./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/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 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:19:31,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:19:31,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:19:31,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:19:31,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:19:31,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:19:31,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:19:31,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:19:31,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:19:31,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:19:31,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:19:31,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:19:31,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:19:31,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:19:31,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:19:31,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:19:31,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:19:31,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:19:31,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:19:31,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:19:31,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:19:31,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:19:31,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:19:31,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:19:31,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:19:31,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:19:31,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:19:31,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:19:31,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:19:31,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:19:31,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:19:31,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:19:31,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:19:31,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:19:31,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:19:31,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:19:31,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:19:31,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:19:31,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:19:31,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:19:31,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:19:31,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:19:31,341 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:19:31,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:19:31,342 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:19:31,342 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:19:31,342 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:19:31,342 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:19:31,343 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:19:31,343 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:19:31,343 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:19:31,343 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:19:31,344 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:19:31,344 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:19:31,344 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:19:31,344 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:19:31,345 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:19:31,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:19:31,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:19:31,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:19:31,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:19:31,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:19:31,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:19:31,347 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:19:31,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:19:31,348 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:19:31,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:19:31,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:19:31,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:19:31,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:19:31,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:19:31,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:19:31,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:19:31,350 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:19:31,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:19:31,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:19:31,350 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:19:31,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:19:31,351 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b [2021-11-07 01:19:31,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:19:31,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:19:31,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:19:31,624 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:19:31,625 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:19:31,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 01:19:31,705 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/data/c3b849dcd/9c496e9d40f24a3498fc4558a29a9689/FLAG5fed82d95 [2021-11-07 01:19:32,733 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:19:32,733 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 01:19:32,801 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/data/c3b849dcd/9c496e9d40f24a3498fc4558a29a9689/FLAG5fed82d95 [2021-11-07 01:19:33,115 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/data/c3b849dcd/9c496e9d40f24a3498fc4558a29a9689 [2021-11-07 01:19:33,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:19:33,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:19:33,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:19:33,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:19:33,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:19:33,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:19:33" (1/1) ... [2021-11-07 01:19:33,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a64741f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:33, skipping insertion in model container [2021-11-07 01:19:33,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:19:33" (1/1) ... [2021-11-07 01:19:33,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:19:33,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:19:35,207 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:35,210 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:35,343 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:35,344 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:35,383 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:35,384 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:19:36,311 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-07 01:19:36,321 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-07 01:19:36,321 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-07 01:19:36,322 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-07 01:19:36,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:19:36,404 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 01:19:36,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@333cc433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:36, skipping insertion in model container [2021-11-07 01:19:36,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:19:36,406 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:19:36,408 INFO L168 Benchmark]: Toolchain (without parser) took 3288.17 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 73.3 MB in the beginning and 60.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:19:36,409 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory was 83.0 MB in the beginning and 82.9 MB in the end (delta: 67.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:19:36,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3285.36 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 73.0 MB in the beginning and 60.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:19:36,414 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory was 83.0 MB in the beginning and 82.9 MB in the end (delta: 67.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3285.36 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 73.0 MB in the beginning and 60.