./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.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_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/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_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/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_523e5424-4206-4bfa-953c-57866b030aa2/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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:22:01,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:22:01,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:22:01,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:22:01,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:22:01,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:22:01,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:22:01,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:22:01,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:22:01,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:22:01,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:22:01,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:22:01,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:22:01,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:22:01,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:22:01,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:22:01,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:22:01,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:22:01,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:22:01,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:22:01,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:22:01,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:22:01,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:22:01,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:22:01,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:22:01,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:22:01,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:22:01,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:22:01,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:22:01,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:22:01,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:22:01,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:22:01,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:22:01,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:22:01,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:22:01,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:22:01,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:22:01,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:22:01,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:22:01,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:22:01,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:22:01,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:22:01,213 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:22:01,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:22:01,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:22:01,214 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:22:01,214 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:22:01,215 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:22:01,215 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:22:01,215 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:22:01,215 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:22:01,216 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:22:01,216 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:22:01,216 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:22:01,216 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:22:01,217 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:22:01,217 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:22:01,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:22:01,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:22:01,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:22:01,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:22:01,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:22:01,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:22:01,219 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:22:01,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:22:01,219 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:22:01,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:22:01,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:22:01,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:22:01,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:22:01,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:22:01,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:22:01,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:22:01,221 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:22:01,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:22:01,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:22:01,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:22:01,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:22:01,222 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_523e5424-4206-4bfa-953c-57866b030aa2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2021-11-07 01:22:01,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:22:01,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:22:01,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:22:01,540 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:22:01,541 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:22:01,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-07 01:22:01,610 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/data/0153e4bbb/88edcaf3f5844f5085e6d820b689a10a/FLAGc0584897e [2021-11-07 01:22:02,573 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:22:02,574 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-07 01:22:02,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/data/0153e4bbb/88edcaf3f5844f5085e6d820b689a10a/FLAGc0584897e [2021-11-07 01:22:02,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/data/0153e4bbb/88edcaf3f5844f5085e6d820b689a10a [2021-11-07 01:22:02,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:22:02,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:22:02,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:22:02,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:22:02,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:22:02,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:22:02" (1/1) ... [2021-11-07 01:22:02,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38f02e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:02, skipping insertion in model container [2021-11-07 01:22:02,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:22:02" (1/1) ... [2021-11-07 01:22:02,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:22:03,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:22:06,638 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-07 01:22:06,646 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-07 01:22:06,647 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-07 01:22:06,648 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-07 01:22:06,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:22:06,731 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 01:22:06,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4aa2ba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:06, skipping insertion in model container [2021-11-07 01:22:06,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:22:06,733 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:22:06,735 INFO L168 Benchmark]: Toolchain (without parser) took 3787.98 ms. Allocated memory was 117.4 MB in the beginning and 176.2 MB in the end (delta: 58.7 MB). Free memory was 62.9 MB in the beginning and 77.4 MB in the end (delta: -14.5 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:22:06,737 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 117.4 MB. Free memory was 94.2 MB in the beginning and 94.1 MB in the end (delta: 78.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:22:06,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3779.35 ms. Allocated memory was 117.4 MB in the beginning and 176.2 MB in the end (delta: 58.7 MB). Free memory was 62.7 MB in the beginning and 77.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:22:06,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 117.4 MB. Free memory was 94.2 MB in the beginning and 94.1 MB in the end (delta: 78.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3779.35 ms. Allocated memory was 117.4 MB in the beginning and 176.2 MB in the end (delta: 58.7 MB). Free memory was 62.7 MB in the beginning and 77.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6977]: 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_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/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_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/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_523e5424-4206-4bfa-953c-57866b030aa2/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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:22:09,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:22:09,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:22:09,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:22:09,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:22:09,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:22:09,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:22:09,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:22:09,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:22:09,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:22:09,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:22:09,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:22:09,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:22:09,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:22:09,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:22:09,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:22:09,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:22:09,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:22:09,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:22:09,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:22:09,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:22:09,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:22:09,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:22:09,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:22:09,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:22:09,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:22:09,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:22:09,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:22:09,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:22:09,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:22:09,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:22:09,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:22:09,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:22:09,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:22:09,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:22:09,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:22:09,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:22:09,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:22:09,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:22:09,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:22:09,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:22:09,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:22:09,346 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:22:09,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:22:09,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:22:09,347 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:22:09,348 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:22:09,348 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:22:09,348 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:22:09,349 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:22:09,349 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:22:09,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:22:09,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:22:09,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:22:09,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:22:09,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:22:09,351 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:22:09,352 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:22:09,352 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:22:09,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:22:09,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:22:09,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:22:09,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:22:09,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:22:09,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:22:09,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:22:09,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:22:09,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:22:09,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:22:09,355 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:22:09,355 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:22:09,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:22:09,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:22:09,356 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:22:09,357 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_523e5424-4206-4bfa-953c-57866b030aa2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2021-11-07 01:22:09,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:22:09,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:22:09,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:22:09,836 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:22:09,841 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:22:09,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-07 01:22:09,936 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/data/c3837ef43/d97b5409a84a4078960a9fb90c8b79aa/FLAG4cc7e5c9a [2021-11-07 01:22:11,074 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:22:11,076 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-07 01:22:11,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/data/c3837ef43/d97b5409a84a4078960a9fb90c8b79aa/FLAG4cc7e5c9a [2021-11-07 01:22:11,395 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/data/c3837ef43/d97b5409a84a4078960a9fb90c8b79aa [2021-11-07 01:22:11,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:22:11,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:22:11,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:22:11,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:22:11,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:22:11,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:22:11" (1/1) ... [2021-11-07 01:22:11,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19962fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:11, skipping insertion in model container [2021-11-07 01:22:11,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:22:11" (1/1) ... [2021-11-07 01:22:11,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:22:11,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:22:15,029 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-07 01:22:15,032 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-07 01:22:15,033 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-07 01:22:15,034 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-07 01:22:15,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:22:15,091 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:22:15,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:22:15,606 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-07 01:22:15,607 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-07 01:22:15,607 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-07 01:22:15,608 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-07 01:22:15,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:22:15,647 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:22:16,090 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-07 01:22:16,091 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-07 01:22:16,091 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-07 01:22:16,093 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_523e5424-4206-4bfa-953c-57866b030aa2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-07 01:22:16,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:22:16,303 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:22:16,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:16 WrapperNode [2021-11-07 01:22:16,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:22:16,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:22:16,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:22:16,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:22:16,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:16" (1/1) ... [2021-11-07 01:22:16,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:16" (1/1) ... [2021-11-07 01:22:17,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:22:17,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:22:17,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:22:17,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:22:17,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:16" (1/1) ... [2021-11-07 01:22:17,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:16" (1/1) ... [2021-11-07 01:22:17,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:16" (1/1) ... [2021-11-07 01:22:17,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:16" (1/1) ... [2021-11-07 01:22:18,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:16" (1/1) ... [2021-11-07 01:22:18,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:16" (1/1) ... [2021-11-07 01:22:18,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:16" (1/1) ... [2021-11-07 01:22:18,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:22:18,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:22:18,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:22:18,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:22:18,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:16" (1/1) ... [2021-11-07 01:22:18,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:22:18,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:22:18,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:22:18,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:22:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:22:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:22:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:22:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:22:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:22:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:22:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 01:22:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:22:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:22:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:22:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:22:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:22:18,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:22:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:22:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:22:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:22:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:22:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:22:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:22:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:22:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:22:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:22:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:22:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:22:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:22:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:22:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:22:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:22:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:22:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:24:48,127 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0bv32; [2021-11-07 01:24:48,128 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0bv32; [2021-11-07 01:24:48,128 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 01:24:48,129 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-07 01:24:48,130 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 01:24:48,131 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-07 01:24:48,132 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 01:24:48,194 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:24:48,194 INFO L299 CfgBuilder]: Removed 5799 assume(true) statements. [2021-11-07 01:24:48,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:24:48 BoogieIcfgContainer [2021-11-07 01:24:48,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:24:48,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:24:48,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:24:48,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:24:48,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:22:11" (1/3) ... [2021-11-07 01:24:48,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686687c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:24:48, skipping insertion in model container [2021-11-07 01:24:48,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:16" (2/3) ... [2021-11-07 01:24:48,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686687c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:24:48, skipping insertion in model container [2021-11-07 01:24:48,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:24:48" (3/3) ... [2021-11-07 01:24:48,232 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-07 01:24:48,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:24:48,240 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2021-11-07 01:24:48,331 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:24:48,342 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 01:24:48,345 INFO L340 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2021-11-07 01:24:48,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 5442 states, 5381 states have (on average 1.3413863594127486) internal successors, (7218), 5441 states have internal predecessors, (7218), 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 01:24:48,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 01:24:48,478 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:48,479 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:24:48,480 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:24:48,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:48,487 INFO L85 PathProgramCache]: Analyzing trace with hash -2097704285, now seen corresponding path program 1 times [2021-11-07 01:24:48,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:48,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071681034] [2021-11-07 01:24:48,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:48,522 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:48,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:48,526 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:48,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:24:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:59,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 1905 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:24:59,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:59,958 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 01:24:59,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:00,200 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 01:25:00,201 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:00,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071681034] [2021-11-07 01:25:00,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071681034] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:00,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:00,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:25:00,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574459151] [2021-11-07 01:25:00,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:25:00,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:00,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:25:00,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:25:00,246 INFO L87 Difference]: Start difference. First operand has 5442 states, 5381 states have (on average 1.3413863594127486) internal successors, (7218), 5441 states have internal predecessors, (7218), 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 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 01:25:04,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:04,152 INFO L93 Difference]: Finished difference Result 20555 states and 27264 transitions. [2021-11-07 01:25:04,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:25:04,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 50 [2021-11-07 01:25:04,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:04,286 INFO L225 Difference]: With dead ends: 20555 [2021-11-07 01:25:04,286 INFO L226 Difference]: Without dead ends: 14766 [2021-11-07 01:25:04,319 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:25:04,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14766 states. [2021-11-07 01:25:04,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14766 to 12052. [2021-11-07 01:25:04,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12052 states, 11991 states have (on average 1.2943874572596115) internal successors, (15521), 12051 states have internal predecessors, (15521), 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 01:25:04,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12052 states to 12052 states and 15521 transitions. [2021-11-07 01:25:05,000 INFO L78 Accepts]: Start accepts. Automaton has 12052 states and 15521 transitions. Word has length 50 [2021-11-07 01:25:05,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:05,002 INFO L470 AbstractCegarLoop]: Abstraction has 12052 states and 15521 transitions. [2021-11-07 01:25:05,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 01:25:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 12052 states and 15521 transitions. [2021-11-07 01:25:05,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 01:25:05,012 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:05,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:05,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:05,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:05,216 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:25:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:05,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1423488389, now seen corresponding path program 1 times [2021-11-07 01:25:05,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:05,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864064779] [2021-11-07 01:25:05,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:05,226 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:05,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:05,230 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:05,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:25:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:15,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1903 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:25:15,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:15,426 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 01:25:15,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:15,643 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 01:25:15,643 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:15,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864064779] [2021-11-07 01:25:15,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864064779] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:15,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:15,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:25:15,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613246071] [2021-11-07 01:25:15,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:25:15,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:15,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:25:15,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:25:15,648 INFO L87 Difference]: Start difference. First operand 12052 states and 15521 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 01:25:19,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:19,502 INFO L93 Difference]: Finished difference Result 47180 states and 60917 transitions. [2021-11-07 01:25:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:25:19,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 52 [2021-11-07 01:25:19,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:19,706 INFO L225 Difference]: With dead ends: 47180 [2021-11-07 01:25:19,706 INFO L226 Difference]: Without dead ends: 35220 [2021-11-07 01:25:19,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:25:19,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35220 states. [2021-11-07 01:25:21,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35220 to 35132. [2021-11-07 01:25:21,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35132 states, 35071 states have (on average 1.295400758461407) internal successors, (45431), 35131 states have internal predecessors, (45431), 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 01:25:21,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35132 states to 35132 states and 45431 transitions. [2021-11-07 01:25:21,579 INFO L78 Accepts]: Start accepts. Automaton has 35132 states and 45431 transitions. Word has length 52 [2021-11-07 01:25:21,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:21,579 INFO L470 AbstractCegarLoop]: Abstraction has 35132 states and 45431 transitions. [2021-11-07 01:25:21,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 01:25:21,581 INFO L276 IsEmpty]: Start isEmpty. Operand 35132 states and 45431 transitions. [2021-11-07 01:25:21,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 01:25:21,586 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:21,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:21,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:21,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:21,809 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:25:21,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:21,809 INFO L85 PathProgramCache]: Analyzing trace with hash -475618733, now seen corresponding path program 1 times [2021-11-07 01:25:21,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:21,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620031001] [2021-11-07 01:25:21,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:21,821 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:21,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:21,822 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:21,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:25:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:31,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:25:31,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:32,063 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 01:25:32,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:32,317 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 01:25:32,318 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:32,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1620031001] [2021-11-07 01:25:32,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1620031001] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:32,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:32,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:25:32,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505609510] [2021-11-07 01:25:32,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:25:32,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:32,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:25:32,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:25:32,321 INFO L87 Difference]: Start difference. First operand 35132 states and 45431 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 01:25:37,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:37,665 INFO L93 Difference]: Finished difference Result 126208 states and 162855 transitions. [2021-11-07 01:25:37,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:25:37,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 56 [2021-11-07 01:25:37,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:38,047 INFO L225 Difference]: With dead ends: 126208 [2021-11-07 01:25:38,048 INFO L226 Difference]: Without dead ends: 91168 [2021-11-07 01:25:38,195 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:25:38,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91168 states. [2021-11-07 01:25:41,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91168 to 86756. [2021-11-07 01:25:41,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86756 states, 86695 states have (on average 1.2912740065747736) internal successors, (111947), 86755 states have internal predecessors, (111947), 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 01:25:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86756 states to 86756 states and 111947 transitions. [2021-11-07 01:25:41,994 INFO L78 Accepts]: Start accepts. Automaton has 86756 states and 111947 transitions. Word has length 56 [2021-11-07 01:25:41,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:41,995 INFO L470 AbstractCegarLoop]: Abstraction has 86756 states and 111947 transitions. [2021-11-07 01:25:41,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 01:25:41,995 INFO L276 IsEmpty]: Start isEmpty. Operand 86756 states and 111947 transitions. [2021-11-07 01:25:41,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 01:25:41,999 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:41,999 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:42,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:42,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:42,217 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:25:42,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:42,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1528840602, now seen corresponding path program 1 times [2021-11-07 01:25:42,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:42,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465694970] [2021-11-07 01:25:42,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:42,223 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:42,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:42,224 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:42,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:25:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:52,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 1994 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:25:53,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:53,379 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 01:25:53,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:53,760 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 01:25:53,760 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:53,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465694970] [2021-11-07 01:25:53,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465694970] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:53,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:53,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:25:53,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187136388] [2021-11-07 01:25:53,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:25:53,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:53,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:25:53,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:25:53,763 INFO L87 Difference]: Start difference. First operand 86756 states and 111947 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 01:25:59,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:59,558 INFO L93 Difference]: Finished difference Result 165370 states and 213658 transitions. [2021-11-07 01:25:59,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:25:59,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 70 [2021-11-07 01:25:59,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:59,750 INFO L225 Difference]: With dead ends: 165370 [2021-11-07 01:25:59,751 INFO L226 Difference]: Without dead ends: 78706 [2021-11-07 01:25:59,926 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:26:00,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78706 states. [2021-11-07 01:26:02,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78706 to 78454. [2021-11-07 01:26:02,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78454 states, 78393 states have (on average 1.2917735001849655) internal successors, (101266), 78453 states have internal predecessors, (101266), 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 01:26:02,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78454 states to 78454 states and 101266 transitions. [2021-11-07 01:26:02,954 INFO L78 Accepts]: Start accepts. Automaton has 78454 states and 101266 transitions. Word has length 70 [2021-11-07 01:26:02,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:02,954 INFO L470 AbstractCegarLoop]: Abstraction has 78454 states and 101266 transitions. [2021-11-07 01:26:02,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 01:26:02,955 INFO L276 IsEmpty]: Start isEmpty. Operand 78454 states and 101266 transitions. [2021-11-07 01:26:02,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 01:26:02,958 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:02,959 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:03,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:03,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:03,185 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:26:03,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:03,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1579959453, now seen corresponding path program 1 times [2021-11-07 01:26:03,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:03,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438849462] [2021-11-07 01:26:03,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:03,191 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:03,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:03,192 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:03,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:26:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:13,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:26:13,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:14,194 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:14,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:14,805 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:14,805 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:14,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438849462] [2021-11-07 01:26:14,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438849462] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:14,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:14,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:26:14,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540564734] [2021-11-07 01:26:14,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:26:14,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:14,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:26:14,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:26:14,808 INFO L87 Difference]: Start difference. First operand 78454 states and 101266 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 01:26:20,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:20,491 INFO L93 Difference]: Finished difference Result 215984 states and 278924 transitions. [2021-11-07 01:26:20,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:26:20,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 78 [2021-11-07 01:26:20,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:20,814 INFO L225 Difference]: With dead ends: 215984 [2021-11-07 01:26:20,814 INFO L226 Difference]: Without dead ends: 137793 [2021-11-07 01:26:20,971 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:26:21,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137793 states. [2021-11-07 01:26:26,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137793 to 137577. [2021-11-07 01:26:26,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137577 states, 137516 states have (on average 1.2903443962884318) internal successors, (177443), 137576 states have internal predecessors, (177443), 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 01:26:26,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137577 states to 137577 states and 177443 transitions. [2021-11-07 01:26:26,946 INFO L78 Accepts]: Start accepts. Automaton has 137577 states and 177443 transitions. Word has length 78 [2021-11-07 01:26:26,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:26,946 INFO L470 AbstractCegarLoop]: Abstraction has 137577 states and 177443 transitions. [2021-11-07 01:26:26,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 01:26:26,947 INFO L276 IsEmpty]: Start isEmpty. Operand 137577 states and 177443 transitions. [2021-11-07 01:26:26,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-07 01:26:26,950 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:26,950 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:26,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:27,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:27,172 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:26:27,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:27,173 INFO L85 PathProgramCache]: Analyzing trace with hash -82814339, now seen corresponding path program 1 times [2021-11-07 01:26:27,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:27,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554754017] [2021-11-07 01:26:27,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:27,180 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:27,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:27,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:27,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523e5424-4206-4bfa-953c-57866b030aa2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:26:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:37,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 1998 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:26:37,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:37,529 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:37,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:37,889 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:37,890 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:37,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554754017] [2021-11-07 01:26:37,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554754017] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:37,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:37,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:26:37,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93998954] [2021-11-07 01:26:37,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:26:37,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:37,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:26:37,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:26:37,892 INFO L87 Difference]: Start difference. First operand 137577 states and 177443 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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)