./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH --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 2c6afaf5bedcc2af934f5b2a4cc6fb91099717aaf97d30d9787d5c01855a1a43 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:41:09,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:41:09,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:41:09,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:41:09,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:41:09,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:41:09,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:41:09,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:41:09,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:41:09,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:41:09,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:41:09,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:41:09,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:41:09,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:41:09,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:41:09,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:41:09,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:41:09,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:41:09,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:41:09,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:41:09,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:41:09,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:41:09,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:41:09,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:41:09,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:41:09,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:41:09,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:41:09,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:41:09,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:41:09,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:41:09,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:41:09,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:41:09,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:41:09,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:41:09,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:41:09,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:41:09,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:41:09,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:41:09,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:41:09,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:41:09,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:41:09,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:41:09,330 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:41:09,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:41:09,337 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:41:09,337 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:41:09,337 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:41:09,337 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:41:09,338 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:41:09,338 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:41:09,341 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:41:09,341 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:41:09,342 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:41:09,343 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:41:09,343 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:41:09,343 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:41:09,343 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:41:09,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:41:09,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:41:09,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:41:09,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:41:09,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:41:09,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:41:09,345 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:41:09,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:41:09,346 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:41:09,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:41:09,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:41:09,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:41:09,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:09,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:41:09,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:41:09,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:41:09,348 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:41:09,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:41:09,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:41:09,349 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:41:09,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:41:09,349 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_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6afaf5bedcc2af934f5b2a4cc6fb91099717aaf97d30d9787d5c01855a1a43 [2021-11-03 05:41:09,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:41:09,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:41:09,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:41:09,658 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:41:09,659 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:41:09,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2021-11-03 05:41:09,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/data/480e45d93/61605decd3ff4df08463054bded38bd7/FLAG66d68c00a [2021-11-03 05:41:10,516 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:41:10,516 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2021-11-03 05:41:10,557 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/data/480e45d93/61605decd3ff4df08463054bded38bd7/FLAG66d68c00a [2021-11-03 05:41:11,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/data/480e45d93/61605decd3ff4df08463054bded38bd7 [2021-11-03 05:41:11,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:41:11,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:41:11,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:11,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:41:11,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:41:11,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:11" (1/1) ... [2021-11-03 05:41:11,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380dcb35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:11, skipping insertion in model container [2021-11-03 05:41:11,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:11" (1/1) ... [2021-11-03 05:41:11,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:41:11,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:41:12,134 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,156 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,157 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,158 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,200 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,205 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,453 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,464 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,466 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,467 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,473 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,479 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,480 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,482 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,488 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,492 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,495 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,496 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,541 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,552 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,735 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193323,193336] [2021-11-03 05:41:12,739 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193489,193502] [2021-11-03 05:41:12,740 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193653,193666] [2021-11-03 05:41:12,741 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193818,193831] [2021-11-03 05:41:12,744 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:41:12,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:12,793 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) [2021-11-03 05:41:12,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@147e886a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:12, skipping insertion in model container [2021-11-03 05:41:12,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:12,796 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:41:12,798 INFO L168 Benchmark]: Toolchain (without parser) took 1734.57 ms. Allocated memory is still 117.4 MB. Free memory was 74.3 MB in the beginning and 79.3 MB in the end (delta: -5.0 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2021-11-03 05:41:12,798 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 88.1 MB. Free memory was 60.6 MB in the beginning and 60.6 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:41:12,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1726.45 ms. Allocated memory is still 117.4 MB. Free memory was 74.3 MB in the beginning and 79.3 MB in the end (delta: -5.0 