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7471]: 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/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 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:19:38,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:19:38,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:19:38,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:19:38,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:19:38,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:19:38,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:19:38,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:19:38,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:19:38,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:19:38,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:19:38,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:19:38,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:19:38,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:19:38,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:19:38,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:19:38,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:19:38,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:19:38,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:19:38,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:19:38,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:19:38,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:19:38,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:19:38,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:19:38,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:19:38,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:19:38,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:19:38,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:19:38,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:19:38,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:19:38,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:19:38,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:19:38,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:19:38,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:19:38,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:19:38,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:19:38,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:19:38,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:19:38,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:19:38,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:19:38,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:19:38,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:19:38,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:19:38,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:19:38,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:19:38,870 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:19:38,870 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:19:38,871 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:19:38,871 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:19:38,871 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:19:38,871 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:19:38,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:19:38,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:19:38,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:19:38,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:19:38,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:19:38,876 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:19:38,876 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:19:38,877 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:19:38,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:19:38,877 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:19:38,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:19:38,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:19:38,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:19:38,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:19:38,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:19:38,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:19:38,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:19:38,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:19:38,879 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:19:38,879 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:19:38,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:19:38,880 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:19:38,880 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:19:38,880 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b [2021-11-07 01:19:39,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:19:39,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:19:39,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:19:39,335 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:19:39,336 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:19:39,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 01:19:39,410 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/data/b95505b57/8d8a1a85d1dd46c8b5469dd141333fdc/FLAGda2ae5ae1 [2021-11-07 01:19:40,493 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:19:40,495 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 01:19:40,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/data/b95505b57/8d8a1a85d1dd46c8b5469dd141333fdc/FLAGda2ae5ae1 [2021-11-07 01:19:40,828 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/data/b95505b57/8d8a1a85d1dd46c8b5469dd141333fdc [2021-11-07 01:19:40,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:19:40,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:19:40,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:19:40,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:19:40,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:19:40,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:19:40" (1/1) ... [2021-11-07 01:19:40,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70da0e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:40, skipping insertion in model container [2021-11-07 01:19:40,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:19:40" (1/1) ... [2021-11-07 01:19:40,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:19:41,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:19:44,075 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-07 01:19:44,079 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-07 01:19:44,080 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-07 01:19:44,081 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-07 01:19:44,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:19:44,170 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:19:44,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:19:44,690 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-07 01:19:44,691 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-07 01:19:44,691 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-07 01:19:44,692 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-07 01:19:44,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:19:44,733 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:19:45,204 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-07 01:19:45,204 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-07 01:19:45,205 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-07 01:19:45,206 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_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-07 01:19:45,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:19:45,547 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:19:45,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:45 WrapperNode [2021-11-07 01:19:45,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:19:45,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:19:45,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:19:45,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:19:45,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:45" (1/1) ... [2021-11-07 01:19:45,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:45" (1/1) ... [2021-11-07 01:20:00,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:20:00,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:20:00,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:20:00,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:20:00,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:45" (1/1) ... [2021-11-07 01:20:00,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:45" (1/1) ... [2021-11-07 01:20:01,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:45" (1/1) ... [2021-11-07 01:20:01,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:45" (1/1) ... [2021-11-07 01:20:04,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:45" (1/1) ... [2021-11-07 01:20:04,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:45" (1/1) ... [2021-11-07 01:20:04,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:45" (1/1) ... [2021-11-07 01:20:05,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:20:05,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:20:05,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:20:05,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:20:05,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:45" (1/1) ... [2021-11-07 01:20:05,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:20:05,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:20:05,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:20:05,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:20:05,721 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-07 01:20:05,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:20:05,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:20:05,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:20:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:20:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:20:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:20:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:20:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:20:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:20:05,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:20:05,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:20:05,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:20:05,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:20:05,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:20:05,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:20:05,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:20:05,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:20:05,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:20:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:20:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:20:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:20:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:20:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:20:05,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:20:05,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:20:05,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:20:05,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:20:05,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:20:05,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:24:09,761 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_14_returnLabel: main_#res := 0bv32; [2021-11-07 01:24:09,766 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 01:24:09,768 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L9983: #t~ret1275 := main_#res; [2021-11-07 01:24:09,776 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-07 01:24:09,891 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:24:09,892 INFO L299 CfgBuilder]: Removed 44956 assume(true) statements. [2021-11-07 01:24:09,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:24:09 BoogieIcfgContainer [2021-11-07 01:24:09,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:24:09,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:24:09,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:24:09,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:24:09,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:19:40" (1/3) ... [2021-11-07 01:24:09,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f74f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:24:09, skipping insertion in model container [2021-11-07 01:24:09,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:19:45" (2/3) ... [2021-11-07 01:24:09,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f74f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:24:09, skipping insertion in model container [2021-11-07 01:24:09,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:24:09" (3/3) ... [2021-11-07 01:24:09,927 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 01:24:09,933 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:24:09,933 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2021-11-07 01:24:10,113 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:24:10,122 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 01:24:10,123 INFO L340 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2021-11-07 01:24:10,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 28815 states, 28746 states have (on average 1.2065330828637029) internal successors, (34683), 28814 states have internal predecessors, (34683), 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 01:24:10,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 01:24:10,682 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:10,683 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:24:10,684 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 01:24:10,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:10,695 INFO L85 PathProgramCache]: Analyzing trace with hash -29633841, now seen corresponding path program 1 times [2021-11-07 01:24:10,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:10,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722794740] [2021-11-07 01:24:10,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:10,723 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:10,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:10,727 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:10,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:24:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:12,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:24:12,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:12,991 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 01:24:12,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:13,074 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 01:24:13,075 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:13,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722794740] [2021-11-07 01:24:13,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722794740] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:13,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:13,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:24:13,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417173476] [2021-11-07 01:24:13,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:24:13,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:13,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:24:13,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:24:13,164 INFO L87 Difference]: Start difference. First operand has 28815 states, 28746 states have (on average 1.2065330828637029) internal successors, (34683), 28814 states have internal predecessors, (34683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:14,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:14,940 INFO L93 Difference]: Finished difference Result 57591 states and 69316 transitions. [2021-11-07 01:24:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:24:14,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-07 01:24:14,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:15,191 INFO L225 Difference]: With dead ends: 57591 [2021-11-07 01:24:15,191 INFO L226 Difference]: Without dead ends: 28652 [2021-11-07 01:24:15,271 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:24:15,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28652 states. [2021-11-07 01:24:16,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28652 to 28652. [2021-11-07 01:24:16,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28652 states, 28583 states have (on average 1.19700521288878) internal successors, (34214), 28651 states have internal predecessors, (34214), 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 01:24:16,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28652 states to 28652 states and 34214 transitions. [2021-11-07 01:24:16,913 INFO L78 Accepts]: Start accepts. Automaton has 28652 states and 34214 transitions. Word has length 17 [2021-11-07 01:24:16,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:16,913 INFO L470 AbstractCegarLoop]: Abstraction has 28652 states and 34214 transitions. [2021-11-07 01:24:16,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:16,915 INFO L276 IsEmpty]: Start isEmpty. Operand 28652 states and 34214 transitions. [2021-11-07 01:24:16,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:24:16,916 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:16,917 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] [2021-11-07 01:24:16,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:17,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:17,131 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 01:24:17,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:17,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1419453784, now seen corresponding path program 1 times [2021-11-07 01:24:17,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:17,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074861768] [2021-11-07 