./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b4ab5f9a609d808b1cc730f70e246b6cee2b77e8055db2b71a14eb45eb69a8df --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:44:11,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:44:11,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:44:11,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:44:11,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:44:11,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:44:11,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:44:11,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:44:11,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:44:11,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:44:11,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:44:11,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:44:11,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:44:11,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:44:11,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:44:11,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:44:11,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:44:11,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:44:11,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:44:11,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:44:11,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:44:11,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:44:11,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:44:11,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:44:11,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:44:11,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:44:11,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:44:11,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:44:11,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:44:11,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:44:11,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:44:11,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:44:11,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:44:11,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:44:11,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:44:11,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:44:11,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:44:11,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:44:11,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:44:11,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:44:11,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:44:11,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:44:11,292 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:44:11,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:44:11,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:44:11,294 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:44:11,294 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:44:11,295 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:44:11,295 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:44:11,295 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:44:11,296 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:44:11,296 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:44:11,296 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:44:11,296 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:44:11,297 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:44:11,297 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:44:11,297 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:44:11,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:44:11,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:44:11,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:44:11,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:44:11,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:44:11,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:44:11,300 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:44:11,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:44:11,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:44:11,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:44:11,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:44:11,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:44:11,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:44:11,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:44:11,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:44:11,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:44:11,303 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:44:11,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:44:11,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:44:11,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:44:11,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:44:11,304 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_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4ab5f9a609d808b1cc730f70e246b6cee2b77e8055db2b71a14eb45eb69a8df [2021-11-07 01:44:11,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:44:11,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:44:11,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:44:11,729 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:44:11,730 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:44:11,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2021-11-07 01:44:11,825 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/data/c0c2d2960/daeb61c522e343f38390165fc12a1e00/FLAGbee97c166 [2021-11-07 01:44:12,831 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:44:12,833 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2021-11-07 01:44:12,891 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/data/c0c2d2960/daeb61c522e343f38390165fc12a1e00/FLAGbee97c166 [2021-11-07 01:44:13,272 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/data/c0c2d2960/daeb61c522e343f38390165fc12a1e00 [2021-11-07 01:44:13,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:44:13,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:44:13,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:44:13,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:44:13,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:44:13,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:44:13" (1/1) ... [2021-11-07 01:44:13,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58db17f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:13, skipping insertion in model container [2021-11-07 01:44:13,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:44:13" (1/1) ... [2021-11-07 01:44:13,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:44:13,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:44:14,362 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:44:14,437 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:44:14,455 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:44:14,560 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:44:14,580 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:44:14,598 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:44:14,705 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:44:14,715 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:44:14,738 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:44:14,866 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_45259b6b-6495-46d3-af92-0f161628ac8d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i[139464,139477] [2021-11-07 01:44:15,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:44:15,119 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:44:15,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f6ba220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:15, skipping insertion in model container [2021-11-07 01:44:15,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:44:15,121 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:44:15,125 INFO L168 Benchmark]: Toolchain (without parser) took 1842.56 ms. Allocated memory was 107.0 MB in the beginning and 140.5 MB in the end (delta: 33.6 MB). Free memory was 66.7 MB in the beginning and 72.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:44:15,126 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 107.0 MB. Free memory is still 59.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:44:15,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1839.11 ms. Allocated memory was 107.0 MB in the beginning and 140.5 MB in the end (delta: 33.6 MB). Free memory was 66.7 MB in the beginning and 72.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:44:15,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 107.0 MB. Free memory is still 59.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1839.11 ms. Allocated memory was 107.0 MB in the beginning and 140.5 MB in the end (delta: 33.6 MB). Free memory was 66.7 MB in the beginning and 72.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2279]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b4ab5f9a609d808b1cc730f70e246b6cee2b77e8055db2b71a14eb45eb69a8df --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:44:18,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:44:18,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:44:18,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:44:18,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:44:18,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:44:18,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:44:18,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:44:18,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:44:18,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:44:18,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:44:18,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:44:18,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:44:18,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:44:18,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:44:18,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:44:18,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:44:18,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:44:18,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:44:18,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:44:18,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:44:18,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:44:18,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:44:18,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:44:18,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:44:18,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:44:18,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:44:18,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:44:18,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:44:18,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:44:18,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:44:18,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:44:18,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:44:18,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:44:18,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:44:18,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:44:18,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:44:18,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:44:18,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:44:18,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:44:18,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:44:18,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:44:18,351 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:44:18,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:44:18,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:44:18,353 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:44:18,353 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:44:18,354 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:44:18,354 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:44:18,354 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:44:18,354 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:44:18,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:44:18,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:44:18,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:44:18,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:44:18,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:44:18,359 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:44:18,359 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:44:18,359 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:44:18,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:44:18,360 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:44:18,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:44:18,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:44:18,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:44:18,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:44:18,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:44:18,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:44:18,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:44:18,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:44:18,362 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:44:18,362 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:44:18,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:44:18,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:44:18,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:44:18,363 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_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4ab5f9a609d808b1cc730f70e246b6cee2b77e8055db2b71a14eb45eb69a8df [2021-11-07 01:44:18,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:44:18,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:44:18,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:44:18,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:44:18,901 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:44:18,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2021-11-07 01:44:19,006 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/data/38f861176/e3870488d840467b90b8953e8aadcb4e/FLAG374bd497c [2021-11-07 01:44:20,034 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:44:20,035 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2021-11-07 01:44:20,086 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/data/38f861176/e3870488d840467b90b8953e8aadcb4e/FLAG374bd497c [2021-11-07 01:44:20,480 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/data/38f861176/e3870488d840467b90b8953e8aadcb4e [2021-11-07 01:44:20,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:44:20,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:44:20,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:44:20,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:44:20,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:44:20,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:44:20" (1/1) ... [2021-11-07 01:44:20,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9c6a4c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:20, skipping insertion in model container [2021-11-07 01:44:20,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:44:20" (1/1) ... [2021-11-07 01:44:20,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:44:20,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:44:22,208 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_45259b6b-6495-46d3-af92-0f161628ac8d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i[139464,139477] [2021-11-07 01:44:22,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:44:22,450 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:44:22,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:44:22,838 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_45259b6b-6495-46d3-af92-0f161628ac8d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i[139464,139477] [2021-11-07 01:44:22,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:44:22,905 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:44:23,178 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_45259b6b-6495-46d3-af92-0f161628ac8d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i[139464,139477] [2021-11-07 01:44:23,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:44:23,456 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:44:23,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:23 WrapperNode [2021-11-07 01:44:23,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:44:23,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:44:23,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:44:23,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:44:23,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:23" (1/1) ... [2021-11-07 01:44:23,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:23" (1/1) ... [2021-11-07 01:44:24,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:44:24,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:44:24,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:44:24,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:44:24,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:23" (1/1) ... [2021-11-07 01:44:24,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:23" (1/1) ... [2021-11-07 01:44:24,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:23" (1/1) ... [2021-11-07 01:44:24,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:23" (1/1) ... [2021-11-07 01:44:25,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:23" (1/1) ... [2021-11-07 01:44:25,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:23" (1/1) ... [2021-11-07 01:44:25,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:23" (1/1) ... [2021-11-07 01:44:25,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:44:25,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:44:25,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:44:25,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:44:25,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:23" (1/1) ... [2021-11-07 01:44:25,537 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:44:25,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:44:25,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:44:25,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:44:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:44:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:44:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:44:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:44:25,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:44:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:44:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:44:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:44:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:44:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:44:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:44:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:44:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:44:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:44:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 01:44:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:44:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:44:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:44:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:44:25,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:45:22,443 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:45:22,444 INFO L299 CfgBuilder]: Removed 2924 assume(true) statements. [2021-11-07 01:45:22,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:45:22 BoogieIcfgContainer [2021-11-07 01:45:22,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:45:22,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:45:22,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:45:22,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:45:22,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:44:20" (1/3) ... [2021-11-07 01:45:22,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e8579e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:45:22, skipping insertion in model container [2021-11-07 01:45:22,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:44:23" (2/3) ... [2021-11-07 01:45:22,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e8579e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:45:22, skipping insertion in model container [2021-11-07 01:45:22,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:45:22" (3/3) ... [2021-11-07 01:45:22,461 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2021-11-07 01:45:22,468 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:45:22,469 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 112 error locations. [2021-11-07 01:45:22,553 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:45:22,561 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:45:22,562 INFO L340 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2021-11-07 01:45:22,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 3223 states, 3110 states have (on average 1.405144694533762) internal successors, (4370), 3222 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:22,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:45:22,680 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:45:22,681 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:45:22,682 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 01:45:22,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:45:22,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1794240842, now seen corresponding path program 1 times [2021-11-07 01:45:22,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:45:22,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195428514] [2021-11-07 01:45:22,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:45:22,719 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:45:22,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:45:22,726 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:45:22,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:45:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:45:29,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 2024 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:45:29,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:29,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:45:29,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:45:29,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:45:29,293 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:45:29,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195428514] [2021-11-07 01:45:29,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195428514] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:45:29,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:45:29,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:45:29,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386382041] [2021-11-07 01:45:29,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:45:29,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:45:29,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:45:29,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:45:29,330 INFO L87 Difference]: Start difference. First operand has 3223 states, 3110 states have (on average 1.405144694533762) internal successors, (4370), 3222 states have internal predecessors, (4370), 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 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:30,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:45:30,421 INFO L93 Difference]: Finished difference Result 9604 states and 13027 transitions. [2021-11-07 01:45:30,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:45:30,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-11-07 01:45:30,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:45:30,506 INFO L225 Difference]: With dead ends: 9604 [2021-11-07 01:45:30,507 INFO L226 Difference]: Without dead ends: 6376 [2021-11-07 01:45:30,524 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:45:30,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6376 states. [2021-11-07 01:45:30,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6376 to 6151. [2021-11-07 01:45:30,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6151 states, 6039 states have (on average 1.3591654247391953) internal successors, (8208), 6150 states have internal predecessors, (8208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:30,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6151 states to 6151 states and 8208 transitions. [2021-11-07 01:45:30,912 INFO L78 Accepts]: Start accepts. Automaton has 6151 states and 8208 transitions. Word has length 15 [2021-11-07 01:45:30,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:45:30,913 INFO L470 AbstractCegarLoop]: Abstraction has 6151 states and 8208 transitions. [2021-11-07 01:45:30,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 6151 states and 8208 transitions. [2021-11-07 01:45:30,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 01:45:30,923 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:45:30,923 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:45:30,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:45:31,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:45:31,125 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 01:45:31,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:45:31,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1247788700, now seen corresponding path program 1 times [2021-11-07 01:45:31,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:45:31,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386388729] [2021-11-07 01:45:31,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:45:31,136 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:45:31,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:45:31,138 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:45:31,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:45:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:45:37,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 2026 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:45:37,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:37,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:45:37,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:45:37,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:45:37,869 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:45:37,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386388729] [2021-11-07 01:45:37,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386388729] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:45:37,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:45:37,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:45:37,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76603044] [2021-11-07 01:45:37,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:45:37,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:45:37,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:45:37,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:45:37,875 INFO L87 Difference]: Start difference. First operand 6151 states and 8208 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:38,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:45:38,818 INFO L93 Difference]: Finished difference Result 18331 states and 24468 transitions. [2021-11-07 01:45:38,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:45:38,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2021-11-07 01:45:38,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:45:38,912 INFO L225 Difference]: With dead ends: 18331 [2021-11-07 01:45:38,921 INFO L226 Difference]: Without dead ends: 12183 [2021-11-07 01:45:38,941 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:45:38,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12183 states. [2021-11-07 01:45:39,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12183 to 11958. [2021-11-07 01:45:39,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11958 states, 11846 states have (on average 1.3627384771230795) internal successors, (16143), 11957 states have internal predecessors, (16143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:39,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11958 states to 11958 states and 16143 transitions. [2021-11-07 01:45:39,504 INFO L78 Accepts]: Start accepts. Automaton has 11958 states and 16143 transitions. Word has length 16 [2021-11-07 01:45:39,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:45:39,505 INFO L470 AbstractCegarLoop]: Abstraction has 11958 states and 16143 transitions. [2021-11-07 01:45:39,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:39,505 INFO L276 IsEmpty]: Start isEmpty. Operand 11958 states and 16143 transitions. [2021-11-07 01:45:39,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 01:45:39,509 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:45:39,509 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:45:39,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:45:39,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:45:39,723 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 01:45:39,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:45:39,724 INFO L85 PathProgramCache]: Analyzing trace with hash -348717799, now seen corresponding path program 1 times [2021-11-07 01:45:39,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:45:39,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277067962] [2021-11-07 01:45:39,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:45:39,740 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:45:39,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:45:39,742 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:45:39,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:45:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:45:46,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 2028 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:45:46,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:46,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:45:46,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:45:46,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:45:46,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:45:46,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277067962] [2021-11-07 01:45:46,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277067962] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:45:46,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:45:46,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:45:46,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966861148] [2021-11-07 01:45:46,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:45:46,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:45:46,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:45:46,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:45:46,328 INFO L87 Difference]: Start difference. First operand 11958 states and 16143 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:47,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:45:47,740 INFO L93 Difference]: Finished difference Result 35644 states and 48133 transitions. [2021-11-07 01:45:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:45:47,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 [2021-11-07 01:45:47,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:45:47,883 INFO L225 Difference]: With dead ends: 35644 [2021-11-07 01:45:47,883 INFO L226 Difference]: Without dead ends: 23689 [2021-11-07 01:45:47,911 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:45:47,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23689 states. [2021-11-07 01:45:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23689 to 23464. [2021-11-07 01:45:48,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23464 states, 23352 states have (on average 1.3648081534772183) internal successors, (31871), 23463 states have internal predecessors, (31871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:48,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23464 states to 23464 states and 31871 transitions. [2021-11-07 01:45:48,913 INFO L78 Accepts]: Start accepts. Automaton has 23464 states and 31871 transitions. Word has length 17 [2021-11-07 01:45:48,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:45:48,914 INFO L470 AbstractCegarLoop]: Abstraction has 23464 states and 31871 transitions. [2021-11-07 01:45:48,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:48,915 INFO L276 IsEmpty]: Start isEmpty. Operand 23464 states and 31871 transitions. [2021-11-07 01:45:48,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:45:48,917 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:45:48,917 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:45:48,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:45:49,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:45:49,143 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 01:45:49,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:45:49,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1185636838, now seen corresponding path program 1 times [2021-11-07 01:45:49,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:45:49,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436385880] [2021-11-07 01:45:49,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:45:49,154 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:45:49,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:45:49,155 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:45:49,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:45:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:45:55,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 2036 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:45:55,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:56,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:45:56,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:45:56,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:45:56,182 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:45:56,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436385880] [2021-11-07 01:45:56,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436385880] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:45:56,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:45:56,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:45:56,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560846473] [2021-11-07 01:45:56,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:45:56,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:45:56,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:45:56,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:45:56,186 INFO L87 Difference]: Start difference. First operand 23464 states and 31871 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:45:57,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:45:57,992 INFO L93 Difference]: Finished difference Result 69846 states and 94861 transitions. [2021-11-07 01:45:57,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:45:57,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-11-07 01:45:57,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:45:58,169 INFO L225 Difference]: With dead ends: 69846 [2021-11-07 01:45:58,170 INFO L226 Difference]: Without dead ends: 46385 [2021-11-07 01:45:58,226 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:45:58,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46385 states. [2021-11-07 01:46:00,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46385 to 46160. [2021-11-07 01:46:00,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46160 states, 46048 states have (on average 1.3652493050729673) internal successors, (62867), 46159 states have internal predecessors, (62867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:00,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46160 states to 46160 states and 62867 transitions. [2021-11-07 01:46:00,281 INFO L78 Accepts]: Start accepts. Automaton has 46160 states and 62867 transitions. Word has length 18 [2021-11-07 01:46:00,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:00,281 INFO L470 AbstractCegarLoop]: Abstraction has 46160 states and 62867 transitions. [2021-11-07 01:46:00,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:00,282 INFO L276 IsEmpty]: Start isEmpty. Operand 46160 states and 62867 transitions. [2021-11-07 01:46:00,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 01:46:00,283 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:00,284 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:46:00,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:00,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:46:00,499 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 01:46:00,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:00,499 INFO L85 PathProgramCache]: Analyzing trace with hash -563917397, now seen corresponding path program 1 times [2021-11-07 01:46:00,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:00,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591107948] [2021-11-07 01:46:00,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:00,512 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:00,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:00,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:00,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:46:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:06,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 2032 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:46:06,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:06,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:06,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:06,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:06,600 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:06,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591107948] [2021-11-07 01:46:06,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591107948] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:06,601 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:46:06,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:46:06,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577076325] [2021-11-07 01:46:06,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:46:06,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:06,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:46:06,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:46:06,603 INFO L87 Difference]: Start difference. First operand 46160 states and 62867 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:08,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:08,891 INFO L93 Difference]: Finished difference Result 137574 states and 187409 transitions. [2021-11-07 01:46:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:46:08,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-11-07 01:46:08,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:09,397 INFO L225 Difference]: With dead ends: 137574 [2021-11-07 01:46:09,397 INFO L226 Difference]: Without dead ends: 91417 [2021-11-07 01:46:09,480 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:46:09,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91417 states. [2021-11-07 01:46:12,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91417 to 91192. [2021-11-07 01:46:12,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91192 states, 91080 states have (on average 1.3659530083443128) internal successors, (124411), 91191 states have internal predecessors, (124411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:13,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91192 states to 91192 states and 124411 transitions. [2021-11-07 01:46:13,519 INFO L78 Accepts]: Start accepts. Automaton has 91192 states and 124411 transitions. Word has length 19 [2021-11-07 01:46:13,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:13,519 INFO L470 AbstractCegarLoop]: Abstraction has 91192 states and 124411 transitions. [2021-11-07 01:46:13,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:13,520 INFO L276 IsEmpty]: Start isEmpty. Operand 91192 states and 124411 transitions. [2021-11-07 01:46:13,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 01:46:13,521 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:13,521 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:46:13,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:13,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:46:13,722 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 01:46:13,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:13,722 INFO L85 PathProgramCache]: Analyzing trace with hash -677031331, now seen corresponding path program 1 times [2021-11-07 01:46:13,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:13,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316718412] [2021-11-07 01:46:13,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:13,726 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:13,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:13,727 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:13,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:46:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:19,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 2054 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:46:19,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:19,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:19,578 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:19,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316718412] [2021-11-07 01:46:19,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316718412] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:19,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:46:19,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:46:19,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810471518] [2021-11-07 01:46:19,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:46:19,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:19,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:46:19,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:46:19,581 INFO L87 Difference]: Start difference. First operand 91192 states and 124411 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:24,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:24,661 INFO L93 Difference]: Finished difference Result 268086 states and 365637 transitions. [2021-11-07 01:46:24,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:46:24,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-11-07 01:46:24,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:25,432 INFO L225 Difference]: With dead ends: 268086 [2021-11-07 01:46:25,432 INFO L226 Difference]: Without dead ends: 176897 [2021-11-07 01:46:25,705 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:46:25,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176897 states. [2021-11-07 01:46:31,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176897 to 176680. [2021-11-07 01:46:31,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176680 states, 176568 states have (on average 1.3653833084137557) internal successors, (241083), 176679 states have internal predecessors, (241083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:32,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176680 states to 176680 states and 241083 transitions. [2021-11-07 01:46:32,184 INFO L78 Accepts]: Start accepts. Automaton has 176680 states and 241083 transitions. Word has length 20 [2021-11-07 01:46:32,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:32,185 INFO L470 AbstractCegarLoop]: Abstraction has 176680 states and 241083 transitions. [2021-11-07 01:46:32,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:32,185 INFO L276 IsEmpty]: Start isEmpty. Operand 176680 states and 241083 transitions. [2021-11-07 01:46:32,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:46:32,186 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:32,186 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:46:32,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 01:46:32,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:46:32,399 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-07 01:46:32,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:32,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1299924542, now seen corresponding path program 1 times [2021-11-07 01:46:32,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:32,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492345232] [2021-11-07 01:46:32,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:32,403 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:32,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:32,404 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:32,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45259b6b-6495-46d3-af92-0f161628ac8d/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:46:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:38,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 2056 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:46:38,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:38,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:38,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:38,697 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:38,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [492345232] [2021-11-07 01:46:38,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [492345232] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:38,697 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:46:38,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:46:38,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761423579] [2021-11-07 01:46:38,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:46:38,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:38,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:46:38,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:46:38,700 INFO L87 Difference]: Start difference. First operand 176680 states and 241083 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:49,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:49,614 INFO L93 Difference]: Finished difference Result 519078 states and 708069 transitions. [2021-11-07 01:46:49,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:46:49,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-11-07 01:46:49,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:50,511 INFO L225 Difference]: With dead ends: 519078 [2021-11-07 01:46:50,511 INFO L226 Difference]: Without dead ends: 342401 [2021-11-07 01:46:50,881 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:46:51,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342401 states.