24,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:24,150 INFO L87 Difference]: Start difference. First operand 227 states and 304 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:18:26,183 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 [] [2022-11-19 08:18:26,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:18:26,375 INFO L93 Difference]: Finished difference Result 232 states and 308 transitions. [2022-11-19 08:18:26,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:18:26,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-19 08:18:26,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:18:26,377 INFO L225 Difference]: With dead ends: 232 [2022-11-19 08:18:26,377 INFO L226 Difference]: Without dead ends: 225 [2022-11-19 08:18:26,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:26,379 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 71 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:18:26,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 231 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-19 08:18:26,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-11-19 08:18:26,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2022-11-19 08:18:26,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 151 states have (on average 1.3774834437086092) internal successors, (208), 154 states have internal predecessors, (208), 47 states have call successors, (47), 27 states have call predecessors, (47), 26 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-19 08:18:26,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 300 transitions. [2022-11-19 08:18:26,403 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 300 transitions. Word has length 15 [2022-11-19 08:18:26,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:18:26,404 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 300 transitions. [2022-11-19 08:18:26,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:18:26,404 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 300 transitions. [2022-11-19 08:18:26,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-19 08:18:26,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:18:26,406 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 08:18:26,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:18:26,407 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:18:26,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:18:26,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1455355392, now seen corresponding path program 1 times [2022-11-19 08:18:26,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:18:26,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116296718] [2022-11-19 08:18:26,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:18:26,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:18:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:18:26,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:18:26,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:18:26,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116296718] [2022-11-19 08:18:26,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116296718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:18:26,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:18:26,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:18:26,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168393903] [2022-11-19 08:18:26,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:18:26,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:18:26,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:18:26,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:18:26,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:26,525 INFO L87 Difference]: Start difference. First operand 225 states and 300 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:18:27,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:28,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:18:28,618 INFO L93 Difference]: Finished difference Result 425 states and 579 transitions. [2022-11-19 08:18:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:18:28,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-11-19 08:18:28,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:18:28,620 INFO L225 Difference]: With dead ends: 425 [2022-11-19 08:18:28,621 INFO L226 Difference]: Without dead ends: 201 [2022-11-19 08:18:28,622 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 [2022-11-19 08:18:28,623 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 20 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:18:28,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 208 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-19 08:18:28,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-19 08:18:28,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 193. [2022-11-19 08:18:28,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 139 states have (on average 1.4460431654676258) internal successors, (201), 142 states have internal predecessors, (201), 35 states have call successors, (35), 19 states have call predecessors, (35), 18 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-11-19 08:18:28,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 269 transitions. [2022-11-19 08:18:28,638 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 269 transitions. Word has length 29 [2022-11-19 08:18:28,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:18:28,639 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 269 transitions. [2022-11-19 08:18:28,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:18:28,639 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 269 transitions. [2022-11-19 08:18:28,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-19 08:18:28,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:18:28,641 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:18:28,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:18:28,641 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:18:28,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:18:28,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1530914773, now seen corresponding path program 1 times [2022-11-19 08:18:28,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:18:28,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764567117] [2022-11-19 08:18:28,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:18:28,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:18:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:18:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:18:28,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:18:28,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764567117] [2022-11-19 08:18:28,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764567117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:18:28,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:18:28,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:18:28,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98704463] [2022-11-19 08:18:28,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:18:28,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:18:28,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:18:28,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:18:28,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:28,895 INFO L87 Difference]: Start difference. First operand 193 states and 269 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:18:30,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:30,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:18:30,851 INFO L93 Difference]: Finished difference Result 195 states and 270 transitions. [2022-11-19 08:18:30,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:18:30,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-11-19 08:18:30,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:18:30,854 INFO L225 Difference]: With dead ends: 195 [2022-11-19 08:18:30,854 INFO L226 Difference]: Without dead ends: 192 [2022-11-19 08:18:30,855 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 [2022-11-19 08:18:30,855 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 120 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:18:30,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 103 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-19 08:18:30,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-19 08:18:30,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-11-19 08:18:30,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 139 states have (on average 1.4388489208633093) internal successors, (200), 141 states have internal predecessors, (200), 34 states have call successors, (34), 19 states have call predecessors, (34), 18 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-11-19 08:18:30,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 267 transitions. [2022-11-19 08:18:30,876 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 267 transitions. Word has length 37 [2022-11-19 08:18:30,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:18:30,876 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 267 transitions. [2022-11-19 08:18:30,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:18:30,877 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 267 transitions. [2022-11-19 08:18:30,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-19 08:18:30,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:18:30,879 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:18:30,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:18:30,880 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:18:30,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:18:30,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1967901096, now seen corresponding path program 1 times [2022-11-19 08:18:30,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:18:30,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349752104] [2022-11-19 08:18:30,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:18:30,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:18:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:18:31,106 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:18:31,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:18:31,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349752104] [2022-11-19 08:18:31,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349752104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:18:31,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:18:31,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:18:31,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400849695] [2022-11-19 08:18:31,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:18:31,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:18:31,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:18:31,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:18:31,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:31,109 INFO L87 Difference]: Start difference. First operand 192 states and 267 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:18:32,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:32,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:18:32,780 INFO L93 Difference]: Finished difference Result 192 states and 267 transitions. [2022-11-19 08:18:32,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:18:32,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2022-11-19 08:18:32,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:18:32,782 INFO L225 Difference]: With dead ends: 192 [2022-11-19 08:18:32,782 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:18:32,782 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 [2022-11-19 08:18:32,783 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 115 