./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:55:41,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:55:41,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:55:41,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:55:41,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:55:41,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:55:41,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:55:41,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:55:41,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:55:41,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:55:41,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:55:41,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:55:41,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:55:41,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:55:41,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:55:41,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:55:41,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:55:41,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:55:41,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:55:41,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:55:41,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:55:41,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:55:41,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:55:41,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:55:41,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:55:41,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:55:41,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:55:41,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:55:41,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:55:41,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:55:41,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:55:41,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:55:41,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:55:41,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:55:41,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:55:41,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:55:41,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:55:41,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:55:41,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:55:41,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:55:41,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:55:41,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 00:55:41,407 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:55:41,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:55:41,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:55:41,411 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:55:41,411 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:55:41,412 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:55:41,412 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:55:41,412 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:55:41,412 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:55:41,413 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:55:41,414 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:55:41,414 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:55:41,414 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:55:41,415 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:55:41,415 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:55:41,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:55:41,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:55:41,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:55:41,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:55:41,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:55:41,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:55:41,417 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:55:41,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:55:41,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:55:41,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:55:41,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:55:41,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:55:41,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:55:41,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:55:41,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:55:41,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:55:41,421 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:55:41,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:55:41,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:55:41,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:55:41,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:55:41,422 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_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 [2021-11-07 00:55:41,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:55:41,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:55:41,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:55:41,739 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:55:41,740 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:55:41,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-07 00:55:41,836 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/data/a7c5ab11d/bf5435b8f72f4b5b9cbe38c432107c6f/FLAG6d926283d [2021-11-07 00:55:42,819 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:55:42,820 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-07 00:55:42,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/data/a7c5ab11d/bf5435b8f72f4b5b9cbe38c432107c6f/FLAG6d926283d [2021-11-07 00:55:43,256 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/data/a7c5ab11d/bf5435b8f72f4b5b9cbe38c432107c6f [2021-11-07 00:55:43,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:55:43,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:55:43,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:55:43,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:55:43,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:55:43,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:55:43" (1/1) ... [2021-11-07 00:55:43,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b5a334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:43, skipping insertion in model container [2021-11-07 00:55:43,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:55:43" (1/1) ... [2021-11-07 00:55:43,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:55:43,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:55:45,174 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:55:45,271 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:55:45,272 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:55:46,328 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2021-11-07 00:55:46,331 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2021-11-07 00:55:46,332 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2021-11-07 00:55:46,332 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2021-11-07 00:55:46,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:55:46,394 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 00:55:46,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6ef80f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:46, skipping insertion in model container [2021-11-07 00:55:46,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:55:46,395 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:55:46,399 INFO L168 Benchmark]: Toolchain (without parser) took 3134.16 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 73.0 MB in the beginning and 58.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 72.2 MB. Max. memory is 16.1 GB. [2021-11-07 00:55:46,400 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:55:46,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3117.24 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 72.6 MB in the beginning and 58.0 MB in the end (delta: 14.6 MB). Peak memory consumption was 72.2 MB. Max. memory is 16.1 GB. [2021-11-07 00:55:46,404 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3117.24 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 72.6 MB in the beginning and 58.0 MB in the end (delta: 14.6 MB). Peak memory consumption was 72.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6417]: 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_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:55:48,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:55:48,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:55:48,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:55:48,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:55:48,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:55:48,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:55:48,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:55:48,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:55:48,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:55:48,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:55:48,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:55:48,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:55:48,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:55:48,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:55:48,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:55:48,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:55:48,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:55:48,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:55:48,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:55:48,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:55:48,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:55:48,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:55:48,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:55:48,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:55:48,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:55:48,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:55:48,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:55:48,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:55:48,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:55:48,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:55:48,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:55:48,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:55:48,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:55:48,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:55:48,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:55:48,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:55:48,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:55:48,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:55:48,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:55:48,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:55:48,822 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 00:55:48,857 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:55:48,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:55:48,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:55:48,859 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:55:48,860 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:55:48,860 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:55:48,861 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:55:48,861 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:55:48,862 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:55:48,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:55:48,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:55:48,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:55:48,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:55:48,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:55:48,865 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:55:48,865 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:55:48,865 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:55:48,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:55:48,866 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:55:48,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:55:48,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:55:48,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:55:48,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:55:48,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:55:48,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:55:48,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:55:48,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:55:48,868 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:55:48,869 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:55:48,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:55:48,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:55:48,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:55:48,869 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_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dda3f7c080a6e7302d861accabde0bee64e4cb5e7a0fb77650fdd775ecd7779 [2021-11-07 00:55:49,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:55:49,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:55:49,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:55:49,405 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:55:49,406 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:55:49,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-07 00:55:49,476 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/data/dbb9a8f88/70aa69e272fe4928834bc3097eb46a05/FLAGf848e60d0 [2021-11-07 00:55:50,573 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:55:50,573 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-07 00:55:50,674 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/data/dbb9a8f88/70aa69e272fe4928834bc3097eb46a05/FLAGf848e60d0 [2021-11-07 00:55:50,927 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/data/dbb9a8f88/70aa69e272fe4928834bc3097eb46a05 [2021-11-07 00:55:50,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:55:50,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:55:50,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:55:50,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:55:50,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:55:50,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:55:50" (1/1) ... [2021-11-07 00:55:50,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9961a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:50, skipping insertion in model container [2021-11-07 00:55:50,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:55:50" (1/1) ... [2021-11-07 00:55:50,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:55:51,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:55:54,597 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2021-11-07 00:55:54,600 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2021-11-07 00:55:54,601 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2021-11-07 00:55:54,601 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2021-11-07 00:55:54,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:55:54,707 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:55:54,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:55:55,207 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2021-11-07 00:55:55,208 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2021-11-07 00:55:55,208 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2021-11-07 00:55:55,209 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2021-11-07 00:55:55,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:55:55,300 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:55:55,693 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334651,334664] [2021-11-07 00:55:55,693 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334820,334833] [2021-11-07 00:55:55,694 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[334987,335000] [2021-11-07 00:55:55,694 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_8ba84280-d768-42b5-8d76-37154ef91555/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335155,335168] [2021-11-07 00:55:55,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:55:56,048 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:55:56,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:56 WrapperNode [2021-11-07 00:55:56,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:55:56,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:55:56,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:55:56,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:55:56,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:56" (1/1) ... [2021-11-07 00:55:56,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:56" (1/1) ... [2021-11-07 00:55:57,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:55:57,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:55:57,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:55:57,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:55:57,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:56" (1/1) ... [2021-11-07 00:55:57,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:56" (1/1) ... [2021-11-07 00:55:57,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:56" (1/1) ... [2021-11-07 00:55:57,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:56" (1/1) ... [2021-11-07 00:55:58,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:56" (1/1) ... [2021-11-07 00:55:58,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:56" (1/1) ... [2021-11-07 00:55:58,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:56" (1/1) ... [2021-11-07 00:55:58,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:55:58,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:55:58,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:55:58,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:55:58,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:56" (1/1) ... [2021-11-07 00:55:58,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:55:58,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:55:58,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:55:58,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:55:58,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:55:58,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:55:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 00:55:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 00:55:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:55:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:55:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 00:55:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 00:55:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 00:55:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 00:55:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:55:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:55:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 00:55:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 00:55:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:55:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 00:55:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 00:55:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 00:55:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:55:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:55:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 00:55:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 00:55:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 00:55:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:55:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:55:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 00:55:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 00:55:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 00:55:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 00:57:56,965 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-07 00:57:56,965 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-07 00:57:56,966 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 00:57:56,966 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-07 00:57:56,968 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 00:57:56,969 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 00:57:57,026 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:57:57,026 INFO L299 CfgBuilder]: Removed 6998 assume(true) statements. [2021-11-07 00:57:57,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:57:57 BoogieIcfgContainer [2021-11-07 00:57:57,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:57:57,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:57:57,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:57:57,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:57:57,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:55:50" (1/3) ... [2021-11-07 00:57:57,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e39885e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:57:57, skipping insertion in model container [2021-11-07 00:57:57,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:56" (2/3) ... [2021-11-07 00:57:57,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e39885e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:57:57, skipping insertion in model container [2021-11-07 00:57:57,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:57:57" (3/3) ... [2021-11-07 00:57:57,043 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-07 00:57:57,048 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:57:57,049 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2021-11-07 00:57:57,121 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:57:57,126 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 00:57:57,127 INFO L340 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2021-11-07 00:57:57,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 5901 states, 5823 states have (on average 1.3068864846299157) internal successors, (7610), 5900 states have internal predecessors, (7610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:57:57,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 00:57:57,233 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:57,234 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:57,234 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 00:57:57,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:57,240 INFO L85 PathProgramCache]: Analyzing trace with hash -481796582, now seen corresponding path program 1 times [2021-11-07 00:57:57,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:57,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75540499] [2021-11-07 00:57:57,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:57,258 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:57,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:57,261 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:57,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:57:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:58,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:57:58,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:58,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:58,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:59,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:59,080 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:59,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75540499] [2021-11-07 00:57:59,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75540499] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:59,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:57:59,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:57:59,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177839195] [2021-11-07 00:57:59,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:57:59,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:59,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:57:59,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:57:59,121 INFO L87 Difference]: Start difference. First operand has 5901 states, 5823 states have (on average 1.3068864846299157) internal successors, (7610), 5900 states have internal predecessors, (7610), 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 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:02,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:58:02,472 INFO L93 Difference]: Finished difference Result 23011 states and 29686 transitions. [2021-11-07 00:58:02,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:58:02,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-07 00:58:02,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:58:02,611 INFO L225 Difference]: With dead ends: 23011 [2021-11-07 00:58:02,612 INFO L226 Difference]: Without dead ends: 16748 [2021-11-07 00:58:02,638 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:58:02,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16748 states. [2021-11-07 00:58:03,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16748 to 16532. [2021-11-07 00:58:03,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16532 states, 16454 states have (on average 1.2632186702321624) internal successors, (20785), 16531 states have internal predecessors, (20785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:03,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16532 states to 16532 states and 20785 transitions. [2021-11-07 00:58:03,534 INFO L78 Accepts]: Start accepts. Automaton has 16532 states and 20785 transitions. Word has length 45 [2021-11-07 00:58:03,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:58:03,538 INFO L470 AbstractCegarLoop]: Abstraction has 16532 states and 20785 transitions. [2021-11-07 00:58:03,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:03,539 INFO L276 IsEmpty]: Start isEmpty. Operand 16532 states and 20785 transitions. [2021-11-07 00:58:03,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 00:58:03,548 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:58:03,549 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] [2021-11-07 00:58:03,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:03,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:03,766 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 00:58:03,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:58:03,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1445610242, now seen corresponding path program 1 times [2021-11-07 00:58:03,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:58:03,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412911909] [2021-11-07 00:58:03,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:58:03,771 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:58:03,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:58:03,772 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:58:03,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:58:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:58:05,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:58:05,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:58:05,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:05,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:58:05,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:05,495 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:58:05,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412911909] [2021-11-07 00:58:05,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412911909] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:58:05,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:58:05,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:58:05,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750788516] [2021-11-07 00:58:05,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:58:05,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:58:05,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:58:05,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:58:05,498 INFO L87 Difference]: Start difference. First operand 16532 states and 20785 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:09,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:58:09,967 INFO L93 Difference]: Finished difference Result 59691 states and 75228 transitions. [2021-11-07 00:58:09,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:58:09,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 48 [2021-11-07 00:58:09,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:58:10,193 INFO L225 Difference]: With dead ends: 59691 [2021-11-07 00:58:10,193 INFO L226 Difference]: Without dead ends: 43243 [2021-11-07 00:58:10,240 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:58:10,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43243 states. [2021-11-07 00:58:12,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43243 to 41143. [2021-11-07 00:58:12,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41143 states, 41065 states have (on average 1.2710093753804943) internal successors, (52194), 41142 states have internal predecessors, (52194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:12,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41143 states to 41143 states and 52194 transitions. [2021-11-07 00:58:12,594 INFO L78 Accepts]: Start accepts. Automaton has 41143 states and 52194 transitions. Word has length 48 [2021-11-07 00:58:12,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:58:12,595 INFO L470 AbstractCegarLoop]: Abstraction has 41143 states and 52194 transitions. [2021-11-07 00:58:12,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:12,595 INFO L276 IsEmpty]: Start isEmpty. Operand 41143 states and 52194 transitions. [2021-11-07 00:58:12,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 00:58:12,600 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:58:12,601 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] [2021-11-07 00:58:12,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:12,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:12,826 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 00:58:12,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:58:12,827 INFO L85 PathProgramCache]: Analyzing trace with hash -34310452, now seen corresponding path program 1 times [2021-11-07 00:58:12,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:58:12,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005411236] [2021-11-07 00:58:12,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:58:12,829 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:58:12,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:58:13,042 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:58:13,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 00:58:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:58:14,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:58:14,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:58:15,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:15,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:58:15,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:15,534 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:58:15,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005411236] [2021-11-07 00:58:15,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005411236] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:58:15,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:58:15,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 00:58:15,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849770044] [2021-11-07 00:58:15,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:58:15,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:58:15,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:58:15,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:58:15,537 INFO L87 Difference]: Start difference. First operand 41143 states and 52194 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:20,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:58:20,373 INFO L93 Difference]: Finished difference Result 109528 states and 138849 transitions. [2021-11-07 00:58:20,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:58:20,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2021-11-07 00:58:20,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:58:20,601 INFO L225 Difference]: With dead ends: 109528 [2021-11-07 00:58:20,601 INFO L226 Difference]: Without dead ends: 68469 [2021-11-07 00:58:20,690 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:58:20,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68469 states. [2021-11-07 00:58:23,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68469 to 66325. [2021-11-07 00:58:23,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66325 states, 66247 states have (on average 1.2714236116352438) internal successors, (84228), 66324 states have internal predecessors, (84228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:23,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66325 states to 66325 states and 84228 transitions. [2021-11-07 00:58:23,631 INFO L78 Accepts]: Start accepts. Automaton has 66325 states and 84228 transitions. Word has length 53 [2021-11-07 00:58:23,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:58:23,633 INFO L470 AbstractCegarLoop]: Abstraction has 66325 states and 84228 transitions. [2021-11-07 00:58:23,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:23,635 INFO L276 IsEmpty]: Start isEmpty. Operand 66325 states and 84228 transitions. [2021-11-07 00:58:23,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 00:58:23,638 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:58:23,638 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] [2021-11-07 00:58:23,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:23,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:23,862 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 00:58:23,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:58:23,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1062801472, now seen corresponding path program 1 times [2021-11-07 00:58:23,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:58:23,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763959084] [2021-11-07 00:58:23,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:58:23,865 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:58:23,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:58:23,866 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:58:23,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 00:58:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:58:25,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:58:25,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:58:25,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:25,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:58:25,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:25,885 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:58:25,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763959084] [2021-11-07 00:58:25,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763959084] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:58:25,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:58:25,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:58:25,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746431450] [2021-11-07 00:58:25,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:58:25,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:58:25,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:58:25,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:58:25,887 INFO L87 Difference]: Start difference. First operand 66325 states and 84228 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:30,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:58:30,605 INFO L93 Difference]: Finished difference Result 132783 states and 169181 transitions. [2021-11-07 00:58:30,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:58:30,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 53 [2021-11-07 00:58:30,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:58:30,782 INFO L225 Difference]: With dead ends: 132783 [2021-11-07 00:58:30,783 INFO L226 Difference]: Without dead ends: 66542 [2021-11-07 00:58:30,907 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:58:30,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66542 states. [2021-11-07 00:58:33,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66542 to 66282. [2021-11-07 00:58:33,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66282 states, 66204 states have (on average 1.2781251888103438) internal successors, (84617), 66281 states have internal predecessors, (84617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:33,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66282 states to 66282 states and 84617 transitions. [2021-11-07 00:58:33,687 INFO L78 Accepts]: Start accepts. Automaton has 66282 states and 84617 transitions. Word has length 53 [2021-11-07 00:58:33,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:58:33,688 INFO L470 AbstractCegarLoop]: Abstraction has 66282 states and 84617 transitions. [2021-11-07 00:58:33,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:33,689 INFO L276 IsEmpty]: Start isEmpty. Operand 66282 states and 84617 transitions. [2021-11-07 00:58:33,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 00:58:33,690 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:58:33,691 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:58:33,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:33,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:33,906 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 00:58:33,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:58:33,907 INFO L85 PathProgramCache]: Analyzing trace with hash -2036750461, now seen corresponding path program 1 times [2021-11-07 00:58:33,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:58:33,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [593418948] [2021-11-07 00:58:33,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:58:33,909 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:58:33,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:58:33,911 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:58:33,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 00:58:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:58:35,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:58:35,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:58:36,036 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 00:58:36,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:58:36,628 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 00:58:36,628 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:58:36,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [593418948] [2021-11-07 00:58:36,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [593418948] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:58:36,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:58:36,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:58:36,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128989470] [2021-11-07 00:58:36,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:58:36,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:58:36,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:58:36,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:58:36,632 INFO L87 Difference]: Start difference. First operand 66282 states and 84617 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:39,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:58:39,233 INFO L93 Difference]: Finished difference Result 66282 states and 84617 transitions. [2021-11-07 00:58:39,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 00:58:39,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 00:58:39,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:58:39,370 INFO L225 Difference]: With dead ends: 66282 [2021-11-07 00:58:39,370 INFO L226 Difference]: Without dead ends: 66278 [2021-11-07 00:58:39,388 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 00:58:39,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66278 states. [2021-11-07 00:58:41,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66278 to 66278. [2021-11-07 00:58:41,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66278 states, 66202 states have (on average 1.2781033805625208) internal successors, (84613), 66277 states have internal predecessors, (84613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:42,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66278 states to 66278 states and 84613 transitions. [2021-11-07 00:58:42,013 INFO L78 Accepts]: Start accepts. Automaton has 66278 states and 84613 transitions. Word has length 70 [2021-11-07 00:58:42,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:58:42,013 INFO L470 AbstractCegarLoop]: Abstraction has 66278 states and 84613 transitions. [2021-11-07 00:58:42,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:42,013 INFO L276 IsEmpty]: Start isEmpty. Operand 66278 states and 84613 transitions. [2021-11-07 00:58:42,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 00:58:42,014 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:58:42,015 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 00:58:42,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:42,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:42,230 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 00:58:42,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:58:42,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1188034950, now seen corresponding path program 1 times [2021-11-07 00:58:42,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:58:42,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048957136] [2021-11-07 00:58:42,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:58:42,233 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:58:42,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:58:42,234 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:58:42,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 00:58:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:58:43,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:58:43,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:58:44,181 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 00:58:44,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:58:44,699 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 00:58:44,699 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:58:44,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048957136] [2021-11-07 00:58:44,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048957136] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:58:44,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:58:44,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:58:44,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675727176] [2021-11-07 00:58:44,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:58:44,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:58:44,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:58:44,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:58:44,702 INFO L87 Difference]: Start difference. First operand 66278 states and 84613 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:47,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:58:47,569 INFO L93 Difference]: Finished difference Result 66278 states and 84613 transitions. [2021-11-07 00:58:47,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 00:58:47,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 72 [2021-11-07 00:58:47,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:58:47,700 INFO L225 Difference]: With dead ends: 66278 [2021-11-07 00:58:47,700 INFO L226 Difference]: Without dead ends: 66274 [2021-11-07 00:58:47,718 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 00:58:47,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66274 states. [2021-11-07 00:58:50,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66274 to 66274. [2021-11-07 00:58:50,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66274 states, 66200 states have (on average 1.2780815709969788) internal successors, (84609), 66273 states have internal predecessors, (84609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:50,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66274 states to 66274 states and 84609 transitions. [2021-11-07 00:58:50,450 INFO L78 Accepts]: Start accepts. Automaton has 66274 states and 84609 transitions. Word has length 72 [2021-11-07 00:58:50,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:58:50,451 INFO L470 AbstractCegarLoop]: Abstraction has 66274 states and 84609 transitions. [2021-11-07 00:58:50,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:58:50,452 INFO L276 IsEmpty]: Start isEmpty. Operand 66274 states and 84609 transitions. [2021-11-07 00:58:50,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 00:58:50,454 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:58:50,455 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 00:58:50,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:50,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:50,658 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 75 more)] === [2021-11-07 00:58:50,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:58:50,659 INFO L85 PathProgramCache]: Analyzing trace with hash -759572471, now seen corresponding path program 1 times [2021-11-07 00:58:50,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:58:50,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093563423] [2021-11-07 00:58:50,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:58:50,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:58:50,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:58:50,661 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:58:50,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba84280-d768-42b5-8d76-37154ef91555/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 00:58:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:58:51,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:58:51,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:58:52,445 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 00:58:52,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:58:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 00:58:52,912 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:58:52,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093563423] [2021-11-07 00:58:52,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093563423] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:58:52,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:58:52,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:58:52,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835091410] [2021-11-07 00:58:52,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:58:52,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:58:52,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:58:52,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:58:52,916 INFO L87 Difference]: Start difference. First operand 66274 states and 84609 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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)