01:24:17,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:17,137 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:17,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:17,141 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:17,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:24:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:19,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:24:19,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:19,572 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 01:24:19,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:19,790 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 01:24:19,790 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:19,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074861768] [2021-11-07 01:24:19,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074861768] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:19,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:19,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:24:19,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978788383] [2021-11-07 01:24:19,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:24:19,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:19,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:24:19,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:24:19,795 INFO L87 Difference]: Start difference. First operand 28652 states and 34214 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 01:24:21,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:21,817 INFO L93 Difference]: Finished difference Result 28652 states and 34214 transitions. [2021-11-07 01:24:21,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:24:21,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-07 01:24:21,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:21,892 INFO L225 Difference]: With dead ends: 28652 [2021-11-07 01:24:21,892 INFO L226 Difference]: Without dead ends: 28648 [2021-11-07 01:24:21,902 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:24:21,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28648 states. [2021-11-07 01:24:23,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28648 to 28648. [2021-11-07 01:24:23,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28648 states, 28581 states have (on average 1.196949022077604) internal successors, (34210), 28647 states have internal predecessors, (34210), 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 01:24:23,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28648 states to 28648 states and 34210 transitions. [2021-11-07 01:24:23,213 INFO L78 Accepts]: Start accepts. Automaton has 28648 states and 34210 transitions. Word has length 25 [2021-11-07 01:24:23,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:23,214 INFO L470 AbstractCegarLoop]: Abstraction has 28648 states and 34210 transitions. [2021-11-07 01:24:23,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 01:24:23,214 INFO L276 IsEmpty]: Start isEmpty. Operand 28648 states and 34210 transitions. [2021-11-07 01:24:23,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-07 01:24:23,216 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:23,216 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] [2021-11-07 01:24:23,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:23,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:23,439 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 01:24:23,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:23,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1702205349, now seen corresponding path program 1 times [2021-11-07 01:24:23,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:23,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826958389] [2021-11-07 01:24:23,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:23,446 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:23,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:23,448 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:23,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:24:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:25,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:24:25,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:25,512 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 01:24:25,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:25,714 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 01:24:25,714 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:25,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826958389] [2021-11-07 01:24:25,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826958389] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:25,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:25,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:24:25,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777752441] [2021-11-07 01:24:25,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:24:25,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:25,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:24:25,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:24:25,717 INFO L87 Difference]: Start difference. First operand 28648 states and 34210 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 01:24:27,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:27,611 INFO L93 Difference]: Finished difference Result 28648 states and 34210 transitions. [2021-11-07 01:24:27,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:24:27,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 27 [2021-11-07 01:24:27,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:27,693 INFO L225 Difference]: With dead ends: 28648 [2021-11-07 01:24:27,694 INFO L226 Difference]: Without dead ends: 28644 [2021-11-07 01:24:27,702 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:24:27,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28644 states. [2021-11-07 01:24:28,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28644 to 28644. [2021-11-07 01:24:28,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28644 states, 28579 states have (on average 1.1968928234017986) internal successors, (34206), 28643 states have internal predecessors, (34206), 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 01:24:28,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28644 states to 28644 states and 34206 transitions. [2021-11-07 01:24:28,939 INFO L78 Accepts]: Start accepts. Automaton has 28644 states and 34206 transitions. Word has length 27 [2021-11-07 01:24:28,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:28,940 INFO L470 AbstractCegarLoop]: Abstraction has 28644 states and 34206 transitions. [2021-11-07 01:24:28,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 01:24:28,940 INFO L276 IsEmpty]: Start isEmpty. Operand 28644 states and 34206 transitions. [2021-11-07 01:24:28,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 01:24:28,942 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:28,942 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] [2021-11-07 01:24:28,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:29,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:29,167 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 01:24:29,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:29,167 INFO L85 PathProgramCache]: Analyzing trace with hash 565508062, now seen corresponding path program 1 times [2021-11-07 01:24:29,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:29,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660889398] [2021-11-07 01:24:29,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:29,170 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:29,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:29,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:29,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:24:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:31,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:24:31,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:31,336 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 01:24:31,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:31,523 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 01:24:31,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:31,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660889398] [2021-11-07 01:24:31,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660889398] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:31,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:31,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:24:31,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598371156] [2021-11-07 