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:18:32,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 101 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-19 08:18:32,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:18:32,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:18:32,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:18:32,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:18:32,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2022-11-19 08:18:32,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:18:32,786 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:18:32,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:18:32,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:18:32,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:18:32,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:18:32,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:18:32,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:18:33,259 INFO L899 garLoopResultBuilder]: For program point L6653-1(lines 6653 6654) no Hoare annotation was computed. [2022-11-19 08:18:33,259 INFO L902 garLoopResultBuilder]: At program point L6653(lines 6653 6654) the Hoare annotation is: true [2022-11-19 08:18:33,259 INFO L899 garLoopResultBuilder]: For program point get_dma_opsEXIT(lines 6650 6661) no Hoare annotation was computed. [2022-11-19 08:18:33,259 INFO L902 garLoopResultBuilder]: At program point get_dma_opsENTRY(lines 6650 6661) the Hoare annotation is: true [2022-11-19 08:18:33,259 INFO L902 garLoopResultBuilder]: At program point flexcop_device_kfreeENTRY(lines 8049 8051) the Hoare annotation is: true [2022-11-19 08:18:33,260 INFO L899 garLoopResultBuilder]: For program point flexcop_device_kfreeEXIT(lines 8049 8051) no Hoare annotation was computed. [2022-11-19 08:18:33,260 INFO L902 garLoopResultBuilder]: At program point usb_set_intfdataENTRY(lines 6608 6614) the Hoare annotation is: true [2022-11-19 08:18:33,260 INFO L899 garLoopResultBuilder]: For program point usb_set_intfdataEXIT(lines 6608 6614) no Hoare annotation was computed. [2022-11-19 08:18:33,260 INFO L902 garLoopResultBuilder]: At program point flexcop_device_exitENTRY(lines 8042 8044) the Hoare annotation is: true [2022-11-19 08:18:33,260 INFO L899 garLoopResultBuilder]: For program point flexcop_device_exitEXIT(lines 8042 8044) no Hoare annotation was computed. [2022-11-19 08:18:33,260 INFO L899 garLoopResultBuilder]: For program point usb_submit_urbEXIT(lines 8107 8109) no Hoare annotation was computed. [2022-11-19 08:18:33,260 INFO L902 garLoopResultBuilder]: At program point usb_submit_urbENTRY(lines 8107 8109) the Hoare annotation is: true [2022-11-19 08:18:33,260 INFO L899 garLoopResultBuilder]: For program point L6555-1(lines 6555 6556) no Hoare annotation was computed. [2022-11-19 08:18:33,260 INFO L902 garLoopResultBuilder]: At program point L6555(lines 6555 6556) the Hoare annotation is: true [2022-11-19 08:18:33,260 INFO L902 garLoopResultBuilder]: At program point L6741-1(line 6741) the Hoare annotation is: true [2022-11-19 08:18:33,261 INFO L902 garLoopResultBuilder]: At program point L6741(line 6741) the Hoare annotation is: true [2022-11-19 08:18:33,261 INFO L902 garLoopResultBuilder]: At program point L6560(lines 6557 6562) the Hoare annotation is: true [2022-11-19 08:18:33,261 INFO L902 garLoopResultBuilder]: At program point L7233(lines 7219 7246) the Hoare annotation is: true [2022-11-19 08:18:33,261 INFO L899 garLoopResultBuilder]: For program point flexcop_usb_transfer_exitEXIT(lines 7217 7247) no Hoare annotation was computed. [2022-11-19 08:18:33,261 INFO L902 garLoopResultBuilder]: At program point L6742-2(lines 6742 6746) the Hoare annotation is: true [2022-11-19 08:18:33,261 INFO L902 garLoopResultBuilder]: At program point L6747(line 6747) the Hoare annotation is: true [2022-11-19 08:18:33,261 INFO L902 garLoopResultBuilder]: At program point L6557(lines 6557 6563) the Hoare annotation is: true [2022-11-19 08:18:33,261 INFO L902 garLoopResultBuilder]: At program point flexcop_usb_transfer_exitENTRY(lines 7217 7247) the Hoare annotation is: true [2022-11-19 08:18:33,261 INFO L899 garLoopResultBuilder]: For program point L6736-1(line 6736) no Hoare annotation was computed. [2022-11-19 08:18:33,261 INFO L902 garLoopResultBuilder]: At program point L6736(line 6736) the Hoare annotation is: true [2022-11-19 08:18:33,262 INFO L899 garLoopResultBuilder]: For program point L7240-2(lines 7217 7247) no Hoare annotation was computed. [2022-11-19 08:18:33,262 INFO L899 garLoopResultBuilder]: For program point L7240(lines 7240 7244) no Hoare annotation was computed. [2022-11-19 08:18:33,262 INFO L902 garLoopResultBuilder]: At program point __create_pipeENTRY(lines 6634 6639) the Hoare annotation is: true [2022-11-19 08:18:33,262 INFO L899 garLoopResultBuilder]: For program point __create_pipeEXIT(lines 6634 6639) no Hoare annotation was computed. [2022-11-19 08:18:33,262 INFO L902 garLoopResultBuilder]: At program point ldv_mallocENTRY(lines 8030 8034) the Hoare annotation is: true [2022-11-19 08:18:33,262 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 8030 8034) no Hoare annotation was computed. [2022-11-19 08:18:33,262 INFO L902 garLoopResultBuilder]: At program point ldv_errorENTRY(lines 7668 7673) the Hoare annotation is: true [2022-11-19 08:18:33,262 INFO L899 garLoopResultBuilder]: For program point ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7671) no Hoare annotation was computed. [2022-11-19 08:18:33,262 INFO L899 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 7668 7673) no Hoare annotation was computed. [2022-11-19 08:18:33,262 INFO L902 garLoopResultBuilder]: At program point flexcop_usb_exitENTRY(lines 7382 7388) the Hoare annotation is: true [2022-11-19 08:18:33,263 INFO L899 garLoopResultBuilder]: For program point flexcop_usb_exitEXIT(lines 7382 7388) no Hoare annotation was computed. [2022-11-19 08:18:33,263 INFO L899 