./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG --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 32bit --witnessprinter.graph.data.programhash b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG --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 32bit --witnessprinter.graph.data.programhash b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:22:07,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:22:07,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:22:07,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:22:07,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:22:07,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:22:07,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:22:07,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:22:07,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:22:07,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:22:07,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:22:07,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:22:07,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:22:08,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:22:08,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:22:08,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:22:08,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:22:08,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:22:08,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:22:08,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:22:08,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:22:08,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:22:08,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:22:08,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:22:08,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:22:08,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:22:08,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:22:08,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:22:08,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:22:08,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:22:08,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:22:08,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:22:08,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:22:08,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:22:08,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:22:08,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:22:08,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:22:08,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:22:08,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:22:08,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:22:08,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:22:08,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:22:08,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:22:08,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:22:08,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:22:08,085 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:22:08,085 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:22:08,086 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:22:08,086 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:22:08,086 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:22:08,087 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:22:08,087 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:22:08,093 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:22:08,094 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:22:08,094 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:22:08,094 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:22:08,094 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:22:08,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:22:08,095 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:22:08,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:22:08,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:22:08,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:22:08,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:22:08,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:22:08,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:22:08,097 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:22:08,097 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:22:08,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:22:08,098 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:22:08,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:22:08,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:22:08,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:22:08,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:22:08,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:22:08,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:22:08,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:22:08,099 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:22:08,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:22:08,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:22:08,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:22:08,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:22:08,100 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_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 [2021-10-29 05:22:08,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:22:08,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:22:08,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:22:08,421 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:22:08,422 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:22:08,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2021-10-29 05:22:08,492 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/data/e043838c3/ab67cbdf74634a3ca4ff13839daad72d/FLAGd2e65cf7f [2021-10-29 05:22:09,114 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:22:09,115 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2021-10-29 05:22:09,142 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/data/e043838c3/ab67cbdf74634a3ca4ff13839daad72d/FLAGd2e65cf7f [2021-10-29 05:22:09,293 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/data/e043838c3/ab67cbdf74634a3ca4ff13839daad72d [2021-10-29 05:22:09,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:22:09,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:22:09,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:22:09,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:22:09,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:22:09,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:22:09" (1/1) ... [2021-10-29 05:22:09,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81e2f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:09, skipping insertion in model container [2021-10-29 05:22:09,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:22:09" (1/1) ... [2021-10-29 05:22:09,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:22:09,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:22:09,609 WARN L228 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_c75815e5-9675-45d8-91ef-e9282d039cc0/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2021-10-29 05:22:11,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:22:11,098 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) [2021-10-29 05:22:11,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21addf34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:11, skipping insertion in model container [2021-10-29 05:22:11,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:22:11,099 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 05:22:11,102 INFO L168 Benchmark]: Toolchain (without parser) took 1803.70 ms. Allocated memory is still 119.5 MB. Free memory was 79.5 MB in the beginning and 67.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:11,103 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 119.5 MB. Free memory is still 101.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:22:11,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1799.03 ms. Allocated memory is still 119.5 MB. Free memory was 79.3 MB in the beginning and 67.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:11,106 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 119.5 MB. Free memory is still 101.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1799.03 ms. Allocated memory is still 119.5 MB. Free memory was 79.3 MB in the beginning and 67.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2975]: 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:22:13,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:22:13,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:22:13,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:22:13,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:22:13,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:22:13,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:22:13,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:22:13,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:22:13,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:22:13,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:22:13,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:22:13,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:22:13,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:22:13,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:22:13,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:22:13,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:22:13,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:22:13,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:22:13,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:22:13,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:22:13,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:22:13,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:22:13,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:22:13,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:22:13,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:22:13,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:22:13,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:22:13,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:22:13,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:22:13,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:22:13,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:22:13,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:22:13,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:22:13,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:22:13,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:22:13,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:22:13,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:22:13,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:22:13,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:22:13,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:22:13,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:22:13,509 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:22:13,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:22:13,511 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:22:13,511 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:22:13,511 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:22:13,511 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:22:13,511 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:22:13,512 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:22:13,512 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:22:13,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:22:13,513 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:22:13,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:22:13,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:22:13,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:22:13,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:22:13,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:22:13,514 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:22:13,514 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:22:13,515 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:22:13,515 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:22:13,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:22:13,515 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:22:13,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:22:13,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:22:13,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:22:13,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:22:13,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:22:13,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:22:13,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:22:13,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:22:13,517 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:22:13,517 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:22:13,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:22:13,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:22:13,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:22:13,518 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_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 [2021-10-29 05:22:13,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:22:13,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:22:13,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:22:13,879 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:22:13,880 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:22:13,881 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2021-10-29 05:22:13,941 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/data/672fb5ae0/ff1b85248b234b59a428689fe494920f/FLAG7223cbaca [2021-10-29 05:22:14,735 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:22:14,736 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2021-10-29 05:22:14,775 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/data/672fb5ae0/ff1b85248b234b59a428689fe494920f/FLAG7223cbaca [2021-10-29 05:22:14,820 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/data/672fb5ae0/ff1b85248b234b59a428689fe494920f [2021-10-29 05:22:14,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:22:14,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:22:14,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:22:14,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:22:14,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:22:14,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:22:14" (1/1) ... [2021-10-29 05:22:14,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb955a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:14, skipping insertion in model container [2021-10-29 05:22:14,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:22:14" (1/1) ... [2021-10-29 05:22:14,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:22:14,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:22:15,202 WARN L228 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_c75815e5-9675-45d8-91ef-e9282d039cc0/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2021-10-29 05:22:16,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:22:16,441 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 05:22:16,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:22:16,471 WARN L228 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_c75815e5-9675-45d8-91ef-e9282d039cc0/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2021-10-29 05:22:16,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:22:16,755 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:22:16,766 WARN L228 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_c75815e5-9675-45d8-91ef-e9282d039cc0/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2021-10-29 05:22:16,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:22:17,134 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:22:17,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:17 WrapperNode [2021-10-29 05:22:17,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:22:17,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:22:17,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:22:17,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:22:17,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:17" (1/1) ... [2021-10-29 05:22:17,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:17" (1/1) ... [2021-10-29 05:22:17,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:22:17,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:22:17,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:22:17,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:22:17,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:17" (1/1) ... [2021-10-29 05:22:17,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:17" (1/1) ... [2021-10-29 05:22:17,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:17" (1/1) ... [2021-10-29 05:22:17,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:17" (1/1) ... [2021-10-29 05:22:17,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:17" (1/1) ... [2021-10-29 05:22:17,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:17" (1/1) ... [2021-10-29 05:22:17,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:17" (1/1) ... [2021-10-29 05:22:17,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:22:17,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:22:17,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:22:17,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:22:17,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:17" (1/1) ... [2021-10-29 05:22:17,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:22:17,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:22:17,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:22:17,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:22:17,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:22:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-10-29 05:22:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:22:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-29 05:22:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 05:22:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-29 05:22:17,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:22:17,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:22:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-10-29 05:22:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:22:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-10-29 05:22:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-29 05:22:17,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:22:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 05:22:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-10-29 05:22:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-29 05:22:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-10-29 05:22:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:22:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-29 05:22:17,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-29 05:22:25,752 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:22:25,753 INFO L299 CfgBuilder]: Removed 575 assume(true) statements. [2021-10-29 05:22:25,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:22:25 BoogieIcfgContainer [2021-10-29 05:22:25,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:22:25,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:22:25,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:22:25,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:22:25,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:22:14" (1/3) ... [2021-10-29 05:22:25,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469eda37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:22:25, skipping insertion in model container [2021-10-29 05:22:25,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:22:17" (2/3) ... [2021-10-29 05:22:25,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469eda37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:22:25, skipping insertion in model container [2021-10-29 05:22:25,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:22:25" (3/3) ... [2021-10-29 05:22:25,766 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outb.i [2021-10-29 05:22:25,771 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:22:25,771 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2021-10-29 05:22:25,830 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:22:25,839 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 [2021-10-29 05:22:25,839 INFO L340 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2021-10-29 05:22:25,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 504 states, 464 states have (on average 1.4008620689655173) internal successors, (650), 503 states have internal predecessors, (650), 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) [2021-10-29 05:22:25,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:22:25,878 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:25,878 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:22:25,879 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-10-29 05:22:25,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:25,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1570735153, now seen corresponding path program 1 times [2021-10-29 05:22:25,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:25,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921570263] [2021-10-29 05:22:25,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:25,905 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:25,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:25,912 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:25,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:22:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:26,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:22:26,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:26,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:26,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:26,609 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:26,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921570263] [2021-10-29 05:22:26,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921570263] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:26,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:26,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:22:26,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582452643] [2021-10-29 05:22:26,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:22:26,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:26,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:22:26,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:22:26,633 INFO L87 Difference]: Start difference. First operand has 504 states, 464 states have (on average 1.4008620689655173) internal successors, (650), 503 states have internal predecessors, (650), 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-29 05:22:26,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:26,750 INFO L93 Difference]: Finished difference Result 1003 states and 1293 transitions. [2021-10-29 05:22:26,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:22:26,752 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) Word has length 11 [2021-10-29 05:22:26,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:26,782 INFO L225 Difference]: With dead ends: 1003 [2021-10-29 05:22:26,782 INFO L226 Difference]: Without dead ends: 491 [2021-10-29 05:22:26,787 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:22:26,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-10-29 05:22:26,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2021-10-29 05:22:26,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 452 states have (on average 1.2964601769911503) internal successors, (586), 490 states have internal predecessors, (586), 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) [2021-10-29 05:22:26,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 586 transitions. [2021-10-29 05:22:26,857 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 586 transitions. Word has length 11 [2021-10-29 05:22:26,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:26,858 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 586 transitions. [2021-10-29 05:22:26,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-29 05:22:26,858 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 586 transitions. [2021-10-29 05:22:26,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:22:26,859 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:26,859 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:22:26,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:27,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:27,077 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-10-29 05:22:27,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:27,078 INFO L85 PathProgramCache]: Analyzing trace with hash 857304725, now seen corresponding path program 1 times [2021-10-29 05:22:27,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:27,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78781165] [2021-10-29 05:22:27,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:27,080 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:27,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:27,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:27,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:22:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:27,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:22:27,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:27,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:27,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:27,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:27,740 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:27,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78781165] [2021-10-29 05:22:27,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [78781165] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:27,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:27,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:22:27,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956607526] [2021-10-29 05:22:27,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:22:27,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:27,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:22:27,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:22:27,744 INFO L87 Difference]: Start difference. First operand 491 states and 586 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-29 05:22:28,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:28,009 INFO L93 Difference]: Finished difference Result 1466 states and 1752 transitions. [2021-10-29 05:22:28,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:22:28,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) Word has length 11 [2021-10-29 05:22:28,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:28,017 INFO L225 Difference]: With dead ends: 1466 [2021-10-29 05:22:28,018 INFO L226 Difference]: Without dead ends: 980 [2021-10-29 05:22:28,021 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:22:28,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2021-10-29 05:22:28,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 495. [2021-10-29 05:22:28,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 456 states have (on average 1.293859649122807) internal successors, (590), 494 states have internal predecessors, (590), 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) [2021-10-29 05:22:28,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 590 transitions. [2021-10-29 05:22:28,054 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 590 transitions. Word has length 11 [2021-10-29 05:22:28,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:28,055 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 590 transitions. [2021-10-29 05:22:28,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-29 05:22:28,055 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 590 transitions. [2021-10-29 05:22:28,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 05:22:28,056 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:28,056 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:22:28,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:28,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:28,278 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-10-29 05:22:28,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:28,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1978982629, now seen corresponding path program 1 times [2021-10-29 05:22:28,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:28,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950392973] [2021-10-29 05:22:28,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:28,292 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:28,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:28,302 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:28,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:22:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:28,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:22:28,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:28,917 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:22:28,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:29,023 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:22:29,024 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:29,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950392973] [2021-10-29 05:22:29,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950392973] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:22:29,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1242138061] [2021-10-29 05:22:29,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:29,025 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:22:29,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:22:29,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:22:29,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-10-29 05:22:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:29,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:22:29,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:29,941 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:22:29,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:30,008 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:22:30,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1242138061] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:22:30,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182471898] [2021-10-29 05:22:30,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:30,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:22:30,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:22:30,012 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:22:30,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-29 05:22:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:30,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:22:30,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:30,445 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:22:30,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:30,501 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:22:30,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182471898] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:22:30,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 05:22:30,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2021-10-29 05:22:30,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962951048] [2021-10-29 05:22:30,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:22:30,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:30,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:22:30,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:22:30,504 INFO L87 Difference]: Start difference. First operand 495 states and 590 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2021-10-29 05:22:30,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:30,967 INFO L93 Difference]: Finished difference Result 990 states and 1183 transitions. [2021-10-29 05:22:30,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:22:30,968 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) Word has length 17 [2021-10-29 05:22:30,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:30,972 INFO L225 Difference]: With dead ends: 990 [2021-10-29 05:22:30,972 INFO L226 Difference]: Without dead ends: 503 [2021-10-29 05:22:30,973 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:22:30,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-10-29 05:22:30,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2021-10-29 05:22:31,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 464 states have (on average 1.2866379310344827) internal successors, (597), 502 states have internal predecessors, (597), 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) [2021-10-29 05:22:31,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 597 transitions. [2021-10-29 05:22:31,003 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 597 transitions. Word has length 17 [2021-10-29 05:22:31,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:31,003 INFO L470 AbstractCegarLoop]: Abstraction has 503 states and 597 transitions. [2021-10-29 05:22:31,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2021-10-29 05:22:31,004 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 597 transitions. [2021-10-29 05:22:31,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 05:22:31,004 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:31,005 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:22:31,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:31,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:31,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:31,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:22:31,621 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-10-29 05:22:31,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:31,622 INFO L85 PathProgramCache]: Analyzing trace with hash -200592605, now seen corresponding path program 2 times [2021-10-29 05:22:31,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:31,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854281567] [2021-10-29 05:22:31,623 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-29 05:22:31,623 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:31,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:31,624 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:31,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 05:22:39,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-29 05:22:39,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:22:39,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 05:22:39,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:40,118 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:22:40,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:40,438 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:22:40,438 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:40,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854281567] [2021-10-29 05:22:40,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854281567] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:22:40,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [100116226] [2021-10-29 05:22:40,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-29 05:22:40,439 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:22:40,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:22:40,441 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:22:40,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-29 05:23:47,094 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-29 05:23:47,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:23:47,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 05:23:47,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:23:47,496 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:23:47,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:23:47,619 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:23:47,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [100116226] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:23:47,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029498855] [2021-10-29 05:23:47,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-29 05:23:47,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:23:47,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:23:47,631 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:23:47,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-29 05:24:15,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-29 05:24:15,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:24:15,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 05:24:15,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:24:15,153 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:24:15,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:24:15,275 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:24:15,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029498855] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:24:15,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 05:24:15,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 16 [2021-10-29 05:24:15,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717185456] [2021-10-29 05:24:15,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-29 05:24:15,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:24:15,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-29 05:24:15,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-10-29 05:24:15,278 INFO L87 Difference]: Start difference. First operand 503 states and 597 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-10-29 05:24:16,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:24:16,162 INFO L93 Difference]: Finished difference Result 998 states and 1189 transitions. [2021-10-29 05:24:16,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 05:24:16,162 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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) Word has length 25 [2021-10-29 05:24:16,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:24:16,165 INFO L225 Difference]: With dead ends: 998 [2021-10-29 05:24:16,166 INFO L226 Difference]: Without dead ends: 511 [2021-10-29 05:24:16,167 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-10-29 05:24:16,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2021-10-29 05:24:16,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2021-10-29 05:24:16,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 472 states have (on average 1.2817796610169492) internal successors, (605), 510 states have internal predecessors, (605), 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) [2021-10-29 05:24:16,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 605 transitions. [2021-10-29 05:24:16,184 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 605 transitions. Word has length 25 [2021-10-29 05:24:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:24:16,185 INFO L470 AbstractCegarLoop]: Abstraction has 511 states and 605 transitions. [2021-10-29 05:24:16,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-10-29 05:24:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 605 transitions. [2021-10-29 05:24:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:24:16,186 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:24:16,187 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:24:16,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:24:16,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-29 05:24:16,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2021-10-29 05:24:16,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt [2021-10-29 05:24:16,801 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 36 more)] === [2021-10-29 05:24:16,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:24:16,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1490730795, now seen corresponding path program 3 times [2021-10-29 05:24:16,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:24:16,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238856033] [2021-10-29 05:24:16,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-29 05:24:16,803 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:24:16,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:24:16,804 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:24:16,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 05:24:28,281 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-10-29 05:24:28,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-29 05:24:28,281 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:24:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:24:41,929 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 05:24:41,929 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:24:41,930 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,932 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,932 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,932 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,933 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,933 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,933 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,933 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,934 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,934 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,934 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,934 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,935 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,935 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,935 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,935 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,935 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,936 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,936 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,936 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,936 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,937 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,937 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,937 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,937 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,938 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,938 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,938 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,938 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,939 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,939 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,939 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,939 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,940 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,940 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,940 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,940 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,940 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,941 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:41,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-10-29 05:24:42,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:24:42,156 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2021-10-29 05:24:42,159 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:24:42,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:24:42 BoogieIcfgContainer [2021-10-29 05:24:42,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:24:42,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:24:42,319 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:24:42,320 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:24:42,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:22:25" (3/4) ... [2021-10-29 05:24:42,323 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:24:42,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:24:42,325 INFO L168 Benchmark]: Toolchain (without parser) took 147493.98 ms. Allocated memory was 54.5 MB in the beginning and 211.8 MB in the end (delta: 157.3 MB). Free memory was 35.7 MB in the beginning and 67.0 MB in the end (delta: -31.3 MB). Peak memory consumption was 125.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:24:42,325 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 34.2 MB in the beginning and 34.2 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:24:42,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2301.60 ms. Allocated memory was 54.5 MB in the beginning and 88.1 MB in the end (delta: 33.6 MB). Free memory was 35.6 MB in the beginning and 43.0 MB in the end (delta: -7.4 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:24:42,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 265.75 ms. Allocated memory is still 88.1 MB. Free memory was 43.0 MB in the beginning and 48.7 MB in the end (delta: -5.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:24:42,328 INFO L168 Benchmark]: Boogie Preprocessor took 191.64 ms. Allocated memory is still 88.1 MB. Free memory was 48.7 MB in the beginning and 37.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:24:42,328 INFO L168 Benchmark]: RCFGBuilder took 8162.20 ms. Allocated memory was 88.1 MB in the beginning and 176.2 MB in the end (delta: 88.1 MB). Free memory was 37.5 MB in the beginning and 129.4 MB in the end (delta: -91.9 MB). Peak memory consumption was 96.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:24:42,329 INFO L168 Benchmark]: TraceAbstraction took 136558.91 ms. Allocated memory was 176.2 MB in the beginning and 211.8 MB in the end (delta: 35.7 MB). Free memory was 129.4 MB in the beginning and 67.0 MB in the end (delta: 62.4 MB). Peak memory consumption was 97.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:24:42,329 INFO L168 Benchmark]: Witness Printer took 4.19 ms. Allocated memory is still 211.8 MB. Free memory is still 67.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:24:42,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 34.2 MB in the beginning and 34.2 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2301.60 ms. Allocated memory was 54.5 MB in the beginning and 88.1 MB in the end (delta: 33.6 MB). Free memory was 35.6 MB in the beginning and 43.0 MB in the end (delta: -7.4 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 265.75 ms. Allocated memory is still 88.1 MB. Free memory was 43.0 MB in the beginning and 48.7 MB in the end (delta: -5.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 191.64 ms. Allocated memory is still 88.1 MB. Free memory was 48.7 MB in the beginning and 37.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8162.20 ms. Allocated memory was 88.1 MB in the beginning and 176.2 MB in the end (delta: 88.1 MB). Free memory was 37.5 MB in the beginning and 129.4 MB in the end (delta: -91.9 MB). Peak memory consumption was 96.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 136558.91 ms. Allocated memory was 176.2 MB in the beginning and 211.8 MB in the end (delta: 35.7 MB). Free memory was 129.4 MB in the beginning and 67.0 MB in the end (delta: 62.4 MB). Peak memory consumption was 97.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.19 ms. Allocated memory is still 211.8 MB. Free memory is still 67.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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 - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 1474. Possible FailurePath: [L20] int current_execution_context; [L31] int (* _ddv_module_init)(void); [L32] void (* _ddv_module_exit)(void); [L232] unsigned long jiffies; [L1474] char _ddv_module_author[] = "Fernando Fuganti "; [L1475] char _ddv_module_description[] = "MachZ ZF-Logic Watchdog driver"; [L1476] char _ddv_module_license[] = "GPL"; [L1478] static int nowayout = 0; [L1479] char _ddv_module_param_nowayout [] = "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"; [L1483-L1487] static struct watchdog_info zf_info = { .options = 0x8000 | 0x0100, .firmware_version = 1, .identity = "ZF-Logic watchdog", }; [L1488] static int action = 0; [L1489] char _ddv_module_param_action [] = "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI"; [L1491] static int zf_action = 0x0800; [L1492] static unsigned long zf_is_open; [L1493] static char zf_expect_close; [L1494] static spinlock_t zf_lock; [L1495] static spinlock_t zf_port_lock; [L1496] static struct timer_list zf_timer; [L1497] static unsigned long next_heartbeat = 0; [L1743-L1750] static const struct file_operations zf_fops = { .owner = ((struct module *) 0), .llseek = no_llseek, .write = zf_write, .ioctl = zf_ioctl, .open = zf_open, .release = zf_close, }; [L1752-L1756] static struct miscdevice zf_miscdev = { .minor = 130, .name = "watchdog", .fops = (struct file_operations *)&zf_fops, }; [L1763-L1765] static struct notifier_block zf_notifier = { .notifier_call = zf_notify_sys, }; [L1845] int (* _ddv_tmp_init)(void) = zf_init; [L1846] void (* _ddv_tmp_exit)(void) = zf_exit; [L1897] struct cdev fixed_cdev[1]; [L1898] int fixed_cdev_used = 0; [L1900] short number_cdev_registered = 0; [L1911] struct ddv_cdev cdev_registered[1]; [L2448] short number_genhd_registered = 0; [L2449] short number_fixed_genhd_used = 0; [L2460] struct gendisk fixed_gendisk[10]; [L2461] struct ddv_genhd genhd_registered[10]; [L2596] struct ddv_pci_driver registered_pci_driver; [L2607] struct registered_irq registered_irq[16]; [L2617] short number_tasklet_registered = 0; [L2624] struct ddv_tasklet tasklet_registered[1]; [L2634] short number_timer_registered = 0; [L2640] struct ddv_timer timer_registered[1]; [L2650] struct work_struct *shared_workqueue[10]; [L2660] spinlock_t kernel_lock; [L3346] request_queue_t fixed_request_queue[10]; [L3348] int number_request_queue_used = 0; [L3432] struct proc_dir_entry *proc_root_driver; [L3742] struct ddv_tty_driver global_tty_driver; [L3921] int ddv_ioport_request_start; [L3922] int ddv_ioport_request_len; VAL [={-1:7}, ={-1:8}, ={0:0}, ={0:0}, action=0, cdev_registered={49:0}, current_execution_context=0, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L1850] _ddv_module_init = zf_init [L1851] _ddv_module_exit = zf_exit [L2724] int err; [L2726] current_execution_context = 1 [L2664] int i; [L4153] lock->init = 1 [L4154] lock->locked = 0 VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] i = 0 VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] COND TRUE i < 10 [L2669] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2668] COND FALSE !(i < 10) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2672] i = 0 VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2672] COND TRUE i < 1 [L2673] tasklet_registered[i].tasklet = ((void *)0) [L2674] tasklet_registered[i].is_running = 0 VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2672] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L2672] COND FALSE !(i < 1) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L1776] int ret; [L4480] return 0; VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L12] COND TRUE !expression VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] [L12] reach_error() VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={49:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={1342177342:0}, fixed_cdev_used=0, fixed_gendisk={-1879048129:0}, fixed_request_queue={-805306244:0}, genhd_registered={1342177311:0}, global_tty_driver={-2013241344:0}, jiffies=0, kernel_lock={-738197398:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={1409286271:0}, registered_pci_driver={1342177535:0}, shared_workqueue={1610612799:0}, tasklet_registered={1879048255:0}, timer_registered={1073741853:0}, zf_action=2048, zf_expect_close=0, zf_fops={1879048238:0}, zf_info={1342177407:0}, zf_is_open={805306433:0}, zf_lock={268435517:0}, zf_miscdev={1879048383:0}, zf_notifier={1342177492:0}, zf_port_lock={3:0}, zf_timer={1610612828:0}] - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 504 locations, 39 error locations. Started 1 CEGAR loops. OverallTime: 136.3s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2343 SDtfs, 4061 SDslu, 5776 SDs, 0 SdLazy, 223 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=4, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 485 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 114.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 596 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3404 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 12/252 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 05:24:42,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c75815e5-9675-45d8-91ef-e9282d039cc0/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...