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2021-11-03 05:41:12,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 88.1 MB. Free memory was 60.6 MB in the beginning and 60.6 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1726.45 ms. Allocated memory is still 117.4 MB. Free memory was 74.3 MB in the beginning and 79.3 MB in the end (delta: -5.0 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3910]: 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_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH --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 2c6afaf5bedcc2af934f5b2a4cc6fb91099717aaf97d30d9787d5c01855a1a43 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:41:15,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:41:15,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:41:15,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:41:15,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:41:15,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:41:15,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:41:15,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:41:15,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:41:15,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:41:15,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:41:15,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:41:15,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:41:15,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:41:15,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:41:15,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:41:15,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:41:15,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:41:15,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:41:15,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:41:15,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:41:15,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:41:15,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:41:15,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:41:15,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:41:15,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:41:15,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:41:15,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:41:15,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:41:15,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:41:15,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:41:15,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:41:15,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:41:15,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:41:15,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:41:15,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:41:15,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:41:15,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:41:15,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:41:15,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:41:15,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:41:15,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:41:15,225 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:41:15,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:41:15,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:41:15,226 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:41:15,227 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:41:15,227 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:41:15,227 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:41:15,227 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:41:15,228 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:41:15,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:41:15,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:41:15,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:41:15,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:41:15,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:41:15,231 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:41:15,231 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:41:15,231 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:41:15,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:41:15,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:41:15,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:41:15,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:41:15,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:41:15,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:41:15,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:15,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:41:15,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:41:15,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:41:15,234 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:41:15,234 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:41:15,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:41:15,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:41:15,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:41:15,235 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_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6afaf5bedcc2af934f5b2a4cc6fb91099717aaf97d30d9787d5c01855a1a43 [2021-11-03 05:41:15,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:41:15,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:41:15,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:41:15,672 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:41:15,673 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:41:15,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2021-11-03 05:41:15,737 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/data/c7fe44655/667b32f3b25542679b6074b4835d097e/FLAGe06ff495b [2021-11-03 05:41:16,579 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:41:16,580 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2021-11-03 05:41:16,618 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/data/c7fe44655/667b32f3b25542679b6074b4835d097e/FLAGe06ff495b [2021-11-03 05:41:17,116 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/data/c7fe44655/667b32f3b25542679b6074b4835d097e [2021-11-03 05:41:17,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:41:17,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:41:17,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:17,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:41:17,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:41:17,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:17" (1/1) ... [2021-11-03 05:41:17,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba46d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:17, skipping insertion in model container [2021-11-03 05:41:17,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:17" (1/1) ... [2021-11-03 05:41:17,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:41:17,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:41:18,805 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193323,193336] [2021-11-03 05:41:18,808 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193489,193502] [2021-11-03 05:41:18,808 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193653,193666] [2021-11-03 05:41:18,809 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193818,193831] [2021-11-03 05:41:18,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:18,853 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:41:18,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:41:19,111 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193323,193336] [2021-11-03 05:41:19,112 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193489,193502] [2021-11-03 05:41:19,112 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193653,193666] [2021-11-03 05:41:19,113 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193818,193831] [2021-11-03 05:41:19,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:19,159 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:41:19,469 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193323,193336] [2021-11-03 05:41:19,469 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193489,193502] [2021-11-03 05:41:19,469 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193653,193666] [2021-11-03 05:41:19,491 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_619609a4-315c-483d-81f0-cd52f938c5c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193818,193831] [2021-11-03 05:41:19,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:19,685 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:41:19,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19 WrapperNode [2021-11-03 05:41:19,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:19,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:41:19,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:41:19,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:41:19,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:19,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:41:20,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:41:20,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:41:20,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:41:20,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:41:20,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:41:20,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:41:20,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:41:20,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (1/1) ... [2021-11-03 05:41:20,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:20,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:41:20,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:41:20,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:41:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:41:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:41:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:41:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:41:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:41:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:41:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:41:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:41:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:41:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:41:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:41:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:41:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:41:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:41:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:41:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-03 05:41:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:41:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:41:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:41:32,419 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-03 05:41:32,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 05:41:32,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0bv32; [2021-11-03 05:41:32,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 05:41:32,420 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 05:41:32,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:41:32,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0bv32; [2021-11-03 05:41:32,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0bv32; [2021-11-03 05:41:32,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0bv32; [2021-11-03 05:41:32,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0bv32; [2021-11-03 05:41:32,421 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 05:41:32,440 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:41:32,440 INFO L299 CfgBuilder]: Removed 1186 assume(true) statements. [2021-11-03 05:41:32,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:41:32 BoogieIcfgContainer [2021-11-03 05:41:32,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:41:32,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:41:32,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:41:32,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:41:32,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:41:17" (1/3) ... [2021-11-03 05:41:32,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28db9819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:41:32, skipping insertion in model container [2021-11-03 05:41:32,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:19" (2/3) ... [2021-11-03 05:41:32,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28db9819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:41:32, skipping insertion in model container [2021-11-03 05:41:32,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:41:32" (3/3) ... [2021-11-03 05:41:32,452 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2021-11-03 05:41:32,457 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:41:32,457 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-03 05:41:32,519 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:41:32,525 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 [2021-11-03 05:41:32,525 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-03 05:41:32,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 1285 states, 1270 states have (on average 1.347244094488189) internal successors, (1711), 1284 states have internal predecessors, (1711), 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) [2021-11-03 05:41:32,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-03 05:41:32,633 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:32,633 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:32,634 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:41:32,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:32,643 INFO L85 PathProgramCache]: Analyzing trace with hash 612313430, now seen corresponding path program 1 times [2021-11-03 05:41:32,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:32,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624247920] [2021-11-03 05:41:32,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:32,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:32,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:32,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:32,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:41:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:33,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:41:33,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:34,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:34,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:34,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:34,411 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:34,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624247920] [2021-11-03 05:41:34,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624247920] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:34,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:34,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:41:34,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895856090] [2021-11-03 05:41:34,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:41:34,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:34,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:41:34,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:41:34,437 INFO L87 Difference]: Start difference. First operand has 1285 states, 1270 states have (on average 1.347244094488189) internal successors, (1711), 1284 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2021-11-03 05:41:36,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:36,995 INFO L93 Difference]: Finished difference Result 4155 states and 5586 transitions. [2021-11-03 05:41:36,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:41:36,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 93 [2021-11-03 05:41:36,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:37,027 INFO L225 Difference]: With dead ends: 4155 [2021-11-03 05:41:37,027 INFO L226 Difference]: Without dead ends: 2829 [2021-11-03 05:41:37,035 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:41:37,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2021-11-03 05:41:37,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 2805. [2021-11-03 05:41:37,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 2790 states have (on average 1.2802867383512544) internal successors, (3572), 2804 states have internal predecessors, (3572), 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) [2021-11-03 05:41:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 3572 transitions. [2021-11-03 05:41:37,238 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 3572 transitions. Word has length 93 [2021-11-03 05:41:37,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:37,239 INFO L470 AbstractCegarLoop]: Abstraction has 2805 states and 3572 transitions. [2021-11-03 05:41:37,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2021-11-03 05:41:37,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 3572 transitions. [2021-11-03 05:41:37,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-03 05:41:37,244 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:37,245 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:37,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:37,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:37,471 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:41:37,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:37,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1275313139, now seen corresponding path program 1 times [2021-11-03 05:41:37,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:37,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080807646] [2021-11-03 05:41:37,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:37,474 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:37,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:37,476 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:37,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:41:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:38,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:41:38,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:39,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:39,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:39,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:39,454 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:39,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080807646] [2021-11-03 05:41:39,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080807646] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:39,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:39,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:41:39,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673570035] [2021-11-03 05:41:39,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:41:39,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:39,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:41:39,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:41:39,458 INFO L87 Difference]: Start difference. First operand 2805 states and 3572 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2021-11-03 05:41:41,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:41,987 INFO L93 Difference]: Finished difference Result 6640 states and 8522 transitions. [2021-11-03 05:41:41,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:41:41,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 119 [2021-11-03 05:41:41,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:42,014 INFO L225 Difference]: With dead ends: 6640 [2021-11-03 05:41:42,014 INFO L226 Difference]: Without dead ends: 4031 [2021-11-03 05:41:42,019 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:41:42,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4031 states. [2021-11-03 05:41:42,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4031 to 3959. [2021-11-03 05:41:42,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3959 states, 3944 states have (on average 1.286764705882353) internal successors, (5075), 3958 states have internal predecessors, (5075), 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) [2021-11-03 05:41:42,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3959 states to 3959 states and 5075 transitions. [2021-11-03 05:41:42,202 INFO L78 Accepts]: Start accepts. Automaton has 3959 states and 5075 transitions. Word has length 119 [2021-11-03 05:41:42,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:42,204 INFO L470 AbstractCegarLoop]: Abstraction has 3959 states and 5075 transitions. [2021-11-03 05:41:42,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2021-11-03 05:41:42,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3959 states and 5075 transitions. [2021-11-03 05:41:42,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-03 05:41:42,212 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:42,212 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:42,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:42,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:42,435 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:41:42,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:42,436 INFO L85 PathProgramCache]: Analyzing trace with hash -699808709, now seen corresponding path program 1 times [2021-11-03 05:41:42,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:42,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653002481] [2021-11-03 05:41:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:42,438 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:42,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:42,444 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:42,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:41:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:43,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:41:43,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:44,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:44,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:44,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:44,494 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:44,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653002481] [2021-11-03 05:41:44,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653002481] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:44,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:44,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:41:44,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59053464] [2021-11-03 05:41:44,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:41:44,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:44,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:41:44,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:41:44,497 INFO L87 Difference]: Start difference. First operand 3959 states and 5075 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2021-11-03 05:41:47,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:47,082 INFO L93 Difference]: Finished difference Result 10025 states and 12956 transitions. [2021-11-03 05:41:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:41:47,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120 [2021-11-03 05:41:47,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:47,122 INFO L225 Difference]: With dead ends: 10025 [2021-11-03 05:41:47,122 INFO L226 Difference]: Without dead ends: 6262 [2021-11-03 05:41:47,132 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:41:47,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6262 states. [2021-11-03 05:41:47,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6262 to 6186. [2021-11-03 05:41:47,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6171 states have (on average 1.2934694538972613) internal successors, (7982), 6185 states have internal predecessors, (7982), 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) [2021-11-03 05:41:47,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 7982 transitions. [2021-11-03 05:41:47,408 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 7982 transitions. Word has length 120 [2021-11-03 05:41:47,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:47,409 INFO L470 AbstractCegarLoop]: Abstraction has 6186 states and 7982 transitions. [2021-11-03 05:41:47,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2021-11-03 05:41:47,410 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 7982 transitions. [2021-11-03 05:41:47,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-03 05:41:47,416 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:47,416 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:47,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:47,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:47,639 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:41:47,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:47,640 INFO L85 PathProgramCache]: Analyzing trace with hash -567235804, now seen corresponding path program 1 times [2021-11-03 05:41:47,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:47,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097279630] [2021-11-03 05:41:47,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:47,642 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:47,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:47,643 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:47,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:41:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:48,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:41:48,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:49,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:49,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:49,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:49,707 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:49,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097279630] [2021-11-03 05:41:49,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097279630] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:49,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:49,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:41:49,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347295358] [2021-11-03 05:41:49,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:41:49,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:49,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:41:49,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:41:49,710 INFO L87 Difference]: Start difference. First operand 6186 states and 7982 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2021-11-03 05:41:52,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:52,341 INFO L93 Difference]: Finished difference Result 15195 states and 19708 transitions. [2021-11-03 05:41:52,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:41:52,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2021-11-03 05:41:52,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:52,394 INFO L225 Difference]: With dead ends: 15195 [2021-11-03 05:41:52,394 INFO L226 Difference]: Without dead ends: 9205 [2021-11-03 05:41:52,406 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:41:52,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9205 states. [2021-11-03 05:41:52,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9205 to 9131. [2021-11-03 05:41:52,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9131 states, 9116 states have (on average 1.2932207108380869) internal successors, (11789), 9130 states have internal predecessors, (11789), 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) [2021-11-03 05:41:52,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9131 states to 9131 states and 11789 transitions. [2021-11-03 05:41:52,878 INFO L78 Accepts]: Start accepts. Automaton has 9131 states and 11789 transitions. Word has length 121 [2021-11-03 05:41:52,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:52,879 INFO L470 AbstractCegarLoop]: Abstraction has 9131 states and 11789 transitions. [2021-11-03 05:41:52,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2021-11-03 05:41:52,879 INFO L276 IsEmpty]: Start isEmpty. Operand 9131 states and 11789 transitions. [2021-11-03 05:41:52,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-03 05:41:52,882 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:52,882 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:52,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:53,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:53,099 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:41:53,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:53,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1671219754, now seen corresponding path program 1 times [2021-11-03 05:41:53,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:53,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301729274] [2021-11-03 05:41:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:53,101 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:53,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:53,103 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:53,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:41:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:54,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 05:41:54,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:54,800 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:54,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:55,188 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:55,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301729274] [2021-11-03 05:41:55,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301729274] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:55,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:55,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-11-03 05:41:55,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877446698] [2021-11-03 05:41:55,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:41:55,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:55,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:41:55,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:41:55,191 INFO L87 Difference]: Start difference. First operand 9131 states and 11789 transitions. Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 8 states have internal predecessors, (128), 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) [2021-11-03 05:41:59,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:59,717 INFO L93 Difference]: Finished difference Result 35121 states and 45480 transitions. [2021-11-03 05:41:59,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:41:59,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 8 states have internal predecessors, (128), 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 126 [2021-11-03 05:41:59,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:59,817 INFO L225 Difference]: With dead ends: 35121 [2021-11-03 05:41:59,817 INFO L226 Difference]: Without dead ends: 26399 [2021-11-03 05:41:59,836 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-11-03 05:41:59,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26399 states. [2021-11-03 05:42:00,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26399 to 9155. [2021-11-03 05:42:00,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9155 states, 9140 states have (on average 1.2924507658643325) internal successors, (11813), 9154 states have internal predecessors, (11813), 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) [2021-11-03 05:42:00,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9155 states to 9155 states and 11813 transitions. [2021-11-03 05:42:00,784 INFO L78 Accepts]: Start accepts. Automaton has 9155 states and 11813 transitions. Word has length 126 [2021-11-03 05:42:00,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:00,785 INFO L470 AbstractCegarLoop]: Abstraction has 9155 states and 11813 transitions. [2021-11-03 05:42:00,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 8 states have internal predecessors, (128), 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) [2021-11-03 05:42:00,786 INFO L276 IsEmpty]: Start isEmpty. Operand 9155 states and 11813 transitions. [2021-11-03 05:42:00,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-03 05:42:00,789 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:00,789 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:00,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:01,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:01,003 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:42:01,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:01,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1222708526, now seen corresponding path program 1 times [2021-11-03 05:42:01,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:01,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339623365] [2021-11-03 05:42:01,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:01,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:01,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:01,006 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:01,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:42:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:02,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:42:02,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:03,077 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:42:03,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:42:04,010 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:04,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339623365] [2021-11-03 05:42:04,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339623365] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:04,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:04,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:42:04,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506838937] [2021-11-03 05:42:04,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:42:04,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:04,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:42:04,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:42:04,013 INFO L87 Difference]: Start difference. First operand 9155 states and 11813 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2021-11-03 05:42:04,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:04,911 INFO L93 Difference]: Finished difference Result 9155 states and 11813 transitions. [2021-11-03 05:42:04,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:42:04,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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 126 [2021-11-03 05:42:04,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:04,930 INFO L225 Difference]: With dead ends: 9155 [2021-11-03 05:42:04,930 INFO L226 Difference]: Without dead ends: 9149 [2021-11-03 05:42:04,933 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:42:04,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9149 states. [2021-11-03 05:42:05,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9149 to 9149. [2021-11-03 05:42:05,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9149 states, 9137 states have (on average 1.2922184524460982) internal successors, (11807), 9148 states have internal predecessors, (11807), 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) [2021-11-03 05:42:05,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9149 states to 9149 states and 11807 transitions. [2021-11-03 05:42:05,519 INFO L78 Accepts]: Start accepts. Automaton has 9149 states and 11807 transitions. Word has length 126 [2021-11-03 05:42:05,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:05,519 INFO L470 AbstractCegarLoop]: Abstraction has 9149 states and 11807 transitions. [2021-11-03 05:42:05,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2021-11-03 05:42:05,520 INFO L276 IsEmpty]: Start isEmpty. Operand 9149 states and 11807 transitions. [2021-11-03 05:42:05,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-03 05:42:05,522 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:05,523 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:05,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:05,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:05,739 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:42:05,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:05,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1797989871, now seen corresponding path program 1 times [2021-11-03 05:42:05,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:05,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183326831] [2021-11-03 05:42:05,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:05,740 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:05,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:05,741 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:05,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:42:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:06,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:42:06,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:07,850 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:42:07,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:08,772 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:42:08,773 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:08,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183326831] [2021-11-03 05:42:08,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183326831] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:08,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:08,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:42:08,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996864569] [2021-11-03 05:42:08,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:42:08,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:08,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:42:08,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:42:08,774 INFO L87 Difference]: Start difference. First operand 9149 states and 11807 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2021-11-03 05:42:09,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:09,355 INFO L93 Difference]: Finished difference Result 9149 states and 11807 transitions. [2021-11-03 05:42:09,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:42:09,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 128 [2021-11-03 05:42:09,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:09,376 INFO L225 Difference]: With dead ends: 9149 [2021-11-03 05:42:09,376 INFO L226 Difference]: Without dead ends: 9143 [2021-11-03 05:42:09,379 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:42:09,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9143 states. [2021-11-03 05:42:10,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9143 to 9143. [2021-11-03 05:42:10,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9143 states, 9134 states have (on average 1.2919859864243486) internal successors, (11801), 9142 states have internal predecessors, (11801), 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) [2021-11-03 05:42:10,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9143 states to 9143 states and 11801 transitions. [2021-11-03 05:42:10,077 INFO L78 Accepts]: Start accepts. Automaton has 9143 states and 11801 transitions. Word has length 128 [2021-11-03 05:42:10,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:10,077 INFO L470 AbstractCegarLoop]: Abstraction has 9143 states and 11801 transitions. [2021-11-03 05:42:10,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2021-11-03 05:42:10,077 INFO L276 IsEmpty]: Start isEmpty. Operand 9143 states and 11801 transitions. [2021-11-03 05:42:10,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-03 05:42:10,080 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:10,081 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:10,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:10,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:10,304 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:42:10,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:10,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1291256972, now seen corresponding path program 1 times [2021-11-03 05:42:10,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:10,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114376760] [2021-11-03 05:42:10,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:10,305 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:10,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:10,306 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:10,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:42:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:11,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:42:11,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:12,443 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:42:12,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:42:13,333 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:13,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114376760] [2021-11-03 05:42:13,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114376760] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:13,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:13,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:42:13,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54293354] [2021-11-03 05:42:13,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:42:13,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:13,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:42:13,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:42:13,336 INFO L87 Difference]: Start difference. First operand 9143 states and 11801 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2021-11-03 05:42:13,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:13,933 INFO L93 Difference]: Finished difference Result 9143 states and 11801 transitions. [2021-11-03 05:42:13,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:42:13,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 130 [2021-11-03 05:42:13,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:13,950 INFO L225 Difference]: With dead ends: 9143 [2021-11-03 05:42:13,950 INFO L226 Difference]: Without dead ends: 9097 [2021-11-03 05:42:13,954 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:42:13,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9097 states. [2021-11-03 05:42:14,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9097 to 4933. [2021-11-03 05:42:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4933 states, 4927 states have (on average 1.2790744875177593) internal successors, (6302), 4932 states have internal predecessors, (6302), 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) [2021-11-03 05:42:14,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4933 states to 4933 states and 6302 transitions. [2021-11-03 05:42:14,412 INFO L78 Accepts]: Start accepts. Automaton has 4933 states and 6302 transitions. Word has length 130 [2021-11-03 05:42:14,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:14,412 INFO L470 AbstractCegarLoop]: Abstraction has 4933 states and 6302 transitions. [2021-11-03 05:42:14,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2021-11-03 05:42:14,413 INFO L276 IsEmpty]: Start isEmpty. Operand 4933 states and 6302 transitions. [2021-11-03 05:42:14,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-03 05:42:14,421 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:14,421 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:14,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:14,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:14,635 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:42:14,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:14,635 INFO L85 PathProgramCache]: Analyzing trace with hash 267666998, now seen corresponding path program 1 times [2021-11-03 05:42:14,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:14,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300200174] [2021-11-03 05:42:14,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:14,637 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:14,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:14,637 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:14,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:42:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:16,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:42:16,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:16,539 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:16,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:16,957 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:16,957 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:16,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300200174] [2021-11-03 05:42:16,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300200174] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:16,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:16,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:42:16,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964544027] [2021-11-03 05:42:16,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:42:16,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:16,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:42:16,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:42:16,959 INFO L87 Difference]: Start difference. First operand 4933 states and 6302 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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) [2021-11-03 05:42:19,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:19,997 INFO L93 Difference]: Finished difference Result 17785 states and 22924 transitions. [2021-11-03 05:42:19,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:42:19,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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 168 [2021-11-03 05:42:19,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:20,012 INFO L225 Difference]: With dead ends: 17785 [2021-11-03 05:42:20,012 INFO L226 Difference]: Without dead ends: 13261 [2021-11-03 05:42:20,019 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:42:20,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13261 states. [2021-11-03 05:42:21,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13261 to 13237. [2021-11-03 05:42:21,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13237 states, 13231 states have (on average 1.2889426347214874) internal successors, (17054), 13236 states have internal predecessors, (17054), 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) [2021-11-03 05:42:21,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13237 states to 13237 states and 17054 transitions. [2021-11-03 05:42:21,173 INFO L78 Accepts]: Start accepts. Automaton has 13237 states and 17054 transitions. Word has length 168 [2021-11-03 05:42:21,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:21,174 INFO L470 AbstractCegarLoop]: Abstraction has 13237 states and 17054 transitions. [2021-11-03 05:42:21,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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) [2021-11-03 05:42:21,174 INFO L276 IsEmpty]: Start isEmpty. Operand 13237 states and 17054 transitions. [2021-11-03 05:42:21,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-03 05:42:21,185 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:21,185 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:21,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:21,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:21,407 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:42:21,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:21,407 INFO L85 PathProgramCache]: Analyzing trace with hash 358846585, now seen corresponding path program 1 times [2021-11-03 05:42:21,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:21,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107320366] [2021-11-03 05:42:21,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:21,409 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:21,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:21,417 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:21,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:42:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:22,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-03 05:42:22,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:24,099 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 05:42:24,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:24,751 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 05:42:24,751 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:24,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107320366] [2021-11-03 05:42:24,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107320366] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:24,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:24,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 15 [2021-11-03 05:42:24,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629078979] [2021-11-03 05:42:24,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-03 05:42:24,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:24,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-03 05:42:24,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-11-03 05:42:24,753 INFO L87 Difference]: Start difference. First operand 13237 states and 17054 transitions. Second operand has 15 states, 15 states have (on average 12.266666666666667) internal successors, (184), 15 states have internal predecessors, (184), 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) [2021-11-03 05:42:40,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:40,562 INFO L93 Difference]: Finished difference Result 60137 states and 77520 transitions. [2021-11-03 05:42:40,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-03 05:42:40,563 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.266666666666667) internal successors, (184), 15 states have internal predecessors, (184), 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 184 [2021-11-03 05:42:40,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:40,617 INFO L225 Difference]: With dead ends: 60137 [2021-11-03 05:42:40,617 INFO L226 Difference]: Without dead ends: 46141 [2021-11-03 05:42:40,634 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=718, Invalid=2474, Unknown=0, NotChecked=0, Total=3192 [2021-11-03 05:42:40,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46141 states. [2021-11-03 05:42:42,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46141 to 21431. [2021-11-03 05:42:42,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21431 states, 21425 states have (on average 1.2900350058343057) internal successors, (27639), 21430 states have internal predecessors, (27639), 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) [2021-11-03 05:42:42,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21431 states to 21431 states and 27639 transitions. [2021-11-03 05:42:42,657 INFO L78 Accepts]: Start accepts. Automaton has 21431 states and 27639 transitions. Word has length 184 [2021-11-03 05:42:42,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:42,657 INFO L470 AbstractCegarLoop]: Abstraction has 21431 states and 27639 transitions. [2021-11-03 05:42:42,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.266666666666667) internal successors, (184), 15 states have internal predecessors, (184), 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) [2021-11-03 05:42:42,657 INFO L276 IsEmpty]: Start isEmpty. Operand 21431 states and 27639 transitions. [2021-11-03 05:42:42,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-03 05:42:42,668 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:42,669 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:42,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:42,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:42,895 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:42:42,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:42,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1671017649, now seen corresponding path program 1 times [2021-11-03 05:42:42,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:42,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705611189] [2021-11-03 05:42:42,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:42,897 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:42,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:42,897 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:42,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:42:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:44,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:42:44,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:44,926 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-03 05:42:44,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:45,378 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-03 05:42:45,378 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:45,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705611189] [2021-11-03 05:42:45,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705611189] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:45,378 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:45,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:42:45,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082790312] [2021-11-03 05:42:45,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:42:45,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:45,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:42:45,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:42:45,380 INFO L87 Difference]: Start difference. First operand 21431 states and 27639 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2021-11-03 05:42:50,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:50,302 INFO L93 Difference]: Finished difference Result 51242 states and 66318 transitions. [2021-11-03 05:42:50,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:42:50,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 187 [2021-11-03 05:42:50,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:50,344 INFO L225 Difference]: With dead ends: 51242 [2021-11-03 05:42:50,344 INFO L226 Difference]: Without dead ends: 30220 [2021-11-03 05:42:50,368 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:42:50,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30220 states. [2021-11-03 05:42:52,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30220 to 30203. [2021-11-03 05:42:52,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30203 states, 30197 states have (on average 1.2908235917475246) internal successors, (38979), 30202 states have internal predecessors, (38979), 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) [2021-11-03 05:42:52,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30203 states to 30203 states and 38979 transitions. [2021-11-03 05:42:52,945 INFO L78 Accepts]: Start accepts. Automaton has 30203 states and 38979 transitions. Word has length 187 [2021-11-03 05:42:52,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:52,945 INFO L470 AbstractCegarLoop]: Abstraction has 30203 states and 38979 transitions. [2021-11-03 05:42:52,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2021-11-03 05:42:52,945 INFO L276 IsEmpty]: Start isEmpty. Operand 30203 states and 38979 transitions. [2021-11-03 05:42:52,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-03 05:42:52,953 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:52,953 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:52,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:53,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:53,167 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:42:53,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:53,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1841749921, now seen corresponding path program 1 times [2021-11-03 05:42:53,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:53,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684308599] [2021-11-03 05:42:53,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:53,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:53,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:53,170 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:53,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 05:42:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:54,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:42:54,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:55,322 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-03 05:42:55,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:55,740 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-03 05:42:55,740 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:55,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684308599] [2021-11-03 05:42:55,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684308599] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:55,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:55,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:42:55,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015420260] [2021-11-03 05:42:55,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:42:55,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:55,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:42:55,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:42:55,742 INFO L87 Difference]: Start difference. First operand 30203 states and 38979 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2021-11-03 05:43:01,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:43:01,912 INFO L93 Difference]: Finished difference Result 72563 states and 93989 transitions. [2021-11-03 05:43:01,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:43:01,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 188 [2021-11-03 05:43:01,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:43:01,967 INFO L225 Difference]: With dead ends: 72563 [2021-11-03 05:43:01,967 INFO L226 Difference]: Without dead ends: 42769 [2021-11-03 05:43:01,983 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:43:02,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42769 states. [2021-11-03 05:43:05,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42769 to 42746. [2021-11-03 05:43:05,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42746 states, 42740 states have (on average 1.2918577445016377) internal successors, (55214), 42745 states have internal predecessors, (55214), 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) [2021-11-03 05:43:05,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42746 states to 42746 states and 55214 transitions. [2021-11-03 05:43:05,752 INFO L78 Accepts]: Start accepts. Automaton has 42746 states and 55214 transitions. Word has length 188 [2021-11-03 05:43:05,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:43:05,753 INFO L470 AbstractCegarLoop]: Abstraction has 42746 states and 55214 transitions. [2021-11-03 05:43:05,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2021-11-03 05:43:05,753 INFO L276 IsEmpty]: Start isEmpty. Operand 42746 states and 55214 transitions. [2021-11-03 05:43:05,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-03 05:43:05,759 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:43:05,760 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:43:05,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-03 05:43:05,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:43:05,971 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:43:05,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:43:05,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1607675008, now seen corresponding path program 1 times [2021-11-03 05:43:05,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:43:05,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287155085] [2021-11-03 05:43:05,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:43:05,973 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:43:05,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:43:05,973 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:43:05,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 05:43:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:43:07,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:43:07,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:43:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-03 05:43:08,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:43:08,676 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-03 05:43:08,676 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:43:08,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287155085] [2021-11-03 05:43:08,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287155085] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:43:08,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:43:08,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:43:08,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431401783] [2021-11-03 05:43:08,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:43:08,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:43:08,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:43:08,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:43:08,678 INFO L87 Difference]: Start difference. First operand 42746 states and 55214 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-11-03 05:43:15,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:43:15,975 INFO L93 Difference]: Finished difference Result 100130 states and 129676 transitions. [2021-11-03 05:43:15,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:43:15,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 189 [2021-11-03 05:43:15,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:43:16,056 INFO L225 Difference]: With dead ends: 100130 [2021-11-03 05:43:16,056 INFO L226 Difference]: Without dead ends: 57793 [2021-11-03 05:43:16,092 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:43:16,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57793 states. [2021-11-03 05:43:20,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57793 to 57773. [2021-11-03 05:43:20,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57773 states, 57767 states have (on average 1.2902522201256772) internal successors, (74534), 57772 states have internal predecessors, (74534), 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) [2021-11-03 05:43:20,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57773 states to 57773 states and 74534 transitions. [2021-11-03 05:43:20,965 INFO L78 Accepts]: Start accepts. Automaton has 57773 states and 74534 transitions. Word has length 189 [2021-11-03 05:43:20,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:43:20,965 INFO L470 AbstractCegarLoop]: Abstraction has 57773 states and 74534 transitions. [2021-11-03 05:43:20,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-11-03 05:43:20,965 INFO L276 IsEmpty]: Start isEmpty. Operand 57773 states and 74534 transitions. [2021-11-03 05:43:20,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-03 05:43:20,974 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:43:20,974 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:43:20,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 05:43:21,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:43:21,175 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 05:43:21,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:43:21,176 INFO L85 PathProgramCache]: Analyzing trace with hash 836582810, now seen corresponding path program 1 times [2021-11-03 05:43:21,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:43:21,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042470759] [2021-11-03 05:43:21,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:43:21,177 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:43:21,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:43:21,179 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:43:21,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619609a4-315c-483d-81f0-cd52f938c5c5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 05:43:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:43:23,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 1263 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:43:23,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:43:23,639 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-03 05:43:23,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:43:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-03 05:43:24,086 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:43:24,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042470759] [2021-11-03 05:43:24,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042470759] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:43:24,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:43:24,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:43:24,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734123660] [2021-11-03 05:43:24,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:43:24,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:43:24,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:43:24,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:43:24,088 INFO L87 Difference]: Start difference. First operand 57773 states and 74534 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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)