01:24:31,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:24:31,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:31,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:24:31,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:24:31,526 INFO L87 Difference]: Start difference. First operand 28644 states and 34206 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 01:24:33,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:33,353 INFO L93 Difference]: Finished difference Result 28644 states and 34206 transitions. [2021-11-07 01:24:33,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:24:33,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 29 [2021-11-07 01:24:33,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:33,435 INFO L225 Difference]: With dead ends: 28644 [2021-11-07 01:24:33,435 INFO L226 Difference]: Without dead ends: 28640 [2021-11-07 01:24:33,444 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:24:33,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28640 states. [2021-11-07 01:24:34,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28640 to 28640. [2021-11-07 01:24:34,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28640 states, 28577 states have (on average 1.1968366168597124) internal successors, (34202), 28639 states have internal predecessors, (34202), 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 01:24:34,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28640 states to 28640 states and 34202 transitions. [2021-11-07 01:24:34,849 INFO L78 Accepts]: Start accepts. Automaton has 28640 states and 34202 transitions. Word has length 29 [2021-11-07 01:24:34,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:34,850 INFO L470 AbstractCegarLoop]: Abstraction has 28640 states and 34202 transitions. [2021-11-07 01:24:34,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 01:24:34,850 INFO L276 IsEmpty]: Start isEmpty. Operand 28640 states and 34202 transitions. [2021-11-07 01:24:34,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:24:34,852 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:34,852 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] [2021-11-07 01:24:34,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:35,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:35,060 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 01:24:35,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:35,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2005290015, now seen corresponding path program 1 times [2021-11-07 01:24:35,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:35,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130435219] [2021-11-07 01:24:35,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:35,062 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:35,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:35,063 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:35,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:24:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:36,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:24:36,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:37,122 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 01:24:37,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:37,354 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 01:24:37,354 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:37,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130435219] [2021-11-07 01:24:37,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130435219] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:37,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:37,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:24:37,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577220720] [2021-11-07 01:24:37,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:24:37,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:37,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:24:37,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:24:37,357 INFO L87 Difference]: Start difference. First operand 28640 states and 34202 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 01:24:39,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:39,231 INFO L93 Difference]: Finished difference Result 28640 states and 34202 transitions. [2021-11-07 01:24:39,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:24:39,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 31 [2021-11-07 01:24:39,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:39,313 INFO L225 Difference]: With dead ends: 28640 [2021-11-07 01:24:39,313 INFO L226 Difference]: Without dead ends: 28636 [2021-11-07 01:24:39,324 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:24:39,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28636 states. [2021-11-07 01:24:41,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28636 to 28636. [2021-11-07 01:24:41,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28636 states, 28575 states have (on average 1.1967804024496937) internal successors, (34198), 28635 states have internal predecessors, (34198), 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 01:24:41,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28636 states to 28636 states and 34198 transitions. [2021-11-07 01:24:41,111 INFO L78 Accepts]: Start accepts. Automaton has 28636 states and 34198 transitions. Word has length 31 [2021-11-07 01:24:41,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:41,111 INFO L470 AbstractCegarLoop]: Abstraction has 28636 states and 34198 transitions. [2021-11-07 01:24:41,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 01:24:41,112 INFO L276 IsEmpty]: Start isEmpty. Operand 28636 states and 34198 transitions. [2021-11-07 01:24:41,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:24:41,113 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:41,114 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] [2021-11-07 01:24:41,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:41,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:41,317 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 01:24:41,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:41,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1358920804, now seen corresponding path program 1 times [2021-11-07 01:24:41,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:41,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684060218] [2021-11-07 01:24:41,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:41,319 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:41,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:41,321 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:41,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:24:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:43,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:24:43,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:43,336 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 01:24:43,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:43,539 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 01:24:43,540 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:43,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684060218] [2021-11-07 01:24:43,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684060218] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:43,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:43,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:24:43,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680229494] [2021-11-07 01:24:43,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:24:43,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:43,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:24:43,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:24:43,542 INFO L87 Difference]: Start difference. First operand 28636 states and 34198 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 01:24:48,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:48,308 INFO L93 Difference]: Finished difference Result 28636 states and 34198 transitions. [2021-11-07 01:24:48,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:24:48,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 33 [2021-11-07 01:24:48,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:48,365 INFO L225 Difference]: With dead ends: 28636 [2021-11-07 01:24:48,365 INFO L226 Difference]: Without dead ends: 28632 [2021-11-07 01:24:48,375 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:24:48,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28632 states. [2021-11-07 01:24:50,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28632 to 28632. [2021-11-07 01:24:50,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28632 states, 28573 states have (on average 1.1967241801700907) internal successors, (34194), 28631 states have internal predecessors, (34194), 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 01:24:50,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28632 states to 28632 states and 34194 transitions. [2021-11-07 01:24:50,098 INFO L78 Accepts]: Start accepts. Automaton has 28632 states and 34194 transitions. Word has length 33 [2021-11-07 01:24:50,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:50,098 INFO L470 AbstractCegarLoop]: Abstraction has 28632 states and 34194 transitions. [2021-11-07 01:24:50,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 01:24:50,098 INFO L276 IsEmpty]: Start isEmpty. Operand 28632 states and 34194 transitions. [2021-11-07 01:24:50,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 01:24:50,099 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:50,100 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] [2021-11-07 01:24:50,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:50,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:50,300 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 01:24:50,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:50,301 INFO L85 PathProgramCache]: Analyzing trace with hash 255144295, now seen corresponding path program 1 times [2021-11-07 01:24:50,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:50,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879380506] [2021-11-07 01:24:50,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:50,303 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:50,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:50,304 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:50,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:24:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:52,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:24:52,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:52,444 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 01:24:52,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:52,704 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 01:24:52,704 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:52,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879380506] [2021-11-07 01:24:52,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879380506] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:52,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:52,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:24:52,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047188340] [2021-11-07 01:24:52,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:24:52,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:52,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:24:52,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:24:52,707 INFO L87 Difference]: Start difference. First operand 28632 states and 34194 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 01:24:54,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:54,511 INFO L93 Difference]: Finished difference Result 28632 states and 34194 transitions. [2021-11-07 01:24:54,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:24:54,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 35 [2021-11-07 01:24:54,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:54,556 INFO L225 Difference]: With dead ends: 28632 [2021-11-07 01:24:54,556 INFO L226 Difference]: Without dead ends: 28628 [2021-11-07 01:24:54,563 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:24:54,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28628 states. [2021-11-07 01:24:56,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28628 to 28628. [2021-11-07 01:24:56,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28628 states, 28571 states have (on average 1.1966679500192503) internal successors, (34190), 28627 states have internal predecessors, (34190), 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 01:24:56,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28628 states to 28628 states and 34190 transitions. [2021-11-07 01:24:56,270 INFO L78 Accepts]: Start accepts. Automaton has 28628 states and 34190 transitions. Word has length 35 [2021-11-07 01:24:56,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:56,270 INFO L470 AbstractCegarLoop]: Abstraction has 28628 states and 34190 transitions. [2021-11-07 01:24:56,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 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 01:24:56,271 INFO L276 IsEmpty]: Start isEmpty. Operand 28628 states and 34190 transitions. [2021-11-07 01:24:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 01:24:56,272 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:56,273 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] [2021-11-07 01:24:56,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:56,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:56,479 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 01:24:56,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:56,479 INFO L85 PathProgramCache]: Analyzing trace with hash 382841578, now seen corresponding path program 1 times [2021-11-07 01:24:56,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:56,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212217132] [2021-11-07 01:24:56,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:56,483 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:56,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:56,484 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:56,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:24:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:58,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:24:58,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:58,804 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 01:24:58,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:59,052 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 01:24:59,053 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:59,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212217132] [2021-11-07 01:24:59,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212217132] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:59,053 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:59,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:24:59,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449398015] [2021-11-07 01:24:59,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:24:59,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:59,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:24:59,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:24:59,056 INFO L87 Difference]: Start difference. First operand 28628 states and 34190 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:01,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:01,067 INFO L93 Difference]: Finished difference Result 28628 states and 34190 transitions. [2021-11-07 01:25:01,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:25:01,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-07 01:25:01,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:01,108 INFO L225 Difference]: With dead ends: 28628 [2021-11-07 01:25:01,108 INFO L226 Difference]: Without dead ends: 28624 [2021-11-07 01:25:01,114 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:01,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28624 states. [2021-11-07 01:25:02,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28624 to 28624. [2021-11-07 01:25:02,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28624 states, 28569 states have (on average 1.1966117119955195) internal successors, (34186), 28623 states have internal predecessors, (34186), 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 01:25:02,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28624 states to 28624 states and 34186 transitions. [2021-11-07 01:25:02,658 INFO L78 Accepts]: Start accepts. Automaton has 28624 states and 34186 transitions. Word has length 37 [2021-11-07 01:25:02,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:02,658 INFO L470 AbstractCegarLoop]: Abstraction has 28624 states and 34186 transitions. [2021-11-07 01:25:02,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:02,658 INFO L276 IsEmpty]: Start isEmpty. Operand 28624 states and 34186 transitions. [2021-11-07 01:25:02,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:25:02,660 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:02,660 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] [2021-11-07 01:25:02,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:02,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:02,864 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 01:25:02,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:02,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1454120723, now seen corresponding path program 1 times [2021-11-07 01:25:02,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:02,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190419462] [2021-11-07 01:25:02,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:02,867 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:02,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:02,867 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:02,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:25:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:04,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:25:04,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:05,037 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 01:25:05,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:05,269 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 01:25:05,270 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:05,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190419462] [2021-11-07 01:25:05,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190419462] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:05,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:05,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:25:05,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537699541] [2021-11-07 01:25:05,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:25:05,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:05,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:25:05,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:05,272 INFO L87 Difference]: Start difference. First operand 28624 states and 34186 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 01:25:07,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:07,358 INFO L93 Difference]: Finished difference Result 28624 states and 34186 transitions. [2021-11-07 01:25:07,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:25:07,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 39 [2021-11-07 01:25:07,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:07,404 INFO L225 Difference]: With dead ends: 28624 [2021-11-07 01:25:07,404 INFO L226 Difference]: Without dead ends: 28620 [2021-11-07 01:25:07,412 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:07,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28620 states. [2021-11-07 01:25:09,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28620 to 28620. [2021-11-07 01:25:09,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28620 states, 28567 states have (on average 1.196555466097245) internal successors, (34182), 28619 states have internal predecessors, (34182), 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 01:25:09,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28620 states to 28620 states and 34182 transitions. [2021-11-07 01:25:09,333 INFO L78 Accepts]: Start accepts. Automaton has 28620 states and 34182 transitions. Word has length 39 [2021-11-07 01:25:09,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:09,333 INFO L470 AbstractCegarLoop]: Abstraction has 28620 states and 34182 transitions. [2021-11-07 01:25:09,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 01:25:09,333 INFO L276 IsEmpty]: Start isEmpty. Operand 28620 states and 34182 transitions. [2021-11-07 01:25:09,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 01:25:09,334 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:09,334 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] [2021-11-07 01:25:09,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-07 01:25:09,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:09,538 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 01:25:09,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:09,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1543333008, now seen corresponding path program 1 times [2021-11-07 01:25:09,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:09,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410286152] [2021-11-07 01:25:09,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:09,542 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:09,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:09,543 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:09,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:25:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:11,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:25:11,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:11,841 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 01:25:11,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:12,086 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 01:25:12,086 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:12,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410286152] [2021-11-07 01:25:12,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410286152] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:12,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:12,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:25:12,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374253944] [2021-11-07 01:25:12,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:25:12,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:12,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:25:12,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:12,088 INFO L87 Difference]: Start difference. First operand 28620 states and 34182 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 01:25:14,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:14,230 INFO L93 Difference]: Finished difference Result 28620 states and 34182 transitions. [2021-11-07 01:25:14,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:25:14,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 41 [2021-11-07 01:25:14,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:14,275 INFO L225 Difference]: With dead ends: 28620 [2021-11-07 01:25:14,275 INFO L226 Difference]: Without dead ends: 28616 [2021-11-07 01:25:14,283 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:14,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28616 states. [2021-11-07 01:25:16,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28616 to 28616. [2021-11-07 01:25:16,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28616 states, 28565 states have (on average 1.1964992123227727) internal successors, (34178), 28615 states have internal predecessors, (34178), 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 01:25:16,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28616 states to 28616 states and 34178 transitions. [2021-11-07 01:25:16,433 INFO L78 Accepts]: Start accepts. Automaton has 28616 states and 34178 transitions. Word has length 41 [2021-11-07 01:25:16,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:16,433 INFO L470 AbstractCegarLoop]: Abstraction has 28616 states and 34178 transitions. [2021-11-07 01:25:16,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 01:25:16,434 INFO L276 IsEmpty]: Start isEmpty. Operand 28616 states and 34178 transitions. [2021-11-07 01:25:16,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 01:25:16,435 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:16,435 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] [2021-11-07 01:25:16,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:16,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:16,638 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 01:25:16,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:16,639 INFO L85 PathProgramCache]: Analyzing trace with hash 210955841, now seen corresponding path program 1 times [2021-11-07 01:25:16,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:16,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316191688] [2021-11-07 01:25:16,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:16,641 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:16,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:16,643 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:16,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:25:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:18,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 01:25:18,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:19,492 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 01:25:19,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:19,815 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 01:25:19,815 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:19,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316191688] [2021-11-07 01:25:19,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316191688] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:19,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:19,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [] total 16 [2021-11-07 01:25:19,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810005275] [2021-11-07 01:25:19,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 01:25:19,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:19,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 01:25:19,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:25:19,818 INFO L87 Difference]: Start difference. First operand 28616 states and 34178 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 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 01:25:25,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:25,856 INFO L93 Difference]: Finished difference Result 33237 states and 39666 transitions. [2021-11-07 01:25:25,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 01:25:25,857 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 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 42 [2021-11-07 01:25:25,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:25,904 INFO L225 Difference]: With dead ends: 33237 [2021-11-07 01:25:25,904 INFO L226 Difference]: Without dead ends: 28663 [2021-11-07 01:25:25,920 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2021-11-07 01:25:25,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28663 states. [2021-11-07 01:25:28,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28663 to 28628. [2021-11-07 01:25:28,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28628 states, 28577 states have (on average 1.196416698743745) internal successors, (34190), 28627 states have internal predecessors, (34190), 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 01:25:28,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28628 states to 28628 states and 34190 transitions. [2021-11-07 01:25:28,399 INFO L78 Accepts]: Start accepts. Automaton has 28628 states and 34190 transitions. Word has length 42 [2021-11-07 01:25:28,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:28,399 INFO L470 AbstractCegarLoop]: Abstraction has 28628 states and 34190 transitions. [2021-11-07 01:25:28,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 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 01:25:28,399 INFO L276 IsEmpty]: Start isEmpty. Operand 28628 states and 34190 transitions. [2021-11-07 01:25:28,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 01:25:28,400 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:28,400 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] [2021-11-07 01:25:28,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:28,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:28,602 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 01:25:28,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:28,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1376992653, now seen corresponding path program 1 times [2021-11-07 01:25:28,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:28,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418335546] [2021-11-07 01:25:28,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:28,605 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:28,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:28,606 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:28,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:25:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:30,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:25:30,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:30,794 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 01:25:30,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:31,144 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 01:25:31,145 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:31,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418335546] [2021-11-07 01:25:31,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418335546] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:31,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:31,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:25:31,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078695504] [2021-11-07 01:25:31,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:25:31,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:31,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:25:31,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:31,147 INFO L87 Difference]: Start difference. First operand 28628 states and 34190 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 01:25:33,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:33,531 INFO L93 Difference]: Finished difference Result 28628 states and 34190 transitions. [2021-11-07 01:25:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:25:33,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 43 [2021-11-07 01:25:33,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:33,576 INFO L225 Difference]: With dead ends: 28628 [2021-11-07 01:25:33,576 INFO L226 Difference]: Without dead ends: 28624 [2021-11-07 01:25:33,581 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:33,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28624 states. [2021-11-07 01:25:35,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28624 to 28624. [2021-11-07 01:25:35,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28624 states, 28575 states have (on average 1.1963604549431321) internal successors, (34186), 28623 states have internal predecessors, (34186), 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 01:25:35,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28624 states to 28624 states and 34186 transitions. [2021-11-07 01:25:35,669 INFO L78 Accepts]: Start accepts. Automaton has 28624 states and 34186 transitions. Word has length 43 [2021-11-07 01:25:35,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:35,669 INFO L470 AbstractCegarLoop]: Abstraction has 28624 states and 34186 transitions. [2021-11-07 01:25:35,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 01:25:35,670 INFO L276 IsEmpty]: Start isEmpty. Operand 28624 states and 34186 transitions. [2021-11-07 01:25:35,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 01:25:35,670 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:35,671 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] [2021-11-07 01:25:35,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:35,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:35,875 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-07 01:25:35,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:35,875 INFO L85 PathProgramCache]: Analyzing trace with hash -437701130, now seen corresponding path program 1 times [2021-11-07 01:25:35,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:35,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018321138] [2021-11-07 01:25:35,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:35,878 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:35,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:35,880 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:35,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec2b6b2-303b-449c-8098-f0f66a0cd4ae/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 01:25:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:38,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:25:38,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:38,364 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 01:25:38,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:38,651 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 01:25:38,651 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:38,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018321138] [2021-11-07 01:25:38,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018321138] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:38,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:38,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:25:38,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898622840] [2021-11-07 01:25:38,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:25:38,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:38,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:25:38,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:38,654 INFO L87 Difference]: Start difference. First operand 28624 states and 34186 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 01:25:41,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:41,442 INFO L93 Difference]: Finished difference Result 28624 states and 34186 transitions. [2021-11-07 01:25:41,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:25:41,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 45 [2021-11-07 01:25:41,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:41,487 INFO L225 Difference]: With dead ends: 28624 [2021-11-07 01:25:41,487 INFO L226 Difference]: Without dead ends: 28620 [2021-11-07 01:25:41,492 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:25:41,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28620 states.