garLoopResultBuilder]: For program point L7385-1(line 7385) no Hoare annotation was computed. [2022-11-19 08:18:33,263 INFO L902 garLoopResultBuilder]: At program point L7385(line 7385) the Hoare annotation is: true [2022-11-19 08:18:33,263 INFO L899 garLoopResultBuilder]: For program point L7270(lines 7270 7273) no Hoare annotation was computed. [2022-11-19 08:18:33,263 INFO L899 garLoopResultBuilder]: For program point L7369(line 7369) no Hoare annotation was computed. [2022-11-19 08:18:33,263 INFO L895 garLoopResultBuilder]: At program point L7437(lines 7395 7443) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,263 INFO L899 garLoopResultBuilder]: For program point L7305-1(line 7305) no Hoare annotation was computed. [2022-11-19 08:18:33,263 INFO L895 garLoopResultBuilder]: At program point L7305(line 7305) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,264 INFO L895 garLoopResultBuilder]: At program point L7439(lines 7395 7443) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,264 INFO L899 garLoopResultBuilder]: For program point L7373(line 7373) no Hoare annotation was computed. [2022-11-19 08:18:33,264 INFO L895 garLoopResultBuilder]: At program point L7342(lines 7259 7356) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,264 INFO L899 garLoopResultBuilder]: For program point L7441(line 7441) no Hoare annotation was computed. [2022-11-19 08:18:33,264 INFO L895 garLoopResultBuilder]: At program point L8036-1(line 8036) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,264 INFO L895 garLoopResultBuilder]: At program point L8036(line 8036) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,264 INFO L895 garLoopResultBuilder]: At program point L7442(lines 7389 7444) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,264 INFO L895 garLoopResultBuilder]: At program point L7377(lines 7360 7380) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,264 INFO L899 garLoopResultBuilder]: For program point L7543(line 7543) no Hoare annotation was computed. [2022-11-19 08:18:33,265 INFO L895 garLoopResultBuilder]: At program point L7378(line 7378) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,265 INFO L899 garLoopResultBuilder]: For program point L7378-1(line 7378) no Hoare annotation was computed. [2022-11-19 08:18:33,265 INFO L899 garLoopResultBuilder]: For program point L7544(lines 7544 7575) no Hoare annotation was computed. [2022-11-19 08:18:33,265 INFO L895 garLoopResultBuilder]: At program point L7379(lines 7358 7381) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,265 INFO L899 garLoopResultBuilder]: For program point L7280(lines 7280 7284) no Hoare annotation was computed. [2022-11-19 08:18:33,265 INFO L899 garLoopResultBuilder]: For program point L8007(lines 8007 8010) no Hoare annotation was computed. [2022-11-19 08:18:33,265 INFO L899 garLoopResultBuilder]: For program point L7513(line 7513) no Hoare annotation was computed. [2022-11-19 08:18:33,265 INFO L899 garLoopResultBuilder]: For program point L8009-1(lines 8006 8020) no Hoare annotation was computed. [2022-11-19 08:18:33,265 INFO L895 garLoopResultBuilder]: At program point L8009(line 8009) the Hoare annotation is: false [2022-11-19 08:18:33,266 INFO L899 garLoopResultBuilder]: For program point L7514(lines 7514 7541) no Hoare annotation was computed. [2022-11-19 08:18:33,266 INFO L899 garLoopResultBuilder]: For program point L7547(line 7547) no Hoare annotation was computed. [2022-11-19 08:18:33,266 INFO L895 garLoopResultBuilder]: At program point L7580(lines 7505 7585) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,266 INFO L895 garLoopResultBuilder]: At program point L7548(lines 7548 7553) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,266 INFO L899 garLoopResultBuilder]: For program point L7451-1(line 7451) no Hoare annotation was computed. [2022-11-19 08:18:33,266 INFO L895 garLoopResultBuilder]: At program point L7451(line 7451) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,266 INFO L899 garLoopResultBuilder]: For program point L7517(line 7517) no Hoare annotation was computed. [2022-11-19 08:18:33,266 INFO L895 garLoopResultBuilder]: At program point L7286(lines 7259 7356) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,267 INFO L899 garLoopResultBuilder]: For program point L8013-1(lines 8006 8020) no Hoare annotation was computed. [2022-11-19 08:18:33,267 INFO L895 garLoopResultBuilder]: At program point L8013(line 8013) the Hoare annotation is: false [2022-11-19 08:18:33,267 INFO L895 garLoopResultBuilder]: At program point L7518(lines 7518 7526) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,267 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 08:18:33,267 INFO L899 garLoopResultBuilder]: For program point L7452-1(line 7452) no Hoare annotation was computed. [2022-11-19 08:18:33,267 INFO L895 garLoopResultBuilder]: At program point L7452(line 7452) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,267 INFO L899 garLoopResultBuilder]: For program point L7354(line 7354) no Hoare annotation was computed. [2022-11-19 08:18:33,267 INFO L895 garLoopResultBuilder]: At program point L7420(lines 7420 7423) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,268 INFO L899 garLoopResultBuilder]: For program point L7453-1(line 7453) no Hoare annotation was computed. [2022-11-19 08:18:33,268 INFO L895 garLoopResultBuilder]: At program point L7453(line 7453) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,268 INFO L895 garLoopResultBuilder]: At program point L7454(line 7454) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,268 INFO L895 garLoopResultBuilder]: At program point L7355(lines 7248 7357) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,268 INFO L895 garLoopResultBuilder]: At program point L7454-1(line 7454) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,268 INFO L895 garLoopResultBuilder]: At program point L8083-1(line 8083) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,268 INFO L895 garLoopResultBuilder]: At program point L8083(line 8083) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,269 INFO L902 garLoopResultBuilder]: At program point L8017-1(lines 8004 8021) the Hoare annotation is: true [2022-11-19 08:18:33,269 INFO L895 garLoopResultBuilder]: At program point L8017(line 8017) the Hoare annotation is: false [2022-11-19 08:18:33,269 INFO L899 garLoopResultBuilder]: For program point L7555(line 7555) no Hoare annotation was computed. [2022-11-19 08:18:33,269 INFO L895 garLoopResultBuilder]: At program point L7324(lines 7259 7356) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,269 INFO L895 garLoopResultBuilder]: At program point L7556(lines 7556 7568) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,269 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:18:33,269 INFO L899 garLoopResultBuilder]: For program point L7425(lines 7425 7428) no Hoare annotation was computed. [2022-11-19 08:18:33,269 INFO L895 garLoopResultBuilder]: At program point L8053-1(line 8053) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,270 INFO L895 garLoopResultBuilder]: At program point L8053(line 8053) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,270 INFO L899 garLoopResultBuilder]: For program point L7558-2(lines 7556 7567) no Hoare annotation was computed. [2022-11-19 08:18:33,270 INFO L899 garLoopResultBuilder]: For program point L7528(line 7528) no Hoare annotation was computed. [2022-11-19 08:18:33,270 INFO L899 garLoopResultBuilder]: For program point L7363(line 7363) no Hoare annotation was computed. [2022-11-19 08:18:33,270 INFO L895 garLoopResultBuilder]: At program point L6703-1(line 6703) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,270 INFO L895 garLoopResultBuilder]: At program point L6703(line 6703) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,270 INFO L899 garLoopResultBuilder]: For program point L7430(lines 7430 7433) no Hoare annotation was computed. [2022-11-19 08:18:33,270 INFO L899 garLoopResultBuilder]: For program point L7529(lines 7529 7534) no Hoare annotation was computed. [2022-11-19 08:18:33,271 INFO L899 garLoopResultBuilder]: For program point L7331-1(line 7331) no Hoare annotation was computed. [2022-11-19 08:18:33,271 INFO L895 garLoopResultBuilder]: At program point L7331(line 7331) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,271 INFO L895 garLoopResultBuilder]: At program point L7431(lines 7395 7443) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,271 INFO L899 garLoopResultBuilder]: For program point L7332(lines 7332 7336) no Hoare annotation was computed. [2022-11-19 08:18:33,271 INFO L895 garLoopResultBuilder]: At program point L-1-3(line -1) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,271 INFO L895 garLoopResultBuilder]: At program point L7564(lines 7505 7585) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,271 INFO L899 garLoopResultBuilder]: For program point L7366(line 7366) no Hoare annotation was computed. [2022-11-19 08:18:33,272 INFO L895 garLoopResultBuilder]: At program point L7334(lines 7259 7356) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,272 INFO L895 garLoopResultBuilder]: At program point L7401(lines 7401 7405) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2022-11-19 08:18:33,272 INFO L902 garLoopResultBuilder]: At program point ldv__builtin_expectENTRY(lines 7675 7680) the Hoare annotation is: true [2022-11-19 08:18:33,272 INFO L899 garLoopResultBuilder]: For program point ldv__builtin_expectEXIT(lines 7675 7680) no Hoare annotation was computed. [2022-11-19 08:18:33,275 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:18:33,277 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:18:33,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:18:33 BoogieIcfgContainer [2022-11-19 08:18:33,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:18:33,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:18:33,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:18:33,305 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:18:33,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:18:15" (3/4) ... [2022-11-19 08:18:33,309 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:18:33,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dma_ops [2022-11-19 08:18:33,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flexcop_device_kfree [2022-11-19 08:18:33,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-11-19 08:18:33,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2022-11-19 08:18:33,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flexcop_usb_exit [2022-11-19 08:18:33,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_set_intfdata [2022-11-19 08:18:33,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flexcop_device_exit [2022-11-19 08:18:33,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_submit_urb [2022-11-19 08:18:33,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flexcop_usb_transfer_exit [2022-11-19 08:18:33,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __create_pipe [2022-11-19 08:18:33,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2022-11-19 08:18:33,334 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 198 nodes and edges [2022-11-19 08:18:33,336 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2022-11-19 08:18:33,337 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-19 08:18:33,338 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 08:18:33,340 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 08:18:33,341 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:18:33,342 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:18:33,455 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:18:33,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:18:33,456 INFO L158 Benchmark]: Toolchain (without parser) took 23550.74ms. Allocated memory was 115.3MB in the beginning and 402.7MB in the end (delta: 287.3MB). Free memory was 86.5MB in the beginning and 199.0MB in the end (delta: -112.5MB). Peak memory consumption was 174.6MB. Max. memory is 16.1GB. [2022-11-19 08:18:33,456 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:18:33,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2393.37ms. Allocated memory was 115.3MB in the beginning and 163.6MB in the end (delta: 48.2MB). Free memory was 86.2MB in the beginning and 101.5MB in the end (delta: -15.4MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. [2022-11-19 08:18:33,457 INFO L158 Benchmark]: Boogie Procedure Inliner took 217.37ms. Allocated memory is still 163.6MB. Free memory was 101.5MB in the beginning and 93.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 08:18:33,457 INFO L158 Benchmark]: Boogie Preprocessor took 99.76ms. Allocated memory is still 163.6MB. Free memory was 93.1MB in the beginning and 85.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 08:18:33,457 INFO L158 Benchmark]: RCFGBuilder took 3259.80ms. Allocated memory was 163.6MB in the beginning and 308.3MB in the end (delta: 144.7MB). Free memory was 85.0MB in the beginning and 179.4MB in the end (delta: -94.4MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2022-11-19 08:18:33,458 INFO L158 Benchmark]: TraceAbstraction took 17418.87ms. Allocated memory was 308.3MB in the beginning and 402.7MB in the end (delta: 94.4MB). Free memory was 178.3MB in the beginning and 214.2MB in the end (delta: -35.8MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2022-11-19 08:18:33,458 INFO L158 Benchmark]: Witness Printer took 150.36ms. Allocated memory is still 402.7MB. Free memory was 214.2MB in the beginning and 199.0MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 08:18:33,460 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2393.37ms. Allocated memory was 115.3MB in the beginning and 163.6MB in the end (delta: 48.2MB). Free memory was 86.2MB in the beginning and 101.5MB in the end (delta: -15.4MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 217.37ms. Allocated memory is still 163.6MB. Free memory was 101.5MB in the beginning and 93.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.76ms. Allocated memory is still 163.6MB. Free memory was 93.1MB in the beginning and 85.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3259.80ms. Allocated memory was 163.6MB in the beginning and 308.3MB in the end (delta: 144.7MB). Free memory was 85.0MB in the beginning and 179.4MB in the end (delta: -94.4MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. * TraceAbstraction took 17418.87ms. Allocated memory was 308.3MB in the beginning and 402.7MB in the end (delta: 94.4MB). Free memory was 178.3MB in the beginning and 214.2MB in the end (delta: -35.8MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Witness Printer took 150.36ms. Allocated memory is still 402.7MB. Free memory was 214.2MB in the beginning and 199.0MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7671]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.3s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 610 SdHoareTripleChecker+Valid, 14.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 610 mSDsluCounter, 1211 SdHoareTripleChecker+Invalid, 14.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 413 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 484 IncrementalHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 798 mSDtfsCounter, 484 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=228occurred in iteration=2, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 248 PreInvPairs, 291 NumberOfFragments, 377 HoareAnnotationTreeSize, 248 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 62 FomulaSimplificationsInter, 530 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 359 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 20/20 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6608]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7259]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7548]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7556]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7395]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7259]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7395]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 8036]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7360]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 6557]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6703]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7358]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8053]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7505]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7259]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 8083]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 6747]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8004]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7454]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7518]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7401]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7420]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7505]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7395]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 6557]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7248]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7259]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7219]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 7389]: Loop Invariant Derived loop invariant: (1 == ldv_mutex_mutex_of_device && ldv_mutex_lock == 1) && ldv_mutex_cred_guard_mutex_of_signal_struct == 1 - InvariantResult [Line: 6741]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 08:18:33,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b2dac-d6ed-40fb-b2b2-5178a54b6988/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE