./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs --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 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:46:12,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:46:12,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:46:12,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:46:12,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:46:12,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:46:12,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:46:12,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:46:12,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:46:12,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:46:12,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:46:12,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:46:12,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:46:12,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:46:12,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:46:12,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:46:12,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:46:12,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:46:12,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:46:12,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:46:12,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:46:12,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:46:12,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:46:12,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:46:12,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:46:12,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:46:12,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:46:12,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:46:12,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:46:12,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:46:12,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:46:12,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:46:12,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:46:12,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:46:12,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:46:12,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:46:12,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:46:12,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:46:12,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:46:12,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:46:12,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:46:12,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:46:12,942 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:46:12,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:46:12,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:46:12,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:46:12,946 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:46:12,946 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:46:12,946 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:46:12,947 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:46:12,954 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:46:12,954 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:46:12,956 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:46:12,956 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:46:12,956 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:46:12,956 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:46:12,957 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:46:12,957 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:46:12,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:46:12,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:46:12,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:46:12,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:46:12,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:46:12,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:46:12,959 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:46:12,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:46:12,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:46:12,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:46:12,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:46:12,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:46:12,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:46:12,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:46:12,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:46:12,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:46:12,963 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:46:12,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:46:12,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:46:12,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:46:12,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:46:12,964 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a [2021-11-19 15:46:13,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:46:13,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:46:13,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:46:13,320 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:46:13,321 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:46:13,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2021-11-19 15:46:13,412 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/data/7d8c6c635/f56f203665d0422391935666bb7d9bf6/FLAG5778fb664 [2021-11-19 15:46:14,351 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:46:14,352 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2021-11-19 15:46:14,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/data/7d8c6c635/f56f203665d0422391935666bb7d9bf6/FLAG5778fb664 [2021-11-19 15:46:14,893 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/data/7d8c6c635/f56f203665d0422391935666bb7d9bf6 [2021-11-19 15:46:14,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:46:14,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:46:14,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:46:14,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:46:14,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:46:14,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:14" (1/1) ... [2021-11-19 15:46:14,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17436e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:14, skipping insertion in model container [2021-11-19 15:46:14,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:14" (1/1) ... [2021-11-19 15:46:14,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:46:14,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:46:15,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2021-11-19 15:46:15,946 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:46:16,003 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 15:46:16,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@140af5b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:16, skipping insertion in model container [2021-11-19 15:46:16,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:46:16,005 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:46:16,008 INFO L158 Benchmark]: Toolchain (without parser) took 1107.69ms. Allocated memory is still 107.0MB. Free memory was 65.5MB in the beginning and 56.7MB in the end (delta: 8.8MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-19 15:46:16,010 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 107.0MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:46:16,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1104.21ms. Allocated memory is still 107.0MB. Free memory was 65.3MB in the beginning and 56.7MB in the end (delta: 8.6MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-19 15:46:16,014 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 107.0MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1104.21ms. Allocated memory is still 107.0MB. Free memory was 65.3MB in the beginning and 56.7MB in the end (delta: 8.6MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3446]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs --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 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:46:18,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:46:18,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:46:18,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:46:18,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:46:18,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:46:18,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:46:18,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:46:18,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:46:18,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:46:18,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:46:18,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:46:18,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:46:18,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:46:18,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:46:18,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:46:18,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:46:18,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:46:18,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:46:18,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:46:18,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:46:18,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:46:18,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:46:18,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:46:18,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:46:18,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:46:18,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:46:18,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:46:18,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:46:18,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:46:18,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:46:18,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:46:18,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:46:18,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:46:18,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:46:18,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:46:18,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:46:18,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:46:18,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:46:18,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:46:18,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:46:18,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:46:18,738 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:46:18,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:46:18,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:46:18,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:46:18,742 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:46:18,743 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:46:18,743 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:46:18,743 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:46:18,743 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:46:18,744 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:46:18,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:46:18,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:46:18,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:46:18,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:46:18,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:46:18,748 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:46:18,748 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:46:18,748 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:46:18,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:46:18,749 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:46:18,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:46:18,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:46:18,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:46:18,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:46:18,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:46:18,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:46:18,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:46:18,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:46:18,751 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:46:18,751 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:46:18,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:46:18,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:46:18,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:46:18,752 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a [2021-11-19 15:46:19,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:46:19,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:46:19,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:46:19,238 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:46:19,239 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:46:19,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2021-11-19 15:46:19,324 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/data/ee1757a62/4212c15125f9458584e88d5c6b57761b/FLAG900b1e496 [2021-11-19 15:46:20,244 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:46:20,244 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2021-11-19 15:46:20,322 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/data/ee1757a62/4212c15125f9458584e88d5c6b57761b/FLAG900b1e496 [2021-11-19 15:46:20,787 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/data/ee1757a62/4212c15125f9458584e88d5c6b57761b [2021-11-19 15:46:20,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:46:20,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:46:20,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:46:20,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:46:20,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:46:20,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:20" (1/1) ... [2021-11-19 15:46:20,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@435c20cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:20, skipping insertion in model container [2021-11-19 15:46:20,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:20" (1/1) ... [2021-11-19 15:46:20,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:46:20,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:46:21,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2021-11-19 15:46:21,945 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:46:22,013 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:46:22,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:46:22,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2021-11-19 15:46:22,309 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:46:22,334 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:46:22,553 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2021-11-19 15:46:22,568 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:46:22,636 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:46:22,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:22 WrapperNode [2021-11-19 15:46:22,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:46:22,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:46:22,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:46:22,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:46:22,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:22" (1/1) ... [2021-11-19 15:46:22,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:22" (1/1) ... [2021-11-19 15:46:22,815 INFO L137 Inliner]: procedures = 87, calls = 256, calls flagged for inlining = 29, calls inlined = 26, statements flattened = 713 [2021-11-19 15:46:22,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:46:22,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:46:22,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:46:22,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:46:22,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:22" (1/1) ... [2021-11-19 15:46:22,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:22" (1/1) ... [2021-11-19 15:46:22,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:22" (1/1) ... [2021-11-19 15:46:22,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:22" (1/1) ... [2021-11-19 15:46:22,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:22" (1/1) ... [2021-11-19 15:46:22,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:22" (1/1) ... [2021-11-19 15:46:22,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:22" (1/1) ... [2021-11-19 15:46:22,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:46:23,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:46:23,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:46:23,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:46:23,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:22" (1/1) ... [2021-11-19 15:46:23,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:46:23,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:46:23,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:46:23,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:46:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_init [2021-11-19 15:46:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_init [2021-11-19 15:46:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:46:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-19 15:46:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-19 15:46:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:46:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:46:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:46:23,107 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-11-19 15:46:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-11-19 15:46:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_exit [2021-11-19 15:46:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_exit [2021-11-19 15:46:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:46:23,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 15:46:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 15:46:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-11-19 15:46:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-11-19 15:46:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:46:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-19 15:46:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-19 15:46:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 15:46:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 15:46:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:46:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 15:46:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-11-19 15:46:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-11-19 15:46:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:46:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 15:46:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-19 15:46:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-19 15:46:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:46:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 15:46:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 15:46:23,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 15:46:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:46:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:46:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 15:46:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 15:46:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 15:46:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2021-11-19 15:46:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2021-11-19 15:46:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-19 15:46:23,115 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-19 15:46:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2021-11-19 15:46:23,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2021-11-19 15:46:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:46:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:46:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:46:23,502 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:46:23,521 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:46:23,665 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2021-11-19 15:46:23,746 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 15:46:33,368 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-11-19 15:46:33,368 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-11-19 15:46:33,399 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:46:33,410 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:46:33,418 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-19 15:46:33,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:46:33 BoogieIcfgContainer [2021-11-19 15:46:33,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:46:33,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:46:33,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:46:33,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:46:33,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:46:20" (1/3) ... [2021-11-19 15:46:33,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b367687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:46:33, skipping insertion in model container [2021-11-19 15:46:33,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:22" (2/3) ... [2021-11-19 15:46:33,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b367687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:46:33, skipping insertion in model container [2021-11-19 15:46:33,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:46:33" (3/3) ... [2021-11-19 15:46:33,434 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2021-11-19 15:46:33,441 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:46:33,441 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 15:46:33,518 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:46:33,527 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 15:46:33,527 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 15:46:33,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 119 states have (on average 1.3277310924369747) internal successors, (158), 127 states have internal predecessors, (158), 29 states have call successors, (29), 14 states have call predecessors, (29), 13 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-19 15:46:33,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 15:46:33,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:33,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:33,566 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:46:33,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:33,578 INFO L85 PathProgramCache]: Analyzing trace with hash 567277314, now seen corresponding path program 1 times [2021-11-19 15:46:33,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:46:33,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643187809] [2021-11-19 15:46:33,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:33,599 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:46:33,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:46:33,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:46:33,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:46:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:34,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:46:34,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:34,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:46:34,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:46:34,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:46:34,407 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:46:34,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643187809] [2021-11-19 15:46:34,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643187809] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:46:34,409 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:46:34,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-19 15:46:34,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61976199] [2021-11-19 15:46:34,412 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:46:34,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:46:34,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:46:34,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:46:34,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:46:34,466 INFO L87 Difference]: Start difference. First operand has 163 states, 119 states have (on average 1.3277310924369747) internal successors, (158), 127 states have internal predecessors, (158), 29 states have call successors, (29), 14 states have call predecessors, (29), 13 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 15:46:34,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:46:34,643 INFO L93 Difference]: Finished difference Result 447 states and 604 transitions. [2021-11-19 15:46:34,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:46:34,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-11-19 15:46:34,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:46:34,667 INFO L225 Difference]: With dead ends: 447 [2021-11-19 15:46:34,668 INFO L226 Difference]: Without dead ends: 287 [2021-11-19 15:46:34,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:46:34,687 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 177 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:46:34,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 408 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:46:34,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-11-19 15:46:34,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283. [2021-11-19 15:46:34,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 210 states have (on average 1.2190476190476192) internal successors, (256), 214 states have internal predecessors, (256), 49 states have call successors, (49), 24 states have call predecessors, (49), 23 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2021-11-19 15:46:34,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 350 transitions. [2021-11-19 15:46:34,795 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 350 transitions. Word has length 17 [2021-11-19 15:46:34,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:46:34,796 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 350 transitions. [2021-11-19 15:46:34,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 15:46:34,797 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 350 transitions. [2021-11-19 15:46:34,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 15:46:34,798 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:34,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:34,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 15:46:35,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:46:35,012 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:46:35,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:35,019 INFO L85 PathProgramCache]: Analyzing trace with hash 405605840, now seen corresponding path program 1 times [2021-11-19 15:46:35,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:46:35,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511046269] [2021-11-19 15:46:35,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:35,036 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:46:35,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:46:35,037 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:46:35,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:46:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:35,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:46:35,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:35,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:46:35,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:46:35,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:46:35,591 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:46:35,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511046269] [2021-11-19 15:46:35,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511046269] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:46:35,592 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:46:35,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-19 15:46:35,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409882424] [2021-11-19 15:46:35,592 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:46:35,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:46:35,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:46:35,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:46:35,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:46:35,596 INFO L87 Difference]: Start difference. First operand 283 states and 350 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 15:46:35,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:46:35,699 INFO L93 Difference]: Finished difference Result 820 states and 1021 transitions. [2021-11-19 15:46:35,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:46:35,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2021-11-19 15:46:35,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:46:35,712 INFO L225 Difference]: With dead ends: 820 [2021-11-19 15:46:35,713 INFO L226 Difference]: Without dead ends: 542 [2021-11-19 15:46:35,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:46:35,719 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 167 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:46:35,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 417 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:46:35,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2021-11-19 15:46:35,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 535. [2021-11-19 15:46:35,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 398 states have (on average 1.2110552763819096) internal successors, (482), 401 states have internal predecessors, (482), 92 states have call successors, (92), 45 states have call predecessors, (92), 44 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2021-11-19 15:46:35,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 662 transitions. [2021-11-19 15:46:35,823 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 662 transitions. Word has length 18 [2021-11-19 15:46:35,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:46:35,823 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 662 transitions. [2021-11-19 15:46:35,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 15:46:35,824 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 662 transitions. [2021-11-19 15:46:35,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-19 15:46:35,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:35,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:35,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:46:36,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:46:36,041 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:46:36,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:36,043 INFO L85 PathProgramCache]: Analyzing trace with hash -447516912, now seen corresponding path program 1 times [2021-11-19 15:46:36,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:46:36,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666062879] [2021-11-19 15:46:36,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:36,047 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:46:36,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:46:36,049 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:46:36,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:46:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:36,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:46:36,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:36,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:46:36,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:46:36,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:46:36,936 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:46:36,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666062879] [2021-11-19 15:46:36,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666062879] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:46:36,936 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:46:36,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 15:46:36,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572117608] [2021-11-19 15:46:36,937 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:46:36,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:46:36,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:46:36,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:46:36,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:46:36,938 INFO L87 Difference]: Start difference. First operand 535 states and 662 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 15:46:37,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:46:37,082 INFO L93 Difference]: Finished difference Result 1062 states and 1315 transitions. [2021-11-19 15:46:37,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:46:37,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 51 [2021-11-19 15:46:37,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:46:37,090 INFO L225 Difference]: With dead ends: 1062 [2021-11-19 15:46:37,091 INFO L226 Difference]: Without dead ends: 535 [2021-11-19 15:46:37,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:46:37,098 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 2 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:46:37,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 913 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:46:37,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-11-19 15:46:37,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2021-11-19 15:46:37,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 398 states have (on average 1.2085427135678393) internal successors, (481), 401 states have internal predecessors, (481), 92 states have call successors, (92), 45 states have call predecessors, (92), 44 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2021-11-19 15:46:37,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 661 transitions. [2021-11-19 15:46:37,154 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 661 transitions. Word has length 51 [2021-11-19 15:46:37,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:46:37,154 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 661 transitions. [2021-11-19 15:46:37,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 15:46:37,155 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 661 transitions. [2021-11-19 15:46:37,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-19 15:46:37,160 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:37,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:37,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:46:37,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:46:37,383 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:46:37,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:37,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1798062542, now seen corresponding path program 1 times [2021-11-19 15:46:37,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:46:37,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180332237] [2021-11-19 15:46:37,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:37,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:46:37,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:46:37,387 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:46:37,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:46:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:37,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:46:37,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:37,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:46:37,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:46:38,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:46:38,112 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:46:38,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180332237] [2021-11-19 15:46:38,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180332237] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:46:38,113 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:46:38,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:46:38,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327982551] [2021-11-19 15:46:38,113 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:46:38,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:46:38,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:46:38,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:46:38,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:46:38,115 INFO L87 Difference]: Start difference. First operand 535 states and 661 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 15:46:38,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:46:38,251 INFO L93 Difference]: Finished difference Result 1129 states and 1427 transitions. [2021-11-19 15:46:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:46:38,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 51 [2021-11-19 15:46:38,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:46:38,259 INFO L225 Difference]: With dead ends: 1129 [2021-11-19 15:46:38,260 INFO L226 Difference]: Without dead ends: 606 [2021-11-19 15:46:38,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:46:38,265 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 66 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:46:38,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 403 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:46:38,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-11-19 15:46:38,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2021-11-19 15:46:38,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 469 states have (on average 1.2409381663113006) internal successors, (582), 472 states have internal predecessors, (582), 92 states have call successors, (92), 45 states have call predecessors, (92), 44 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2021-11-19 15:46:38,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 762 transitions. [2021-11-19 15:46:38,325 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 762 transitions. Word has length 51 [2021-11-19 15:46:38,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:46:38,326 INFO L470 AbstractCegarLoop]: Abstraction has 606 states and 762 transitions. [2021-11-19 15:46:38,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 15:46:38,327 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 762 transitions. [2021-11-19 15:46:38,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-19 15:46:38,336 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:38,337 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:38,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:46:38,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:46:38,554 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:46:38,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:38,555 INFO L85 PathProgramCache]: Analyzing trace with hash -375859530, now seen corresponding path program 1 times [2021-11-19 15:46:38,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:46:38,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644649182] [2021-11-19 15:46:38,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:38,556 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:46:38,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:46:38,557 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:46:38,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:46:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:39,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 15:46:39,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:39,763 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 15:46:39,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:46:40,631 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-19 15:46:40,631 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:46:40,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644649182] [2021-11-19 15:46:40,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644649182] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:46:40,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1147290827] [2021-11-19 15:46:40,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:40,632 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:46:40,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:46:40,642 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:46:40,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-19 15:46:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:41,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 15:46:41,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:42,234 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 15:46:42,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:46:42,967 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-19 15:46:42,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1147290827] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:46:42,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503659822] [2021-11-19 15:46:42,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:42,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:46:42,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:46:42,970 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:46:42,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 15:46:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:43,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 15:46:43,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:43,681 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 15:46:43,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:46:44,409 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-19 15:46:44,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503659822] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:46:44,410 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 15:46:44,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 9 [2021-11-19 15:46:44,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704812664] [2021-11-19 15:46:44,411 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 15:46:44,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 15:46:44,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:46:44,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 15:46:44,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-19 15:46:44,414 INFO L87 Difference]: Start difference. First operand 606 states and 762 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 15:46:46,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:46:47,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:46:49,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:46:49,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:46:49,969 INFO L93 Difference]: Finished difference Result 1442 states and 1862 transitions. [2021-11-19 15:46:49,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 15:46:49,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 86 [2021-11-19 15:46:49,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:46:49,979 INFO L225 Difference]: With dead ends: 1442 [2021-11-19 15:46:49,980 INFO L226 Difference]: Without dead ends: 849 [2021-11-19 15:46:49,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-19 15:46:49,983 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 38 mSDsluCounter, 1425 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:46:49,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 1635 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2021-11-19 15:46:49,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2021-11-19 15:46:50,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 654. [2021-11-19 15:46:50,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 505 states have (on average 1.2237623762376237) internal successors, (618), 508 states have internal predecessors, (618), 96 states have call successors, (96), 45 states have call predecessors, (96), 52 states have return successors, (116), 100 states have call predecessors, (116), 92 states have call successors, (116) [2021-11-19 15:46:50,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 830 transitions. [2021-11-19 15:46:50,035 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 830 transitions. Word has length 86 [2021-11-19 15:46:50,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:46:50,035 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 830 transitions. [2021-11-19 15:46:50,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 15:46:50,036 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 830 transitions. [2021-11-19 15:46:50,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-19 15:46:50,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:50,038 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:50,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:46:50,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-19 15:46:50,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-19 15:46:50,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:46:50,651 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:46:50,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:50,652 INFO L85 PathProgramCache]: Analyzing trace with hash 2111260245, now seen corresponding path program 1 times [2021-11-19 15:46:50,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:46:50,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114548318] [2021-11-19 15:46:50,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:50,653 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:46:50,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:46:50,654 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:46:50,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 15:46:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:51,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 15:46:51,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:51,711 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 15:46:51,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:46:52,357 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-19 15:46:52,358 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:46:52,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114548318] [2021-11-19 15:46:52,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114548318] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:46:52,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:46:52,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 10 [2021-11-19 15:46:52,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489103664] [2021-11-19 15:46:52,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:46:52,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:46:52,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:46:52,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:46:52,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:46:52,361 INFO L87 Difference]: Start difference. First operand 654 states and 830 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 15:46:54,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:46:56,856 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:46:56,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:46:56,944 INFO L93 Difference]: Finished difference Result 1729 states and 2265 transitions. [2021-11-19 15:46:56,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 15:46:56,945 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2021-11-19 15:46:56,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:46:56,954 INFO L225 Difference]: With dead ends: 1729 [2021-11-19 15:46:56,954 INFO L226 Difference]: Without dead ends: 1088 [2021-11-19 15:46:56,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-19 15:46:56,958 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 103 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:46:56,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 1977 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 73 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-11-19 15:46:56,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2021-11-19 15:46:57,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 670. [2021-11-19 15:46:57,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 521 states have (on average 1.2245681381957774) internal successors, (638), 520 states have internal predecessors, (638), 96 states have call successors, (96), 45 states have call predecessors, (96), 52 states have return successors, (116), 104 states have call predecessors, (116), 92 states have call successors, (116) [2021-11-19 15:46:57,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 850 transitions. [2021-11-19 15:46:57,020 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 850 transitions. Word has length 86 [2021-11-19 15:46:57,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:46:57,021 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 850 transitions. [2021-11-19 15:46:57,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 15:46:57,021 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 850 transitions. [2021-11-19 15:46:57,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-19 15:46:57,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:57,024 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:57,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 15:46:57,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:46:57,239 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:46:57,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:57,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2103500886, now seen corresponding path program 2 times [2021-11-19 15:46:57,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:46:57,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130876061] [2021-11-19 15:46:57,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 15:46:57,241 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:46:57,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:46:57,241 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:46:57,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 15:46:58,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 15:46:58,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 15:46:58,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:46:58,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:58,505 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 15:46:58,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:46:58,722 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 15:46:58,723 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:46:58,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130876061] [2021-11-19 15:46:58,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130876061] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:46:58,723 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:46:58,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 15:46:58,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814772739] [2021-11-19 15:46:58,724 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:46:58,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:46:58,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:46:58,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:46:58,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:46:58,725 INFO L87 Difference]: Start difference. First operand 670 states and 850 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 15:46:58,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:46:58,877 INFO L93 Difference]: Finished difference Result 1328 states and 1720 transitions. [2021-11-19 15:46:58,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:46:58,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 86 [2021-11-19 15:46:58,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:46:58,883 INFO L225 Difference]: With dead ends: 1328 [2021-11-19 15:46:58,883 INFO L226 Difference]: Without dead ends: 671 [2021-11-19 15:46:58,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:46:58,886 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 41 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:46:58,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 677 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:46:58,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2021-11-19 15:46:58,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 474. [2021-11-19 15:46:58,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 370 states have (on average 1.2162162162162162) internal successors, (450), 370 states have internal predecessors, (450), 65 states have call successors, (65), 33 states have call predecessors, (65), 38 states have return successors, (79), 70 states have call predecessors, (79), 61 states have call successors, (79) [2021-11-19 15:46:58,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 594 transitions. [2021-11-19 15:46:58,933 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 594 transitions. Word has length 86 [2021-11-19 15:46:58,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:46:58,934 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 594 transitions. [2021-11-19 15:46:58,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 15:46:58,934 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 594 transitions. [2021-11-19 15:46:58,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-19 15:46:58,936 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:58,936 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:58,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 15:46:59,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:46:59,151 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:46:59,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:59,151 INFO L85 PathProgramCache]: Analyzing trace with hash 2034337337, now seen corresponding path program 1 times [2021-11-19 15:46:59,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:46:59,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351539310] [2021-11-19 15:46:59,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:59,153 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:46:59,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:46:59,154 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:46:59,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 15:46:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:59,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 15:46:59,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:59,863 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 15:46:59,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:00,369 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 15:47:00,370 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:00,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351539310] [2021-11-19 15:47:00,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351539310] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:00,370 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:00,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-19 15:47:00,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154445988] [2021-11-19 15:47:00,370 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:00,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:47:00,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:00,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:47:00,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:47:00,372 INFO L87 Difference]: Start difference. First operand 474 states and 594 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-19 15:47:00,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:00,526 INFO L93 Difference]: Finished difference Result 1028 states and 1335 transitions. [2021-11-19 15:47:00,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 15:47:00,528 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) Word has length 83 [2021-11-19 15:47:00,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:00,535 INFO L225 Difference]: With dead ends: 1028 [2021-11-19 15:47:00,535 INFO L226 Difference]: Without dead ends: 686 [2021-11-19 15:47:00,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:47:00,538 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 43 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:00,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 1402 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:47:00,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-11-19 15:47:00,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 489. [2021-11-19 15:47:00,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 382 states have (on average 1.2094240837696335) internal successors, (462), 379 states have internal predecessors, (462), 65 states have call successors, (65), 33 states have call predecessors, (65), 41 states have return successors, (84), 76 states have call predecessors, (84), 61 states have call successors, (84) [2021-11-19 15:47:00,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 611 transitions. [2021-11-19 15:47:00,583 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 611 transitions. Word has length 83 [2021-11-19 15:47:00,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:00,583 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 611 transitions. [2021-11-19 15:47:00,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-19 15:47:00,584 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 611 transitions. [2021-11-19 15:47:00,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-19 15:47:00,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:00,585 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:00,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:00,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:00,805 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:00,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:00,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2045653464, now seen corresponding path program 1 times [2021-11-19 15:47:00,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:00,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987028227] [2021-11-19 15:47:00,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:00,806 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:00,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:00,807 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:00,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 15:47:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:01,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 15:47:01,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:01,594 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 15:47:01,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:01,894 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 15:47:01,894 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:01,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987028227] [2021-11-19 15:47:01,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987028227] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:01,895 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:01,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-19 15:47:01,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002882063] [2021-11-19 15:47:01,895 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:01,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 15:47:01,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:01,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 15:47:01,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-19 15:47:01,898 INFO L87 Difference]: Start difference. First operand 489 states and 611 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-19 15:47:02,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:02,288 INFO L93 Difference]: Finished difference Result 1100 states and 1407 transitions. [2021-11-19 15:47:02,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 15:47:02,289 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) Word has length 83 [2021-11-19 15:47:02,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:02,293 INFO L225 Difference]: With dead ends: 1100 [2021-11-19 15:47:02,293 INFO L226 Difference]: Without dead ends: 624 [2021-11-19 15:47:02,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-19 15:47:02,297 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 145 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:02,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 1747 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:47:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2021-11-19 15:47:02,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 487. [2021-11-19 15:47:02,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 380 states have (on average 1.1973684210526316) internal successors, (455), 378 states have internal predecessors, (455), 65 states have call successors, (65), 33 states have call predecessors, (65), 41 states have return successors, (84), 75 states have call predecessors, (84), 61 states have call successors, (84) [2021-11-19 15:47:02,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 604 transitions. [2021-11-19 15:47:02,342 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 604 transitions. Word has length 83 [2021-11-19 15:47:02,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:02,343 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 604 transitions. [2021-11-19 15:47:02,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-19 15:47:02,344 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 604 transitions. [2021-11-19 15:47:02,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-19 15:47:02,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:02,345 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:02,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:02,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:02,563 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:02,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:02,564 INFO L85 PathProgramCache]: Analyzing trace with hash -18136427, now seen corresponding path program 1 times [2021-11-19 15:47:02,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:02,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330066390] [2021-11-19 15:47:02,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:02,564 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:02,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:02,565 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:02,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 15:47:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:02,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:47:02,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:03,402 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 15:47:03,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:03,806 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 15:47:03,806 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:03,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330066390] [2021-11-19 15:47:03,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330066390] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:47:03,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:47:03,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2021-11-19 15:47:03,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413220310] [2021-11-19 15:47:03,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:03,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:47:03,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:03,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:47:03,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:47:03,811 INFO L87 Difference]: Start difference. First operand 487 states and 604 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-19 15:47:04,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:04,708 INFO L93 Difference]: Finished difference Result 1119 states and 1396 transitions. [2021-11-19 15:47:04,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:47:04,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 86 [2021-11-19 15:47:04,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:04,717 INFO L225 Difference]: With dead ends: 1119 [2021-11-19 15:47:04,717 INFO L226 Difference]: Without dead ends: 1116 [2021-11-19 15:47:04,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:47:04,719 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 268 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:04,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 626 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 15:47:04,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-11-19 15:47:04,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1059. [2021-11-19 15:47:04,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 830 states have (on average 1.2084337349397591) internal successors, (1003), 820 states have internal predecessors, (1003), 137 states have call successors, (137), 71 states have call predecessors, (137), 91 states have return successors, (194), 167 states have call predecessors, (194), 133 states have call successors, (194) [2021-11-19 15:47:04,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1334 transitions. [2021-11-19 15:47:04,817 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1334 transitions. Word has length 86 [2021-11-19 15:47:04,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:04,818 INFO L470 AbstractCegarLoop]: Abstraction has 1059 states and 1334 transitions. [2021-11-19 15:47:04,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-19 15:47:04,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1334 transitions. [2021-11-19 15:47:04,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-19 15:47:04,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:04,820 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:04,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:05,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:05,039 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:05,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:05,039 INFO L85 PathProgramCache]: Analyzing trace with hash -604314367, now seen corresponding path program 1 times [2021-11-19 15:47:05,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:05,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180680549] [2021-11-19 15:47:05,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:05,040 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:05,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:05,041 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:05,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 15:47:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:05,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:47:05,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:05,668 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 15:47:05,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:05,935 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 15:47:05,935 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:05,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180680549] [2021-11-19 15:47:05,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180680549] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:05,935 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:05,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 15:47:05,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128383287] [2021-11-19 15:47:05,936 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:05,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 15:47:05,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:05,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 15:47:05,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 15:47:05,938 INFO L87 Difference]: Start difference. First operand 1059 states and 1334 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 15:47:06,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:06,912 INFO L93 Difference]: Finished difference Result 2062 states and 2592 transitions. [2021-11-19 15:47:06,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 15:47:06,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 96 [2021-11-19 15:47:06,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:06,920 INFO L225 Difference]: With dead ends: 2062 [2021-11-19 15:47:06,920 INFO L226 Difference]: Without dead ends: 983 [2021-11-19 15:47:06,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-19 15:47:06,924 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 142 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:06,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 878 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 15:47:06,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2021-11-19 15:47:06,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 864. [2021-11-19 15:47:06,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 673 states have (on average 1.1916790490341753) internal successors, (802), 669 states have internal predecessors, (802), 116 states have call successors, (116), 55 states have call predecessors, (116), 74 states have return successors, (164), 139 states have call predecessors, (164), 112 states have call successors, (164) [2021-11-19 15:47:07,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1082 transitions. [2021-11-19 15:47:07,001 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1082 transitions. Word has length 96 [2021-11-19 15:47:07,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:07,019 INFO L470 AbstractCegarLoop]: Abstraction has 864 states and 1082 transitions. [2021-11-19 15:47:07,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-19 15:47:07,019 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1082 transitions. [2021-11-19 15:47:07,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-19 15:47:07,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:07,024 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:07,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:07,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:07,239 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:07,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:07,239 INFO L85 PathProgramCache]: Analyzing trace with hash -841808268, now seen corresponding path program 1 times [2021-11-19 15:47:07,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:07,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321056633] [2021-11-19 15:47:07,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:07,240 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:07,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:07,241 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:07,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 15:47:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:07,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 15:47:07,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:07,974 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-19 15:47:07,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-19 15:47:08,400 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:08,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321056633] [2021-11-19 15:47:08,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321056633] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:08,400 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:08,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-19 15:47:08,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894667703] [2021-11-19 15:47:08,400 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:08,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:47:08,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:08,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:47:08,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:47:08,402 INFO L87 Difference]: Start difference. First operand 864 states and 1082 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-19 15:47:08,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:08,544 INFO L93 Difference]: Finished difference Result 1539 states and 1979 transitions. [2021-11-19 15:47:08,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 15:47:08,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2021-11-19 15:47:08,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:08,553 INFO L225 Difference]: With dead ends: 1539 [2021-11-19 15:47:08,554 INFO L226 Difference]: Without dead ends: 1125 [2021-11-19 15:47:08,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:47:08,556 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 75 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:08,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 1420 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:47:08,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2021-11-19 15:47:08,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 872. [2021-11-19 15:47:08,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 681 states have (on average 1.1894273127753303) internal successors, (810), 673 states have internal predecessors, (810), 116 states have call successors, (116), 55 states have call predecessors, (116), 74 states have return successors, (164), 143 states have call predecessors, (164), 112 states have call successors, (164) [2021-11-19 15:47:08,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1090 transitions. [2021-11-19 15:47:08,653 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1090 transitions. Word has length 105 [2021-11-19 15:47:08,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:08,654 INFO L470 AbstractCegarLoop]: Abstraction has 872 states and 1090 transitions. [2021-11-19 15:47:08,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-19 15:47:08,654 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1090 transitions. [2021-11-19 15:47:08,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-19 15:47:08,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:08,656 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:08,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:08,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:08,875 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:08,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:08,876 INFO L85 PathProgramCache]: Analyzing trace with hash 790995731, now seen corresponding path program 1 times [2021-11-19 15:47:08,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:08,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773604046] [2021-11-19 15:47:08,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:08,877 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:08,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:08,879 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:08,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 15:47:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:09,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 15:47:09,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-19 15:47:09,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:09,967 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-19 15:47:09,967 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:09,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773604046] [2021-11-19 15:47:09,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773604046] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:09,968 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:09,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-19 15:47:09,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408707138] [2021-11-19 15:47:09,968 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:09,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 15:47:09,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:09,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 15:47:09,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-19 15:47:09,970 INFO L87 Difference]: Start difference. First operand 872 states and 1090 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-19 15:47:10,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:10,369 INFO L93 Difference]: Finished difference Result 1947 states and 2489 transitions. [2021-11-19 15:47:10,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 15:47:10,370 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2021-11-19 15:47:10,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:10,378 INFO L225 Difference]: With dead ends: 1947 [2021-11-19 15:47:10,379 INFO L226 Difference]: Without dead ends: 1121 [2021-11-19 15:47:10,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-19 15:47:10,382 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 145 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 2043 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:10,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 2043 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:47:10,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2021-11-19 15:47:10,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 872. [2021-11-19 15:47:10,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 681 states have (on average 1.183553597650514) internal successors, (806), 675 states have internal predecessors, (806), 116 states have call successors, (116), 55 states have call predecessors, (116), 74 states have return successors, (164), 141 states have call predecessors, (164), 112 states have call successors, (164) [2021-11-19 15:47:10,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1086 transitions. [2021-11-19 15:47:10,474 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1086 transitions. Word has length 105 [2021-11-19 15:47:10,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:10,475 INFO L470 AbstractCegarLoop]: Abstraction has 872 states and 1086 transitions. [2021-11-19 15:47:10,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-19 15:47:10,475 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1086 transitions. [2021-11-19 15:47:10,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-19 15:47:10,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:10,477 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:10,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:10,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:10,691 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:10,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:10,691 INFO L85 PathProgramCache]: Analyzing trace with hash -601133856, now seen corresponding path program 1 times [2021-11-19 15:47:10,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:10,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704154263] [2021-11-19 15:47:10,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:10,692 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:10,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:10,693 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:10,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 15:47:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:11,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:47:11,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:11,255 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 15:47:11,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:11,508 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 15:47:11,508 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:11,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704154263] [2021-11-19 15:47:11,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704154263] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:11,508 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:11,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:47:11,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257995581] [2021-11-19 15:47:11,509 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:11,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:47:11,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:11,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:47:11,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:47:11,510 INFO L87 Difference]: Start difference. First operand 872 states and 1086 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 15:47:11,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:11,577 INFO L93 Difference]: Finished difference Result 1642 states and 2054 transitions. [2021-11-19 15:47:11,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:47:11,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2021-11-19 15:47:11,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:11,585 INFO L225 Difference]: With dead ends: 1642 [2021-11-19 15:47:11,585 INFO L226 Difference]: Without dead ends: 816 [2021-11-19 15:47:11,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:47:11,588 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 10 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:11,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 360 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:47:11,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2021-11-19 15:47:11,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 782. [2021-11-19 15:47:11,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 603 states have (on average 1.1774461028192371) internal successors, (710), 605 states have internal predecessors, (710), 110 states have call successors, (110), 53 states have call predecessors, (110), 68 states have return successors, (150), 123 states have call predecessors, (150), 106 states have call successors, (150) [2021-11-19 15:47:11,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 970 transitions. [2021-11-19 15:47:11,663 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 970 transitions. Word has length 106 [2021-11-19 15:47:11,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:11,663 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 970 transitions. [2021-11-19 15:47:11,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 15:47:11,664 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 970 transitions. [2021-11-19 15:47:11,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-19 15:47:11,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:11,665 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:11,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:11,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:11,879 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:11,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:11,879 INFO L85 PathProgramCache]: Analyzing trace with hash 897624677, now seen corresponding path program 1 times [2021-11-19 15:47:11,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:11,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710803065] [2021-11-19 15:47:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:11,880 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:11,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:11,881 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:11,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 15:47:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:12,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 15:47:12,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:12,799 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 15:47:12,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:13,288 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 15:47:13,288 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:13,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710803065] [2021-11-19 15:47:13,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710803065] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:47:13,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:47:13,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 8 [2021-11-19 15:47:13,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903124834] [2021-11-19 15:47:13,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:13,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:47:13,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:13,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:47:13,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-19 15:47:13,291 INFO L87 Difference]: Start difference. First operand 782 states and 970 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 15:47:14,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:14,940 INFO L93 Difference]: Finished difference Result 1284 states and 1576 transitions. [2021-11-19 15:47:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 15:47:14,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 108 [2021-11-19 15:47:14,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:14,948 INFO L225 Difference]: With dead ends: 1284 [2021-11-19 15:47:14,948 INFO L226 Difference]: Without dead ends: 1238 [2021-11-19 15:47:14,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:47:14,950 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 328 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:14,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 524 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-19 15:47:14,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2021-11-19 15:47:15,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1135. [2021-11-19 15:47:15,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 874 states have (on average 1.1784897025171626) internal successors, (1030), 877 states have internal predecessors, (1030), 159 states have call successors, (159), 77 states have call predecessors, (159), 101 states have return successors, (220), 180 states have call predecessors, (220), 154 states have call successors, (220) [2021-11-19 15:47:15,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1409 transitions. [2021-11-19 15:47:15,060 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1409 transitions. Word has length 108 [2021-11-19 15:47:15,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:15,060 INFO L470 AbstractCegarLoop]: Abstraction has 1135 states and 1409 transitions. [2021-11-19 15:47:15,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 15:47:15,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1409 transitions. [2021-11-19 15:47:15,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-19 15:47:15,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:15,063 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:15,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:15,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:15,279 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:15,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1647066880, now seen corresponding path program 1 times [2021-11-19 15:47:15,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:15,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641573230] [2021-11-19 15:47:15,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:15,281 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:15,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:15,282 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:15,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 15:47:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:15,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 15:47:15,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:16,191 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-19 15:47:16,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-19 15:47:16,405 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:16,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641573230] [2021-11-19 15:47:16,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641573230] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:16,406 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:16,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 15:47:16,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886404026] [2021-11-19 15:47:16,406 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:16,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:47:16,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:16,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:47:16,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:47:16,408 INFO L87 Difference]: Start difference. First operand 1135 states and 1409 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 15:47:16,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:16,560 INFO L93 Difference]: Finished difference Result 1816 states and 2248 transitions. [2021-11-19 15:47:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:47:16,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2021-11-19 15:47:16,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:16,566 INFO L225 Difference]: With dead ends: 1816 [2021-11-19 15:47:16,566 INFO L226 Difference]: Without dead ends: 685 [2021-11-19 15:47:16,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:47:16,570 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 13 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:16,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 586 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:47:16,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-11-19 15:47:16,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 654. [2021-11-19 15:47:16,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 504 states have (on average 1.1626984126984128) internal successors, (586), 505 states have internal predecessors, (586), 91 states have call successors, (91), 45 states have call predecessors, (91), 58 states have return successors, (123), 103 states have call predecessors, (123), 87 states have call successors, (123) [2021-11-19 15:47:16,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 800 transitions. [2021-11-19 15:47:16,643 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 800 transitions. Word has length 116 [2021-11-19 15:47:16,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:16,644 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 800 transitions. [2021-11-19 15:47:16,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 15:47:16,645 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 800 transitions. [2021-11-19 15:47:16,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-19 15:47:16,646 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:16,646 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:16,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:16,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:16,863 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:16,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:16,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1887454015, now seen corresponding path program 1 times [2021-11-19 15:47:16,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:16,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920993514] [2021-11-19 15:47:16,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:16,865 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:16,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:16,865 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:16,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 15:47:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:17,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:47:17,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:18,043 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-19 15:47:18,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:18,432 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-19 15:47:18,433 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:18,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920993514] [2021-11-19 15:47:18,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920993514] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:18,433 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:18,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-19 15:47:18,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595783652] [2021-11-19 15:47:18,433 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:18,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:47:18,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:18,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:47:18,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:47:18,435 INFO L87 Difference]: Start difference. First operand 654 states and 800 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 6 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2021-11-19 15:47:20,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:20,154 INFO L93 Difference]: Finished difference Result 2397 states and 2908 transitions. [2021-11-19 15:47:20,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 15:47:20,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 6 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 116 [2021-11-19 15:47:20,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:20,171 INFO L225 Difference]: With dead ends: 2397 [2021-11-19 15:47:20,171 INFO L226 Difference]: Without dead ends: 2340 [2021-11-19 15:47:20,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:47:20,174 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 642 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:20,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [642 Valid, 1015 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-19 15:47:20,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2021-11-19 15:47:20,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 2127. [2021-11-19 15:47:20,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 1636 states have (on average 1.158924205378973) internal successors, (1896), 1634 states have internal predecessors, (1896), 286 states have call successors, (286), 143 states have call predecessors, (286), 204 states have return successors, (433), 349 states have call predecessors, (433), 282 states have call successors, (433) [2021-11-19 15:47:20,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 2615 transitions. [2021-11-19 15:47:20,398 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 2615 transitions. Word has length 116 [2021-11-19 15:47:20,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:20,399 INFO L470 AbstractCegarLoop]: Abstraction has 2127 states and 2615 transitions. [2021-11-19 15:47:20,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 6 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2021-11-19 15:47:20,400 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 2615 transitions. [2021-11-19 15:47:20,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-19 15:47:20,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:20,402 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:20,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:20,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:20,623 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:20,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:20,623 INFO L85 PathProgramCache]: Analyzing trace with hash 938799140, now seen corresponding path program 1 times [2021-11-19 15:47:20,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:20,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552237199] [2021-11-19 15:47:20,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:20,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:20,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:20,626 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:20,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 15:47:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:21,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:47:21,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:21,541 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 15:47:21,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:21,763 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 15:47:21,764 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:21,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552237199] [2021-11-19 15:47:21,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552237199] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:21,764 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:21,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 15:47:21,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129315957] [2021-11-19 15:47:21,765 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:21,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:47:21,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:21,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:47:21,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:47:21,766 INFO L87 Difference]: Start difference. First operand 2127 states and 2615 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 15:47:22,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:22,072 INFO L93 Difference]: Finished difference Result 2173 states and 2663 transitions. [2021-11-19 15:47:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:47:22,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2021-11-19 15:47:22,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:22,087 INFO L225 Difference]: With dead ends: 2173 [2021-11-19 15:47:22,087 INFO L226 Difference]: Without dead ends: 2154 [2021-11-19 15:47:22,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:47:22,089 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 199 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:22,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 382 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:47:22,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2021-11-19 15:47:22,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 2127. [2021-11-19 15:47:22,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 1636 states have (on average 1.1534229828850855) internal successors, (1887), 1634 states have internal predecessors, (1887), 286 states have call successors, (286), 143 states have call predecessors, (286), 204 states have return successors, (433), 349 states have call predecessors, (433), 282 states have call successors, (433) [2021-11-19 15:47:22,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 2606 transitions. [2021-11-19 15:47:22,322 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 2606 transitions. Word has length 129 [2021-11-19 15:47:22,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:22,322 INFO L470 AbstractCegarLoop]: Abstraction has 2127 states and 2606 transitions. [2021-11-19 15:47:22,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 15:47:22,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 2606 transitions. [2021-11-19 15:47:22,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-19 15:47:22,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:22,325 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:22,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:22,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:22,539 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:22,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:22,539 INFO L85 PathProgramCache]: Analyzing trace with hash -702188261, now seen corresponding path program 1 times [2021-11-19 15:47:22,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:22,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741775128] [2021-11-19 15:47:22,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:22,541 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:22,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:22,542 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:22,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 15:47:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:23,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:47:23,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:23,571 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 15:47:23,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:24,070 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 15:47:24,070 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:24,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741775128] [2021-11-19 15:47:24,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741775128] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:47:24,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1496268833] [2021-11-19 15:47:24,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:24,071 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:47:24,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:47:24,072 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:47:24,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2021-11-19 15:47:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:24,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:47:24,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:25,071 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 15:47:25,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:25,495 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 15:47:25,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1496268833] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:25,495 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 15:47:25,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4, 4] total 6 [2021-11-19 15:47:25,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341983642] [2021-11-19 15:47:25,496 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:25,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:47:25,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:25,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:47:25,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:47:25,497 INFO L87 Difference]: Start difference. First operand 2127 states and 2606 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-19 15:47:25,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:25,695 INFO L93 Difference]: Finished difference Result 2195 states and 2669 transitions. [2021-11-19 15:47:25,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:47:25,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 133 [2021-11-19 15:47:25,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:25,701 INFO L225 Difference]: With dead ends: 2195 [2021-11-19 15:47:25,701 INFO L226 Difference]: Without dead ends: 883 [2021-11-19 15:47:25,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:47:25,705 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 50 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:25,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 650 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:47:25,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2021-11-19 15:47:25,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2021-11-19 15:47:25,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 674 states have (on average 1.1112759643916914) internal successors, (749), 670 states have internal predecessors, (749), 117 states have call successors, (117), 65 states have call predecessors, (117), 91 states have return successors, (166), 147 states have call predecessors, (166), 115 states have call successors, (166) [2021-11-19 15:47:25,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1032 transitions. [2021-11-19 15:47:25,794 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1032 transitions. Word has length 133 [2021-11-19 15:47:25,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:25,795 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 1032 transitions. [2021-11-19 15:47:25,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-19 15:47:25,796 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1032 transitions. [2021-11-19 15:47:25,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-19 15:47:25,798 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:25,798 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:25,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:26,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2021-11-19 15:47:26,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 15:47:26,223 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:26,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:26,223 INFO L85 PathProgramCache]: Analyzing trace with hash -313806482, now seen corresponding path program 1 times [2021-11-19 15:47:26,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:26,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326927794] [2021-11-19 15:47:26,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:26,225 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:26,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:26,226 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:26,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 15:47:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:26,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:47:26,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:27,144 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-19 15:47:27,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:27,424 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-19 15:47:27,424 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:27,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326927794] [2021-11-19 15:47:27,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326927794] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:27,424 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:27,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:47:27,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505610322] [2021-11-19 15:47:27,425 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:27,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:47:27,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:27,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:47:27,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:47:27,426 INFO L87 Difference]: Start difference. First operand 883 states and 1032 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 15:47:27,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:27,457 INFO L93 Difference]: Finished difference Result 889 states and 1037 transitions. [2021-11-19 15:47:27,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:47:27,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 146 [2021-11-19 15:47:27,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:27,459 INFO L225 Difference]: With dead ends: 889 [2021-11-19 15:47:27,459 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 15:47:27,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:47:27,462 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 8 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:27,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 289 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:47:27,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 15:47:27,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 15:47:27,463 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) [2021-11-19 15:47:27,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 15:47:27,464 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 146 [2021-11-19 15:47:27,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:27,464 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 15:47:27,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 15:47:27,465 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 15:47:27,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 15:47:27,467 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 15:47:27,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:27,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:27,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 15:47:42,929 INFO L861 garLoopResultBuilder]: At program point L4257(lines 4256 4258) the Hoare annotation is: true [2021-11-19 15:47:42,929 INFO L858 garLoopResultBuilder]: For program point kbtab_initEXIT(lines 3909 3925) no Hoare annotation was computed. [2021-11-19 15:47:42,930 INFO L861 garLoopResultBuilder]: At program point L3922(lines 3911 3924) the Hoare annotation is: true [2021-11-19 15:47:42,930 INFO L861 garLoopResultBuilder]: At program point kbtab_initENTRY(lines 3909 3925) the Hoare annotation is: true [2021-11-19 15:47:42,930 INFO L861 garLoopResultBuilder]: At program point L3471(lines 3465 3473) the Hoare annotation is: true [2021-11-19 15:47:42,930 INFO L858 garLoopResultBuilder]: For program point L3915(lines 3915 3918) no Hoare annotation was computed. [2021-11-19 15:47:42,930 INFO L858 garLoopResultBuilder]: For program point kbtab_initFINAL(lines 3909 3925) no Hoare annotation was computed. [2021-11-19 15:47:42,930 INFO L858 garLoopResultBuilder]: For program point L4210-1(line 4210) no Hoare annotation was computed. [2021-11-19 15:47:42,930 INFO L858 garLoopResultBuilder]: For program point dev_get_drvdataFINAL(lines 4209 4211) no Hoare annotation was computed. [2021-11-19 15:47:42,930 INFO L861 garLoopResultBuilder]: At program point dev_get_drvdataENTRY(lines 4209 4211) the Hoare annotation is: true [2021-11-19 15:47:42,930 INFO L861 garLoopResultBuilder]: At program point L4210(line 4210) the Hoare annotation is: true [2021-11-19 15:47:42,930 INFO L858 garLoopResultBuilder]: For program point dev_get_drvdataEXIT(lines 4209 4211) no Hoare annotation was computed. [2021-11-19 15:47:42,930 INFO L858 garLoopResultBuilder]: For program point kfreeEXIT(lines 4264 4266) no Hoare annotation was computed. [2021-11-19 15:47:42,931 INFO L861 garLoopResultBuilder]: At program point kfreeENTRY(lines 4264 4266) the Hoare annotation is: true [2021-11-19 15:47:42,931 INFO L858 garLoopResultBuilder]: For program point kfreeFINAL(lines 4264 4266) no Hoare annotation was computed. [2021-11-19 15:47:42,931 INFO L858 garLoopResultBuilder]: For program point input_set_abs_paramsEXIT(lines 4226 4228) no Hoare annotation was computed. [2021-11-19 15:47:42,931 INFO L861 garLoopResultBuilder]: At program point input_set_abs_paramsENTRY(lines 4226 4228) the Hoare annotation is: true [2021-11-19 15:47:42,931 INFO L858 garLoopResultBuilder]: For program point input_set_abs_paramsFINAL(lines 4226 4228) no Hoare annotation was computed. [2021-11-19 15:47:42,931 INFO L858 garLoopResultBuilder]: For program point kbtab_exitFINAL(lines 3928 3936) no Hoare annotation was computed. [2021-11-19 15:47:42,932 INFO L861 garLoopResultBuilder]: At program point L4250(lines 4249 4251) the Hoare annotation is: true [2021-11-19 15:47:42,932 INFO L861 garLoopResultBuilder]: At program point kbtab_exitENTRY(lines 3928 3936) the Hoare annotation is: true [2021-11-19 15:47:42,932 INFO L858 garLoopResultBuilder]: For program point kbtab_exitEXIT(lines 3928 3936) no Hoare annotation was computed. [2021-11-19 15:47:42,932 INFO L861 garLoopResultBuilder]: At program point L4207(line 4207) the Hoare annotation is: true [2021-11-19 15:47:42,932 INFO L858 garLoopResultBuilder]: For program point L4207-1(line 4207) no Hoare annotation was computed. [2021-11-19 15:47:42,932 INFO L861 garLoopResultBuilder]: At program point L4207-2(lines 4206 4208) the Hoare annotation is: true [2021-11-19 15:47:42,933 INFO L858 garLoopResultBuilder]: For program point kzallocEXIT(lines 3405 3413) no Hoare annotation was computed. [2021-11-19 15:47:42,933 INFO L861 garLoopResultBuilder]: At program point L3401(lines 3394 3403) the Hoare annotation is: true [2021-11-19 15:47:42,933 INFO L861 garLoopResultBuilder]: At program point kzallocENTRY(lines 3405 3413) the Hoare annotation is: true [2021-11-19 15:47:42,933 INFO L858 garLoopResultBuilder]: For program point kzallocFINAL(lines 3405 3413) no Hoare annotation was computed. [2021-11-19 15:47:42,933 INFO L861 garLoopResultBuilder]: At program point ldv_assume_stopENTRY(lines 4055 4061) the Hoare annotation is: true [2021-11-19 15:47:42,933 INFO L858 garLoopResultBuilder]: For program point ldv_assume_stopEXIT(lines 4055 4061) no Hoare annotation was computed. [2021-11-19 15:47:42,934 INFO L854 garLoopResultBuilder]: At program point L4117(lines 4093 4122) the Hoare annotation is: (or (and (= ~ldv_coherent_state~0 (_ bv0 32)) (not (= (_ bv0 64) (bvadd usb_free_coherent_~addr.offset usb_free_coherent_~addr.base)))) (not (= |old(~ldv_coherent_state~0)| (_ bv1 32))) (not (= ~ldv_urb_state~0 (_ bv0 32)))) [2021-11-19 15:47:42,934 INFO L854 garLoopResultBuilder]: At program point usb_free_coherentENTRY(lines 4093 4122) the Hoare annotation is: (or (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= |old(~ldv_coherent_state~0)| (_ bv1 32))) (not (= ~ldv_urb_state~0 (_ bv0 32)))) [2021-11-19 15:47:42,934 INFO L858 garLoopResultBuilder]: For program point L4109-1(lines 4106 4111) no Hoare annotation was computed. [2021-11-19 15:47:42,934 INFO L854 garLoopResultBuilder]: At program point L4109(line 4109) the Hoare annotation is: (or (not (= |old(~ldv_coherent_state~0)| (_ bv1 32))) (not (= ~ldv_urb_state~0 (_ bv0 32)))) [2021-11-19 15:47:42,934 INFO L858 garLoopResultBuilder]: For program point usb_free_coherentEXIT(lines 4093 4122) no Hoare annotation was computed. [2021-11-19 15:47:42,934 INFO L861 garLoopResultBuilder]: At program point L4101(line 4101) the Hoare annotation is: true [2021-11-19 15:47:42,935 INFO L858 garLoopResultBuilder]: For program point L4099(lines 4097 4116) no Hoare annotation was computed. [2021-11-19 15:47:42,935 INFO L854 garLoopResultBuilder]: At program point L4097loopEntry(lines 4097 4116) the Hoare annotation is: (or (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= |old(~ldv_coherent_state~0)| (_ bv1 32))) (not (= ~ldv_urb_state~0 (_ bv0 32)))) [2021-11-19 15:47:42,935 INFO L858 garLoopResultBuilder]: For program point L4106(lines 4106 4111) no Hoare annotation was computed. [2021-11-19 15:47:42,935 INFO L858 garLoopResultBuilder]: For program point L4098(lines 4097 4116) no Hoare annotation was computed. [2021-11-19 15:47:42,935 INFO L858 garLoopResultBuilder]: For program point L3437-1(line 3437) no Hoare annotation was computed. [2021-11-19 15:47:42,936 INFO L861 garLoopResultBuilder]: At program point L3437(line 3437) the Hoare annotation is: true [2021-11-19 15:47:42,936 INFO L861 garLoopResultBuilder]: At program point usb_set_intfdataENTRY(lines 3433 3441) the Hoare annotation is: true [2021-11-19 15:47:42,936 INFO L858 garLoopResultBuilder]: For program point usb_set_intfdataFINAL(lines 3433 3441) no Hoare annotation was computed. [2021-11-19 15:47:42,936 INFO L858 garLoopResultBuilder]: For program point usb_set_intfdataEXIT(lines 3433 3441) no Hoare annotation was computed. [2021-11-19 15:47:42,937 INFO L858 garLoopResultBuilder]: For program point L4239(line 4239) no Hoare annotation was computed. [2021-11-19 15:47:42,937 INFO L858 garLoopResultBuilder]: For program point ldv_undefined_pointerFINAL(lines 4238 4240) no Hoare annotation was computed. [2021-11-19 15:47:42,937 INFO L861 garLoopResultBuilder]: At program point ldv_undefined_pointerENTRY(lines 4238 4240) the Hoare annotation is: true [2021-11-19 15:47:42,937 INFO L858 garLoopResultBuilder]: For program point ldv_undefined_pointerEXIT(lines 4238 4240) no Hoare annotation was computed. [2021-11-19 15:47:42,937 INFO L861 garLoopResultBuilder]: At program point L4158(line 4158) the Hoare annotation is: true [2021-11-19 15:47:42,937 INFO L858 garLoopResultBuilder]: For program point L4156(lines 4154 4173) no Hoare annotation was computed. [2021-11-19 15:47:42,937 INFO L854 garLoopResultBuilder]: At program point L4154loopEntry(lines 4154 4173) the Hoare annotation is: (or (not (= ~ldv_coherent_state~0 (_ bv1 32))) (not (= |old(~ldv_urb_state~0)| (_ bv1 32))) (= ~ldv_urb_state~0 (_ bv1 32)) (not (= ~res_kbtab_probe_3~0 (_ bv0 32)))) [2021-11-19 15:47:42,937 INFO L858 garLoopResultBuilder]: For program point usb_free_urbEXIT(lines 4150 4179) no Hoare annotation was computed. [2021-11-19 15:47:42,937 INFO L854 garLoopResultBuilder]: At program point usb_free_urbENTRY(lines 4150 4179) the Hoare annotation is: (or (not (= ~ldv_coherent_state~0 (_ bv1 32))) (not (= |old(~ldv_urb_state~0)| (_ bv1 32))) (= ~ldv_urb_state~0 (_ bv1 32)) (not (= ~res_kbtab_probe_3~0 (_ bv0 32)))) [2021-11-19 15:47:42,937 INFO L858 garLoopResultBuilder]: For program point L4163(lines 4163 4168) no Hoare annotation was computed. [2021-11-19 15:47:42,937 INFO L858 garLoopResultBuilder]: For program point L4155(lines 4154 4173) no Hoare annotation was computed. [2021-11-19 15:47:42,937 INFO L854 garLoopResultBuilder]: At program point L4174(lines 4150 4179) the Hoare annotation is: (or (and (not (= (_ bv0 64) (bvadd usb_free_urb_~urb.base usb_free_urb_~urb.offset))) (= ~ldv_urb_state~0 (_ bv0 32))) (not (= ~ldv_coherent_state~0 (_ bv1 32))) (not (= |old(~ldv_urb_state~0)| (_ bv1 32))) (not (= ~res_kbtab_probe_3~0 (_ bv0 32)))) [2021-11-19 15:47:42,938 INFO L854 garLoopResultBuilder]: At program point L4166(line 4166) the Hoare annotation is: (or (not (= ~ldv_coherent_state~0 (_ bv1 32))) (not (= |old(~ldv_urb_state~0)| (_ bv1 32))) (not (= ~res_kbtab_probe_3~0 (_ bv0 32)))) [2021-11-19 15:47:42,938 INFO L858 garLoopResultBuilder]: For program point L4166-1(lines 4163 4168) no Hoare annotation was computed. [2021-11-19 15:47:42,938 INFO L861 garLoopResultBuilder]: At program point ldv_mallocENTRY(lines 4201 4205) the Hoare annotation is: true [2021-11-19 15:47:42,938 INFO L858 garLoopResultBuilder]: For program point L4203(line 4203) no Hoare annotation was computed. [2021-11-19 15:47:42,938 INFO L858 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 4201 4205) no Hoare annotation was computed. [2021-11-19 15:47:42,938 INFO L858 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 4201 4205) no Hoare annotation was computed. [2021-11-19 15:47:42,939 INFO L854 garLoopResultBuilder]: At program point L4032(lines 3979 4033) the Hoare annotation is: (and (= ~ldv_coherent_state~0 (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,939 INFO L858 garLoopResultBuilder]: For program point L3487(lines 3487 3494) no Hoare annotation was computed. [2021-11-19 15:47:42,939 INFO L854 garLoopResultBuilder]: At program point L3867(lines 3793 3873) the Hoare annotation is: (and (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,939 INFO L854 garLoopResultBuilder]: At program point L4247(lines 4246 4248) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,939 INFO L854 garLoopResultBuilder]: At program point L3884(line 3884) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) [2021-11-19 15:47:42,940 INFO L858 garLoopResultBuilder]: For program point L3851(lines 3851 3854) no Hoare annotation was computed. [2021-11-19 15:47:42,940 INFO L858 garLoopResultBuilder]: For program point L3884-1(line 3884) no Hoare annotation was computed. [2021-11-19 15:47:42,940 INFO L858 garLoopResultBuilder]: For program point L4132(line 4132) no Hoare annotation was computed. [2021-11-19 15:47:42,940 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 15:47:42,940 INFO L858 garLoopResultBuilder]: For program point L3802(lines 3802 3808) no Hoare annotation was computed. [2021-11-19 15:47:42,940 INFO L854 garLoopResultBuilder]: At program point L3852(lines 3793 3873) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,940 INFO L858 garLoopResultBuilder]: For program point L3885-1(line 3885) no Hoare annotation was computed. [2021-11-19 15:47:42,941 INFO L854 garLoopResultBuilder]: At program point L3885(line 3885) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,941 INFO L858 garLoopResultBuilder]: For program point L3456(lines 3456 3460) no Hoare annotation was computed. [2021-11-19 15:47:42,941 INFO L858 garLoopResultBuilder]: For program point L3456-2(lines 3456 3460) no Hoare annotation was computed. [2021-11-19 15:47:42,941 INFO L858 garLoopResultBuilder]: For program point L3985(lines 3985 3990) no Hoare annotation was computed. [2021-11-19 15:47:42,941 INFO L854 garLoopResultBuilder]: At program point L3886(line 3886) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,941 INFO L858 garLoopResultBuilder]: For program point L3820(lines 3820 3823) no Hoare annotation was computed. [2021-11-19 15:47:42,942 INFO L854 garLoopResultBuilder]: At program point L3886-1(lines 3875 3890) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,942 INFO L854 garLoopResultBuilder]: At program point L4233(lines 4232 4234) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32))) (.cse2 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) (.cse0 (= ~res_kbtab_probe_3~0 (_ bv0 32)))) (or (and .cse0 .cse1 (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) .cse2) (and (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (not .cse1) .cse2 (not .cse0) (= ~ldv_urb_state~0 (_ bv0 32))))) [2021-11-19 15:47:42,942 INFO L858 garLoopResultBuilder]: For program point L3490(lines 3490 3494) no Hoare annotation was computed. [2021-11-19 15:47:42,942 INFO L858 garLoopResultBuilder]: For program point L3490-2(lines 3487 3494) no Hoare annotation was computed. [2021-11-19 15:47:42,942 INFO L854 garLoopResultBuilder]: At program point L3870(line 3870) the Hoare annotation is: (and (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,942 INFO L858 garLoopResultBuilder]: For program point L3870-1(line 3870) no Hoare annotation was computed. [2021-11-19 15:47:42,943 INFO L858 garLoopResultBuilder]: For program point L4184(lines 4184 4189) no Hoare annotation was computed. [2021-11-19 15:47:42,943 INFO L858 garLoopResultBuilder]: For program point L4135(lines 4135 4138) no Hoare annotation was computed. [2021-11-19 15:47:42,943 INFO L858 garLoopResultBuilder]: For program point L3805(lines 3805 3808) no Hoare annotation was computed. [2021-11-19 15:47:42,943 INFO L858 garLoopResultBuilder]: For program point L4086(lines 4071 4087) no Hoare annotation was computed. [2021-11-19 15:47:42,943 INFO L858 garLoopResultBuilder]: For program point L3987-1(lines 3985 3990) no Hoare annotation was computed. [2021-11-19 15:47:42,943 INFO L858 garLoopResultBuilder]: For program point L3987(lines 3987 3990) no Hoare annotation was computed. [2021-11-19 15:47:42,943 INFO L854 garLoopResultBuilder]: At program point L4037(lines 3968 4044) the Hoare annotation is: (and (= ~ldv_coherent_state~0 (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,944 INFO L854 garLoopResultBuilder]: At program point L3426(line 3426) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) [2021-11-19 15:47:42,944 INFO L854 garLoopResultBuilder]: At program point L3872(lines 3782 3874) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32))) (.cse1 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)))) (or (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) .cse0 (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) .cse1) (and (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (not .cse0) .cse1 (= ~ldv_urb_state~0 (_ bv0 32))))) [2021-11-19 15:47:42,944 INFO L858 garLoopResultBuilder]: For program point L3426-1(line 3426) no Hoare annotation was computed. [2021-11-19 15:47:42,944 INFO L854 garLoopResultBuilder]: At program point L3839-1(line 3839) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,944 INFO L854 garLoopResultBuilder]: At program point L3839(line 3839) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,945 INFO L854 garLoopResultBuilder]: At program point L3509(lines 3506 3511) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,945 INFO L854 garLoopResultBuilder]: At program point L3856(line 3856) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,945 INFO L858 garLoopResultBuilder]: For program point L3856-1(line 3856) no Hoare annotation was computed. [2021-11-19 15:47:42,945 INFO L854 garLoopResultBuilder]: At program point L4236(lines 4235 4237) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= ~ldv_coherent_state~0 (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,945 INFO L854 garLoopResultBuilder]: At program point L3972(line 3972) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= ~ldv_coherent_state~0 (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,945 INFO L858 garLoopResultBuilder]: For program point L3972-1(line 3972) no Hoare annotation was computed. [2021-11-19 15:47:42,946 INFO L854 garLoopResultBuilder]: At program point L3840(line 3840) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,946 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 15:47:42,946 INFO L858 garLoopResultBuilder]: For program point L4187-1(lines 4183 4197) no Hoare annotation was computed. [2021-11-19 15:47:42,946 INFO L854 garLoopResultBuilder]: At program point L4220(lines 4219 4221) the Hoare annotation is: (and (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,946 INFO L854 garLoopResultBuilder]: At program point L4187(line 4187) the Hoare annotation is: false [2021-11-19 15:47:42,946 INFO L854 garLoopResultBuilder]: At program point L3576(lines 3569 3578) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,946 INFO L854 garLoopResultBuilder]: At program point L4072loopEntry(lines 4072 4085) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,946 INFO L854 garLoopResultBuilder]: At program point L3428(lines 3422 3430) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) [2021-11-19 15:47:42,946 INFO L854 garLoopResultBuilder]: At program point L3461(lines 3449 3463) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,947 INFO L858 garLoopResultBuilder]: For program point L3841(line 3841) no Hoare annotation was computed. [2021-11-19 15:47:42,947 INFO L854 garLoopResultBuilder]: At program point L4089(lines 4066 4091) the Hoare annotation is: (let ((.cse1 (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (.cse0 (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32)))) (.cse2 (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (.cse3 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) (.cse4 (= ~ldv_urb_state~0 (_ bv0 32)))) (or (and (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.offset|) .cse0 (= ~ldv_coherent_state~0 (_ bv0 32)) .cse1 .cse2 .cse3 (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.offset|) .cse4) (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not .cse1) .cse0 (= ~ldv_coherent_state~0 (_ bv1 32)) (not .cse2) .cse3 .cse4))) [2021-11-19 15:47:42,947 INFO L854 garLoopResultBuilder]: At program point L4073(line 4073) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,947 INFO L858 garLoopResultBuilder]: For program point L3974(lines 3974 3977) no Hoare annotation was computed. [2021-11-19 15:47:42,947 INFO L854 garLoopResultBuilder]: At program point L3446(lines 3442 3448) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,947 INFO L858 garLoopResultBuilder]: For program point L3529-1(line 3529) no Hoare annotation was computed. [2021-11-19 15:47:42,947 INFO L854 garLoopResultBuilder]: At program point L3496(lines 3475 3498) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,947 INFO L858 garLoopResultBuilder]: For program point L4008(lines 4008 4011) no Hoare annotation was computed. [2021-11-19 15:47:42,947 INFO L854 garLoopResultBuilder]: At program point L3529(line 3529) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,947 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 15:47:42,947 INFO L858 garLoopResultBuilder]: For program point L3513-1(line 3513) no Hoare annotation was computed. [2021-11-19 15:47:42,948 INFO L854 garLoopResultBuilder]: At program point L3513(line 3513) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32)))) (.cse1 (= ~ldv_coherent_state~0 (_ bv0 32))) (.cse2 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) (.cse3 (= ~ldv_urb_state~0 (_ bv0 32)))) (or (and .cse0 .cse1 (= (_ bv0 64) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.base|) .cse2 .cse3 (= (_ bv0 64) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset|)) (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3))) [2021-11-19 15:47:42,948 INFO L854 garLoopResultBuilder]: At program point L3513-2(lines 3512 3514) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32)))) (.cse1 (= ~ldv_coherent_state~0 (_ bv0 32))) (.cse2 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) (.cse3 (= ~ldv_urb_state~0 (_ bv0 32)))) (or (and .cse0 .cse1 (= (_ bv0 64) |ULTIMATE.start_input_allocate_device_#res#1.base|) .cse2 .cse3 (= (_ bv0 64) |ULTIMATE.start_input_allocate_device_#res#1.offset|)) (and .cse0 .cse1 (= (_ bv0 64) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.base|) .cse2 .cse3 (= (_ bv0 64) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset|)) (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3))) [2021-11-19 15:47:42,948 INFO L858 garLoopResultBuilder]: For program point L4075(line 4075) no Hoare annotation was computed. [2021-11-19 15:47:42,948 INFO L854 garLoopResultBuilder]: At program point L4224(lines 4223 4225) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,948 INFO L858 garLoopResultBuilder]: For program point L3861-1(line 3861) no Hoare annotation was computed. [2021-11-19 15:47:42,948 INFO L854 garLoopResultBuilder]: At program point L3861(line 3861) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,948 INFO L854 garLoopResultBuilder]: At program point L3531(lines 3525 3533) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-19 15:47:42,948 INFO L854 garLoopResultBuilder]: At program point L4043(lines 3961 4045) the Hoare annotation is: (= ~ldv_urb_state~0 (_ bv0 32)) [2021-11-19 15:47:42,948 INFO L858 garLoopResultBuilder]: For program point L3994(lines 3994 4030) no Hoare annotation was computed. [2021-11-19 15:47:42,948 INFO L858 garLoopResultBuilder]: For program point L4143(lines 4128 4144) no Hoare annotation was computed. [2021-11-19 15:47:42,948 INFO L858 garLoopResultBuilder]: For program point L3813(lines 3813 3816) no Hoare annotation was computed. [2021-11-19 15:47:42,948 INFO L854 garLoopResultBuilder]: At program point L4193-1(lines 4181 4198) the Hoare annotation is: (= ~ldv_urb_state~0 (_ bv0 32)) [2021-11-19 15:47:42,949 INFO L854 garLoopResultBuilder]: At program point L4193(line 4193) the Hoare annotation is: false [2021-11-19 15:47:42,949 INFO L854 garLoopResultBuilder]: At program point L4028(lines 3980 4031) the Hoare annotation is: (let ((.cse0 (= ~res_kbtab_probe_3~0 (_ bv0 32)))) (or (and .cse0 (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) (and .cse0 (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))))) [2021-11-19 15:47:42,949 INFO L854 garLoopResultBuilder]: At program point L3995(lines 3994 4030) the Hoare annotation is: (let ((.cse0 (= ~res_kbtab_probe_3~0 (_ bv0 32)))) (or (and .cse0 (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) (and .cse0 (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))))) [2021-11-19 15:47:42,949 INFO L854 garLoopResultBuilder]: At program point L3863(lines 3793 3873) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,949 INFO L858 garLoopResultBuilder]: For program point L4078(lines 4078 4081) no Hoare annotation was computed. [2021-11-19 15:47:42,950 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 15:47:42,950 INFO L854 garLoopResultBuilder]: At program point L3798(line 3798) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,950 INFO L858 garLoopResultBuilder]: For program point L3798-1(line 3798) no Hoare annotation was computed. [2021-11-19 15:47:42,950 INFO L854 garLoopResultBuilder]: At program point L4129loopEntry(lines 4129 4142) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,950 INFO L858 garLoopResultBuilder]: For program point L3997(lines 3997 4030) no Hoare annotation was computed. [2021-11-19 15:47:42,950 INFO L858 garLoopResultBuilder]: For program point L3865-1(line 3865) no Hoare annotation was computed. [2021-11-19 15:47:42,951 INFO L854 garLoopResultBuilder]: At program point L3865(line 3865) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,951 INFO L854 garLoopResultBuilder]: At program point L4146(lines 4124 4148) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|))) (.cse1 (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32)))) (.cse2 (= ~ldv_coherent_state~0 (_ bv1 32))) (.cse3 (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|))) (.cse4 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) (.cse5 (= (_ bv0 64) |ULTIMATE.start_usb_alloc_urb_#res#1.base|)) (.cse6 (bvsge ~ldv_coherent_state~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 (= (_ bv0 64) |ULTIMATE.start_usb_alloc_urb_#res#1.offset|) .cse4 (= ~ldv_urb_state~0 (_ bv0 32)) .cse5 .cse6) (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) .cse0 (= ~ldv_urb_state~0 (_ bv1 32)) .cse1 .cse2 (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_urb_~arbitrary_memory~1#1.base|)) .cse3 .cse4 (not .cse5) .cse6))) [2021-11-19 15:47:42,952 INFO L858 garLoopResultBuilder]: For program point L3981(line 3981) no Hoare annotation was computed. [2021-11-19 15:47:42,952 INFO L854 garLoopResultBuilder]: At program point L3882(line 3882) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) [2021-11-19 15:47:42,952 INFO L858 garLoopResultBuilder]: For program point L3882-1(line 3882) no Hoare annotation was computed. [2021-11-19 15:47:42,952 INFO L854 garLoopResultBuilder]: At program point L4130(line 4130) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-19 15:47:42,952 INFO L854 garLoopResultBuilder]: At program point L3998(lines 3997 4030) the Hoare annotation is: (let ((.cse0 (= ~res_kbtab_probe_3~0 (_ bv0 32)))) (or (and .cse0 (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) (and .cse0 (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))))) [2021-11-19 15:47:42,952 INFO L854 garLoopResultBuilder]: At program point L4230(lines 4229 4231) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) [2021-11-19 15:47:42,952 INFO L861 garLoopResultBuilder]: At program point ldv_blast_assertENTRY(lines 4046 4051) the Hoare annotation is: true [2021-11-19 15:47:42,952 INFO L858 garLoopResultBuilder]: For program point ldv_blast_assertEXIT(lines 4046 4051) no Hoare annotation was computed. [2021-11-19 15:47:42,952 INFO L858 garLoopResultBuilder]: For program point ldv_blast_assertFINAL(lines 4046 4051) no Hoare annotation was computed. [2021-11-19 15:47:42,952 INFO L858 garLoopResultBuilder]: For program point ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4049) no Hoare annotation was computed. [2021-11-19 15:47:42,952 INFO L858 garLoopResultBuilder]: For program point dev_set_drvdataFINAL(lines 4213 4215) no Hoare annotation was computed. [2021-11-19 15:47:42,953 INFO L858 garLoopResultBuilder]: For program point dev_set_drvdataEXIT(lines 4213 4215) no Hoare annotation was computed. [2021-11-19 15:47:42,953 INFO L861 garLoopResultBuilder]: At program point dev_set_drvdataENTRY(lines 4213 4215) the Hoare annotation is: true [2021-11-19 15:47:42,956 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:42,958 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 15:47:43,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 03:47:43 BoogieIcfgContainer [2021-11-19 15:47:43,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 15:47:43,030 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 15:47:43,030 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 15:47:43,033 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 15:47:43,034 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:46:33" (3/4) ... [2021-11-19 15:47:43,037 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 15:47:43,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure kbtab_init [2021-11-19 15:47:43,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure dev_get_drvdata [2021-11-19 15:47:43,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2021-11-19 15:47:43,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_set_intfdata [2021-11-19 15:47:43,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undefined_pointer [2021-11-19 15:47:43,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_free_urb [2021-11-19 15:47:43,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure input_set_abs_params [2021-11-19 15:47:43,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure kbtab_exit [2021-11-19 15:47:43,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2021-11-19 15:47:43,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2021-11-19 15:47:43,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_assume_stop [2021-11-19 15:47:43,045 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_free_coherent [2021-11-19 15:47:43,046 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_blast_assert [2021-11-19 15:47:43,046 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure dev_set_drvdata [2021-11-19 15:47:43,069 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2021-11-19 15:47:43,070 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2021-11-19 15:47:43,072 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-19 15:47:43,074 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-19 15:47:43,076 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 15:47:43,114 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) || (((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) [2021-11-19 15:47:43,115 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((ldv_coherent_state == 0bv32 && !(0bv64 == ~bvadd16(addr, addr))) || !(\old(ldv_coherent_state) == 1bv32)) || !(ldv_urb_state == 0bv32) [2021-11-19 15:47:43,115 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0bv64 == ~bvadd16(urb, urb)) && ldv_urb_state == 0bv32) || !(ldv_coherent_state == 1bv32)) || !(\old(ldv_urb_state) == 1bv32)) || !(res_kbtab_probe_3 == 0bv32) [2021-11-19 15:47:43,115 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) || (((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) [2021-11-19 15:47:43,116 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) || (((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) [2021-11-19 15:47:43,116 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0bv64 == arbitrary_memory) && !(error == 0bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 [2021-11-19 15:47:43,116 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) && ldv_urb_state == 0bv32 [2021-11-19 15:47:43,118 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (ldv_coherent_state == 1bv32 || !(\old(ldv_coherent_state) == 1bv32)) || !(ldv_urb_state == 0bv32) [2021-11-19 15:47:43,119 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) || ((((!(error == 0bv32) && ldv_coherent_state == 0bv32) && !(\result == 0bv32)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) [2021-11-19 15:47:43,119 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) || (((((!(error == 0bv32) && ldv_coherent_state == 0bv32) && !(\result == 0bv32)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && !(res_kbtab_probe_3 == 0bv32)) && ldv_urb_state == 0bv32) [2021-11-19 15:47:43,119 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32 [2021-11-19 15:47:43,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32 [2021-11-19 15:47:43,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-19 15:47:43,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0bv64 == \result && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 0bv32) && 0bv64 == arbitrary_memory) && 0bv64 == \result) && ldv_s_kbtab_driver_usb_driver == 0bv32) && 0bv64 == arbitrary_memory) && ldv_urb_state == 0bv32) || ((((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) [2021-11-19 15:47:43,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(0bv64 == arbitrary_memory) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && 0bv64 == \result) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) && 0bv64 == \result) && ~bvsge32(ldv_coherent_state, 1bv32)) || (((((((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == arbitrary_memory)) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && !(0bv64 == \result)) && ~bvsge32(ldv_coherent_state, 1bv32)) [2021-11-19 15:47:43,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(ldv_coherent_state == 1bv32) || !(\old(ldv_urb_state) == 1bv32)) || ldv_urb_state == 1bv32) || !(res_kbtab_probe_3 == 0bv32) [2021-11-19 15:47:43,120 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == ~bvadd16(error, 12bv32) && ldv_coherent_state == 0bv32) && 0bv64 == \result) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) && 0bv64 == \result) || (((((0bv32 == ~bvadd16(error, 12bv32) && ldv_coherent_state == 0bv32) && 0bv64 == kbtab) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) && 0bv64 == kbtab)) || ((((res_kbtab_probe_3 == 0bv32 && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) [2021-11-19 15:47:43,121 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 [2021-11-19 15:47:43,121 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-19 15:47:43,121 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-19 15:47:43,122 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-19 15:47:43,122 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-19 15:47:43,122 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-19 15:47:43,122 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-19 15:47:43,123 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && !(error == 0bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-19 15:47:43,301 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 15:47:43,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 15:47:43,302 INFO L158 Benchmark]: Toolchain (without parser) took 82511.04ms. Allocated memory was 54.5MB in the beginning and 425.7MB in the end (delta: 371.2MB). Free memory was 26.8MB in the beginning and 182.5MB in the end (delta: -155.7MB). Peak memory consumption was 215.5MB. Max. memory is 16.1GB. [2021-11-19 15:47:43,302 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 54.5MB. Free memory was 35.6MB in the beginning and 35.5MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:47:43,303 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1844.50ms. Allocated memory was 54.5MB in the beginning and 90.2MB in the end (delta: 35.7MB). Free memory was 26.7MB in the beginning and 35.6MB in the end (delta: -8.9MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2021-11-19 15:47:43,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 183.42ms. Allocated memory is still 90.2MB. Free memory was 35.6MB in the beginning and 48.1MB in the end (delta: -12.5MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2021-11-19 15:47:43,309 INFO L158 Benchmark]: Boogie Preprocessor took 176.17ms. Allocated memory is still 90.2MB. Free memory was 48.1MB in the beginning and 42.2MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 15:47:43,309 INFO L158 Benchmark]: RCFGBuilder took 10422.17ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 41.8MB in the beginning and 91.0MB in the end (delta: -49.2MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2021-11-19 15:47:43,312 INFO L158 Benchmark]: TraceAbstraction took 69605.10ms. Allocated memory was 127.9MB in the beginning and 425.7MB in the end (delta: 297.8MB). Free memory was 90.0MB in the beginning and 243.8MB in the end (delta: -153.8MB). Peak memory consumption was 204.7MB. Max. memory is 16.1GB. [2021-11-19 15:47:43,312 INFO L158 Benchmark]: Witness Printer took 271.75ms. Allocated memory is still 425.7MB. Free memory was 243.8MB in the beginning and 182.5MB in the end (delta: 61.3MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2021-11-19 15:47:43,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 54.5MB. Free memory was 35.6MB in the beginning and 35.5MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1844.50ms. Allocated memory was 54.5MB in the beginning and 90.2MB in the end (delta: 35.7MB). Free memory was 26.7MB in the beginning and 35.6MB in the end (delta: -8.9MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 183.42ms. Allocated memory is still 90.2MB. Free memory was 35.6MB in the beginning and 48.1MB in the end (delta: -12.5MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 176.17ms. Allocated memory is still 90.2MB. Free memory was 48.1MB in the beginning and 42.2MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 10422.17ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 41.8MB in the beginning and 91.0MB in the end (delta: -49.2MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * TraceAbstraction took 69605.10ms. Allocated memory was 127.9MB in the beginning and 425.7MB in the end (delta: 297.8MB). Free memory was 90.0MB in the beginning and 243.8MB in the end (delta: -153.8MB). Peak memory consumption was 204.7MB. Max. memory is 16.1GB. * Witness Printer took 271.75ms. Allocated memory is still 425.7MB. Free memory was 243.8MB in the beginning and 182.5MB in the end (delta: 61.3MB). Peak memory consumption was 62.9MB. 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: 4049]: 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 15 procedures, 164 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.4s, OverallIterations: 20, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 18.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 15.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 2751 SdHoareTripleChecker+Valid, 15.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2662 mSDsluCounter, 18352 SdHoareTripleChecker+Invalid, 14.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13779 mSDsCounter, 333 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1155 IncrementalHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 333 mSolverCounterUnsat, 4573 mSDtfsCounter, 1155 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4205 GetRequests, 4103 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2127occurred in iteration=17, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 20 MinimizatonAttempts, 2241 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 81 LocationsWithAnnotation, 3447 PreInvPairs, 3551 NumberOfFragments, 1264 HoareAnnotationTreeSize, 3447 FomulaSimplifications, 204442 FormulaSimplificationTreeSizeReduction, 3.7s HoareSimplificationTime, 81 FomulaSimplificationsInter, 52407 FormulaSimplificationTreeSizeReductionInter, 11.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 8.2s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 2112 NumberOfCodeBlocks, 2112 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 4178 ConstructedInterpolants, 0 QuantifiedInterpolants, 7076 SizeOfPredicates, 87 NumberOfNonLiveVariables, 12157 ConjunctsInSsa, 193 ConjunctsInUnsatCore, 46 InterpolantComputations, 35 PerfectInterpolantSequences, 1286/1382 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: 4055]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3782]: Loop Invariant Derived loop invariant: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) || ((((!(error == 0bv32) && ldv_coherent_state == 0bv32) && !(\result == 0bv32)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) - InvariantResult [Line: 4072]: Loop Invariant Derived loop invariant: (((res_kbtab_probe_3 == 0bv32 && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 3512]: Loop Invariant Derived loop invariant: ((((((0bv32 == ~bvadd16(error, 12bv32) && ldv_coherent_state == 0bv32) && 0bv64 == \result) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) && 0bv64 == \result) || (((((0bv32 == ~bvadd16(error, 12bv32) && ldv_coherent_state == 0bv32) && 0bv64 == kbtab) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) && 0bv64 == kbtab)) || ((((res_kbtab_probe_3 == 0bv32 && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) - InvariantResult [Line: 3449]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 3465]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4181]: Loop Invariant Derived loop invariant: ldv_urb_state == 0bv32 - InvariantResult [Line: 4229]: Loop Invariant Derived loop invariant: (((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32 - InvariantResult [Line: 3525]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 4256]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3422]: Loop Invariant Derived loop invariant: (((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32 - InvariantResult [Line: 3793]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && !(error == 0bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 4097]: Loop Invariant Derived loop invariant: (ldv_coherent_state == 1bv32 || !(\old(ldv_coherent_state) == 1bv32)) || !(ldv_urb_state == 0bv32) - InvariantResult [Line: 3442]: Loop Invariant Derived loop invariant: ((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 3475]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 3793]: Loop Invariant Derived loop invariant: ((((!(0bv64 == arbitrary_memory) && !(error == 0bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 4093]: Loop Invariant Derived loop invariant: ((ldv_coherent_state == 0bv32 && !(0bv64 == ~bvadd16(addr, addr))) || !(\old(ldv_coherent_state) == 1bv32)) || !(ldv_urb_state == 0bv32) - InvariantResult [Line: 3875]: Loop Invariant Derived loop invariant: (((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 3994]: Loop Invariant Derived loop invariant: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) || (((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) - InvariantResult [Line: 4249]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3961]: Loop Invariant Derived loop invariant: ldv_urb_state == 0bv32 - InvariantResult [Line: 3980]: Loop Invariant Derived loop invariant: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) || (((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) - InvariantResult [Line: 4129]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 4232]: Loop Invariant Derived loop invariant: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) || (((((!(error == 0bv32) && ldv_coherent_state == 0bv32) && !(\result == 0bv32)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && !(res_kbtab_probe_3 == 0bv32)) && ldv_urb_state == 0bv32) - InvariantResult [Line: 4124]: Loop Invariant Derived loop invariant: ((((((((!(0bv64 == arbitrary_memory) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && 0bv64 == \result) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) && 0bv64 == \result) && ~bvsge32(ldv_coherent_state, 1bv32)) || (((((((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == arbitrary_memory)) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && !(0bv64 == \result)) && ~bvsge32(ldv_coherent_state, 1bv32)) - InvariantResult [Line: 4219]: Loop Invariant Derived loop invariant: ((!(error == 0bv32) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 3968]: Loop Invariant Derived loop invariant: ldv_coherent_state == 0bv32 && ldv_urb_state == 0bv32 - InvariantResult [Line: 4066]: Loop Invariant Derived loop invariant: (((((((0bv64 == \result && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 0bv32) && 0bv64 == arbitrary_memory) && 0bv64 == \result) && ldv_s_kbtab_driver_usb_driver == 0bv32) && 0bv64 == arbitrary_memory) && ldv_urb_state == 0bv32) || ((((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) - InvariantResult [Line: 4150]: Loop Invariant Derived loop invariant: (((!(0bv64 == ~bvadd16(urb, urb)) && ldv_urb_state == 0bv32) || !(ldv_coherent_state == 1bv32)) || !(\old(ldv_urb_state) == 1bv32)) || !(res_kbtab_probe_3 == 0bv32) - InvariantResult [Line: 3793]: Loop Invariant Derived loop invariant: ((!(error == 0bv32) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 3394]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4246]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 4154]: Loop Invariant Derived loop invariant: ((!(ldv_coherent_state == 1bv32) || !(\old(ldv_urb_state) == 1bv32)) || ldv_urb_state == 1bv32) || !(res_kbtab_probe_3 == 0bv32) - InvariantResult [Line: 4206]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4223]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 4235]: Loop Invariant Derived loop invariant: (res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 3506]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 3569]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 3979]: Loop Invariant Derived loop invariant: ldv_coherent_state == 0bv32 && ldv_urb_state == 0bv32 - InvariantResult [Line: 3911]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3997]: Loop Invariant Derived loop invariant: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) || (((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) RESULT: Ultimate proved your program to be correct! [2021-11-19 15:47:43,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d284f263-723b-47b4-93d4-06a2399ec1b0/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE