./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e184773994bf5ba427e3ad6843df80bcf1aa90cb50c2ace36ee6ac9939c1f916 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:53:02,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:53:02,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:53:02,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:53:02,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:53:02,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:53:02,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:53:02,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:53:02,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:53:02,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:53:02,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:53:02,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:53:02,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:53:02,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:53:02,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:53:02,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:53:02,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:53:02,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:53:02,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:53:02,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:53:02,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:53:02,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:53:02,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:53:02,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:53:02,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:53:02,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:53:02,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:53:02,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:53:02,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:53:02,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:53:02,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:53:02,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:53:02,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:53:02,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:53:02,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:53:02,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:53:02,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:53:02,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:53:02,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:53:02,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:53:02,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:53:02,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:53:02,841 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:53:02,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:53:02,842 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:53:02,842 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:53:02,843 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:53:02,843 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:53:02,843 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:53:02,844 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:53:02,844 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:53:02,844 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:53:02,844 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:53:02,845 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:53:02,845 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:53:02,845 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:53:02,845 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:53:02,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:53:02,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:53:02,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:53:02,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:53:02,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:53:02,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:53:02,847 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:53:02,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:53:02,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:53:02,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:53:02,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:53:02,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:53:02,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:53:02,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:53:02,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:53:02,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:53:02,850 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:53:02,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:53:02,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:53:02,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:53:02,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:53:02,851 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_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e184773994bf5ba427e3ad6843df80bcf1aa90cb50c2ace36ee6ac9939c1f916 [2021-11-03 04:53:03,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:53:03,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:53:03,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:53:03,150 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:53:03,150 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:53:03,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-03 04:53:03,228 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/data/4dad0d349/eba3dc34774b40f5a620dbf6da43990d/FLAG07c7f0d5c [2021-11-03 04:53:04,212 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:53:04,213 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-03 04:53:04,260 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/data/4dad0d349/eba3dc34774b40f5a620dbf6da43990d/FLAG07c7f0d5c [2021-11-03 04:53:04,598 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/data/4dad0d349/eba3dc34774b40f5a620dbf6da43990d [2021-11-03 04:53:04,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:53:04,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:53:04,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:53:04,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:53:04,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:53:04,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:53:04" (1/1) ... [2021-11-03 04:53:04,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7919e9b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:04, skipping insertion in model container [2021-11-03 04:53:04,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:53:04" (1/1) ... [2021-11-03 04:53:04,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:53:04,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:53:06,623 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:53:06,627 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:53:06,880 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:53:06,884 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:53:06,937 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:53:06,938 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:53:07,904 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_9e22c7db-1120-4811-9778-a14c24f4834a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340444,340457] [2021-11-03 04:53:07,906 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_9e22c7db-1120-4811-9778-a14c24f4834a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340589,340602] [2021-11-03 04:53:07,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:53:07,961 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 04:53:07,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6cfdca44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:07, skipping insertion in model container [2021-11-03 04:53:07,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:53:07,962 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:53:07,964 INFO L168 Benchmark]: Toolchain (without parser) took 3361.45 ms. Allocated memory was 92.3 MB in the beginning and 151.0 MB in the end (delta: 58.7 MB). Free memory was 61.4 MB in the beginning and 71.9 MB in the end (delta: -10.5 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:53:07,965 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 92.3 MB. Free memory was 64.2 MB in the beginning and 64.2 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:53:07,967 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3359.11 ms. Allocated memory was 92.3 MB in the beginning and 151.0 MB in the end (delta: 58.7 MB). Free memory was 61.0 MB in the beginning and 71.9 MB in the end (delta: -10.8 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:53:07,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 92.3 MB. Free memory was 64.2 MB in the beginning and 64.2 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3359.11 ms. Allocated memory was 92.3 MB in the beginning and 151.0 MB in the end (delta: 58.7 MB). Free memory was 61.0 MB in the beginning and 71.9 MB in the end (delta: -10.8 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7450]: 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_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e184773994bf5ba427e3ad6843df80bcf1aa90cb50c2ace36ee6ac9939c1f916 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:53:10,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:53:10,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:53:10,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:53:10,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:53:10,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:53:10,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:53:10,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:53:10,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:53:10,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:53:10,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:53:10,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:53:10,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:53:10,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:53:10,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:53:10,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:53:10,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:53:10,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:53:10,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:53:10,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:53:10,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:53:10,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:53:10,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:53:10,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:53:10,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:53:10,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:53:10,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:53:10,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:53:10,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:53:10,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:53:10,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:53:10,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:53:10,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:53:10,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:53:10,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:53:10,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:53:10,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:53:10,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:53:10,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:53:10,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:53:10,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:53:10,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:53:10,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:53:10,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:53:10,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:53:10,516 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:53:10,516 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:53:10,516 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:53:10,516 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:53:10,517 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:53:10,517 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:53:10,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:53:10,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:53:10,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:53:10,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:53:10,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:53:10,520 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:53:10,520 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:53:10,520 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:53:10,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:53:10,521 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:53:10,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:53:10,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:53:10,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:53:10,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:53:10,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:53:10,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:53:10,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:53:10,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:53:10,523 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:53:10,523 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:53:10,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:53:10,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:53:10,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:53:10,524 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_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e184773994bf5ba427e3ad6843df80bcf1aa90cb50c2ace36ee6ac9939c1f916 [2021-11-03 04:53:10,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:53:10,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:53:10,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:53:10,933 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:53:10,934 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:53:10,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-03 04:53:11,008 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/data/8cfc6238f/371e0044e0cd41328845bbfed7ae200b/FLAG38f1f8861 [2021-11-03 04:53:12,132 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:53:12,133 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-03 04:53:12,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/data/8cfc6238f/371e0044e0cd41328845bbfed7ae200b/FLAG38f1f8861 [2021-11-03 04:53:12,386 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/data/8cfc6238f/371e0044e0cd41328845bbfed7ae200b [2021-11-03 04:53:12,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:53:12,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:53:12,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:53:12,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:53:12,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:53:12,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:53:12" (1/1) ... [2021-11-03 04:53:12,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b38bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:12, skipping insertion in model container [2021-11-03 04:53:12,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:53:12" (1/1) ... [2021-11-03 04:53:12,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:53:12,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:53:15,587 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_9e22c7db-1120-4811-9778-a14c24f4834a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340444,340457] [2021-11-03 04:53:15,591 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_9e22c7db-1120-4811-9778-a14c24f4834a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340589,340602] [2021-11-03 04:53:15,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:53:15,692 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:53:15,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:53:16,248 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_9e22c7db-1120-4811-9778-a14c24f4834a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340444,340457] [2021-11-03 04:53:16,249 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_9e22c7db-1120-4811-9778-a14c24f4834a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340589,340602] [2021-11-03 04:53:16,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:53:16,284 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:53:16,800 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_9e22c7db-1120-4811-9778-a14c24f4834a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340444,340457] [2021-11-03 04:53:16,801 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_9e22c7db-1120-4811-9778-a14c24f4834a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340589,340602] [2021-11-03 04:53:16,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:53:17,035 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:53:17,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:17 WrapperNode [2021-11-03 04:53:17,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:53:17,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:53:17,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:53:17,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:53:17,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:17" (1/1) ... [2021-11-03 04:53:17,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:17" (1/1) ... [2021-11-03 04:53:36,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:53:36,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:53:36,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:53:36,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:53:36,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:17" (1/1) ... [2021-11-03 04:53:36,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:17" (1/1) ... [2021-11-03 04:53:37,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:17" (1/1) ... [2021-11-03 04:53:37,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:17" (1/1) ... [2021-11-03 04:53:39,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:17" (1/1) ... [2021-11-03 04:53:40,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:17" (1/1) ... [2021-11-03 04:53:40,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:17" (1/1) ... [2021-11-03 04:53:41,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:53:41,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:53:41,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:53:41,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:53:41,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:17" (1/1) ... [2021-11-03 04:53:41,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:53:41,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:53:41,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:53:41,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:53:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-03 04:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 04:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 04:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 04:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 04:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:53:41,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:53:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:53:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:53:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:53:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 04:53:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 04:53:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 04:53:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:53:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:53:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:53:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:53:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 04:53:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:53:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:53:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 04:53:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 04:53:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 04:53:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 04:58:14,900 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_14_returnLabel: main_#res := 0bv32; [2021-11-03 04:58:14,905 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 04:58:14,906 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L9962: #t~ret1340 := main_#res; [2021-11-03 04:58:14,913 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-03 04:58:15,222 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:58:15,223 INFO L299 CfgBuilder]: Removed 44878 assume(true) statements. [2021-11-03 04:58:15,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:58:15 BoogieIcfgContainer [2021-11-03 04:58:15,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:58:15,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:58:15,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:58:15,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:58:15,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:53:12" (1/3) ... [2021-11-03 04:58:15,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f8184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:58:15, skipping insertion in model container [2021-11-03 04:58:15,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:53:17" (2/3) ... [2021-11-03 04:58:15,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f8184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:58:15, skipping insertion in model container [2021-11-03 04:58:15,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:58:15" (3/3) ... [2021-11-03 04:58:15,263 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-03 04:58:15,269 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:58:15,269 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-03 04:58:15,437 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:58:15,443 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:58:15,443 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-03 04:58:15,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 28720 states, 28704 states have (on average 1.2088559085841695) internal successors, (34699), 28719 states have internal predecessors, (34699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:15,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 04:58:15,873 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:15,874 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:58:15,875 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:58:15,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:15,881 INFO L85 PathProgramCache]: Analyzing trace with hash -221297839, now seen corresponding path program 1 times [2021-11-03 04:58:15,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:58:15,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130803677] [2021-11-03 04:58:15,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:15,910 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:58:15,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:58:15,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:58:15,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:58:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:20,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 1504 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:58:20,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:20,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:20,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:20,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:20,525 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:58:20,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130803677] [2021-11-03 04:58:20,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130803677] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:20,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:20,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:58:20,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654033652] [2021-11-03 04:58:20,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:58:20,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:58:20,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:58:20,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:58:20,591 INFO L87 Difference]: Start difference. First operand has 28720 states, 28704 states have (on average 1.2088559085841695) internal successors, (34699), 28719 states have internal predecessors, (34699), 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 2 states, 2 states have (on average 26.0) internal successors, (52), 2 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) [2021-11-03 04:58:21,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:21,872 INFO L93 Difference]: Finished difference Result 57401 states and 69348 transitions. [2021-11-03 04:58:21,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:58:21,873 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 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 52 [2021-11-03 04:58:21,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:22,058 INFO L225 Difference]: With dead ends: 57401 [2021-11-03 04:58:22,058 INFO L226 Difference]: Without dead ends: 24525 [2021-11-03 04:58:22,149 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:58:22,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24525 states. [2021-11-03 04:58:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24525 to 24525. [2021-11-03 04:58:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24525 states, 24509 states have (on average 1.203843486066343) internal successors, (29505), 24524 states have internal predecessors, (29505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:23,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24525 states to 24525 states and 29505 transitions. [2021-11-03 04:58:23,455 INFO L78 Accepts]: Start accepts. Automaton has 24525 states and 29505 transitions. Word has length 52 [2021-11-03 04:58:23,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:23,456 INFO L470 AbstractCegarLoop]: Abstraction has 24525 states and 29505 transitions. [2021-11-03 04:58:23,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 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) [2021-11-03 04:58:23,458 INFO L276 IsEmpty]: Start isEmpty. Operand 24525 states and 29505 transitions. [2021-11-03 04:58:23,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 04:58:23,461 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:23,462 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] [2021-11-03 04:58:23,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:23,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:58:23,678 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:58:23,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:23,679 INFO L85 PathProgramCache]: Analyzing trace with hash -2000935398, now seen corresponding path program 1 times [2021-11-03 04:58:23,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:58:23,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753238816] [2021-11-03 04:58:23,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:23,689 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:58:23,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:58:23,694 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:58:23,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:58:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:27,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1508 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 04:58:27,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:28,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:28,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:28,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:28,880 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:58:28,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753238816] [2021-11-03 04:58:28,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753238816] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:28,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:28,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-11-03 04:58:28,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462403307] [2021-11-03 04:58:28,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:58:28,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:58:28,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:58:28,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:58:28,886 INFO L87 Difference]: Start difference. First operand 24525 states and 29505 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:37,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:37,632 INFO L93 Difference]: Finished difference Result 49551 states and 59610 transitions. [2021-11-03 04:58:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:58:37,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 [2021-11-03 04:58:37,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:37,759 INFO L225 Difference]: With dead ends: 49551 [2021-11-03 04:58:37,759 INFO L226 Difference]: Without dead ends: 25044 [2021-11-03 04:58:37,828 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:58:37,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25044 states. [2021-11-03 04:58:39,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25044 to 24525. [2021-11-03 04:58:39,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24525 states, 24509 states have (on average 1.2038026847280592) internal successors, (29504), 24524 states have internal predecessors, (29504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:39,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24525 states to 24525 states and 29504 transitions. [2021-11-03 04:58:39,957 INFO L78 Accepts]: Start accepts. Automaton has 24525 states and 29504 transitions. Word has length 53 [2021-11-03 04:58:39,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:39,958 INFO L470 AbstractCegarLoop]: Abstraction has 24525 states and 29504 transitions. [2021-11-03 04:58:39,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:39,958 INFO L276 IsEmpty]: Start isEmpty. Operand 24525 states and 29504 transitions. [2021-11-03 04:58:39,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 04:58:39,962 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:39,962 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] [2021-11-03 04:58:40,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:40,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:58:40,186 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:58:40,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:40,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1690587197, now seen corresponding path program 1 times [2021-11-03 04:58:40,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:58:40,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131465871] [2021-11-03 04:58:40,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:40,192 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:58:40,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:58:40,194 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:58:40,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:58:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:44,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 1515 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:58:44,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:44,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:45,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:45,247 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:58:45,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131465871] [2021-11-03 04:58:45,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131465871] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:45,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:45,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 04:58:45,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597456276] [2021-11-03 04:58:45,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:58:45,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:58:45,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:58:45,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:58:45,250 INFO L87 Difference]: Start difference. First operand 24525 states and 29504 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:48,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:48,064 INFO L93 Difference]: Finished difference Result 49019 states and 58975 transitions. [2021-11-03 04:58:48,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:58:48,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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 [2021-11-03 04:58:48,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:48,135 INFO L225 Difference]: With dead ends: 49019 [2021-11-03 04:58:48,135 INFO L226 Difference]: Without dead ends: 24525 [2021-11-03 04:58:48,175 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 [2021-11-03 04:58:48,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24525 states. [2021-11-03 04:58:50,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24525 to 24525. [2021-11-03 04:58:50,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24525 states, 24509 states have (on average 1.2031498633155167) internal successors, (29488), 24524 states have internal predecessors, (29488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:50,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24525 states to 24525 states and 29488 transitions. [2021-11-03 04:58:50,579 INFO L78 Accepts]: Start accepts. Automaton has 24525 states and 29488 transitions. Word has length 53 [2021-11-03 04:58:50,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:50,580 INFO L470 AbstractCegarLoop]: Abstraction has 24525 states and 29488 transitions. [2021-11-03 04:58:50,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:50,580 INFO L276 IsEmpty]: Start isEmpty. Operand 24525 states and 29488 transitions. [2021-11-03 04:58:50,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 04:58:50,582 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:50,582 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:58:50,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:50,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:58:50,806 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:58:50,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:50,807 INFO L85 PathProgramCache]: Analyzing trace with hash 868682291, now seen corresponding path program 1 times [2021-11-03 04:58:50,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:58:50,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133684094] [2021-11-03 04:58:50,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:50,810 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:58:50,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:58:50,811 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:58:50,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:58:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:55,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:58:55,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:55,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:55,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:55,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:55,972 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:58:55,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133684094] [2021-11-03 04:58:55,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133684094] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:55,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:55,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 04:58:55,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457280987] [2021-11-03 04:58:55,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:58:55,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:58:55,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:58:55,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:58:55,975 INFO L87 Difference]: Start difference. First operand 24525 states and 29488 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:57,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:57,826 INFO L93 Difference]: Finished difference Result 49019 states and 58943 transitions. [2021-11-03 04:58:57,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:58:57,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 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 54 [2021-11-03 04:58:57,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:57,896 INFO L225 Difference]: With dead ends: 49019 [2021-11-03 04:58:57,896 INFO L226 Difference]: Without dead ends: 24525 [2021-11-03 04:58:57,922 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:58:57,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24525 states. [2021-11-03 04:58:59,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24525 to 24525. [2021-11-03 04:58:59,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24525 states, 24509 states have (on average 1.2024970419029744) internal successors, (29472), 24524 states have internal predecessors, (29472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:59,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24525 states to 24525 states and 29472 transitions. [2021-11-03 04:58:59,976 INFO L78 Accepts]: Start accepts. Automaton has 24525 states and 29472 transitions. Word has length 54 [2021-11-03 04:58:59,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:59,976 INFO L470 AbstractCegarLoop]: Abstraction has 24525 states and 29472 transitions. [2021-11-03 04:58:59,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:59,978 INFO L276 IsEmpty]: Start isEmpty. Operand 24525 states and 29472 transitions. [2021-11-03 04:58:59,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-03 04:58:59,981 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:59,991 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:59:00,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:59:00,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:59:00,205 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:59:00,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:59:00,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1159582936, now seen corresponding path program 1 times [2021-11-03 04:59:00,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:59:00,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796098990] [2021-11-03 04:59:00,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:59:00,209 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:59:00,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:59:00,213 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:59:00,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:59:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:59:04,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:59:04,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:59:04,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:59:04,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:59:05,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:59:05,387 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:59:05,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796098990] [2021-11-03 04:59:05,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796098990] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:59:05,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:59:05,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 04:59:05,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249193337] [2021-11-03 04:59:05,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:59:05,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:59:05,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:59:05,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:59:05,390 INFO L87 Difference]: Start difference. First operand 24525 states and 29472 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:07,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:59:07,694 INFO L93 Difference]: Finished difference Result 49019 states and 58911 transitions. [2021-11-03 04:59:07,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:59:07,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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 55 [2021-11-03 04:59:07,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:59:07,743 INFO L225 Difference]: With dead ends: 49019 [2021-11-03 04:59:07,743 INFO L226 Difference]: Without dead ends: 24525 [2021-11-03 04:59:07,773 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:59:07,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24525 states. [2021-11-03 04:59:10,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24525 to 24525. [2021-11-03 04:59:10,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24525 states, 24509 states have (on average 1.201844220490432) internal successors, (29456), 24524 states have internal predecessors, (29456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:10,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24525 states to 24525 states and 29456 transitions. [2021-11-03 04:59:10,140 INFO L78 Accepts]: Start accepts. Automaton has 24525 states and 29456 transitions. Word has length 55 [2021-11-03 04:59:10,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:59:10,141 INFO L470 AbstractCegarLoop]: Abstraction has 24525 states and 29456 transitions. [2021-11-03 04:59:10,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:10,141 INFO L276 IsEmpty]: Start isEmpty. Operand 24525 states and 29456 transitions. [2021-11-03 04:59:10,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 04:59:10,142 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:59:10,142 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:59:10,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:59:10,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:59:10,345 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:59:10,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:59:10,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1587717294, now seen corresponding path program 1 times [2021-11-03 04:59:10,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:59:10,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638621721] [2021-11-03 04:59:10,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:59:10,349 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:59:10,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:59:10,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:59:10,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:59:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:59:14,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:59:14,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:59:14,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:59:14,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:59:15,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:59:15,194 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:59:15,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638621721] [2021-11-03 04:59:15,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638621721] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:59:15,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:59:15,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 04:59:15,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655706961] [2021-11-03 04:59:15,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:59:15,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:59:15,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:59:15,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:59:15,196 INFO L87 Difference]: Start difference. First operand 24525 states and 29456 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:17,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:59:17,118 INFO L93 Difference]: Finished difference Result 49019 states and 58879 transitions. [2021-11-03 04:59:17,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:59:17,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-03 04:59:17,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:59:17,156 INFO L225 Difference]: With dead ends: 49019 [2021-11-03 04:59:17,156 INFO L226 Difference]: Without dead ends: 24525 [2021-11-03 04:59:17,184 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:59:17,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24525 states. [2021-11-03 04:59:19,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24525 to 24525. [2021-11-03 04:59:19,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24525 states, 24509 states have (on average 1.2011913990778897) internal successors, (29440), 24524 states have internal predecessors, (29440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:19,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24525 states to 24525 states and 29440 transitions. [2021-11-03 04:59:19,065 INFO L78 Accepts]: Start accepts. Automaton has 24525 states and 29440 transitions. Word has length 56 [2021-11-03 04:59:19,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:59:19,065 INFO L470 AbstractCegarLoop]: Abstraction has 24525 states and 29440 transitions. [2021-11-03 04:59:19,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:19,066 INFO L276 IsEmpty]: Start isEmpty. Operand 24525 states and 29440 transitions. [2021-11-03 04:59:19,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-03 04:59:19,067 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:59:19,067 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:59:19,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 04:59:19,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:59:19,268 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:59:19,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:59:19,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1975129459, now seen corresponding path program 1 times [2021-11-03 04:59:19,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:59:19,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649819154] [2021-11-03 04:59:19,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:59:19,271 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:59:19,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:59:19,272 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:59:19,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:59:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:59:23,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:59:23,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:59:23,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:59:23,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:59:24,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:59:24,100 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:59:24,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649819154] [2021-11-03 04:59:24,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649819154] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:59:24,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:59:24,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 04:59:24,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824269808] [2021-11-03 04:59:24,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:59:24,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:59:24,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:59:24,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:59:24,102 INFO L87 Difference]: Start difference. First operand 24525 states and 29440 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:31,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:59:31,481 INFO L93 Difference]: Finished difference Result 68345 states and 81891 transitions. [2021-11-03 04:59:31,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:59:31,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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 57 [2021-11-03 04:59:31,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:59:31,551 INFO L225 Difference]: With dead ends: 68345 [2021-11-03 04:59:31,551 INFO L226 Difference]: Without dead ends: 43851 [2021-11-03 04:59:31,584 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:59:31,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43851 states. [2021-11-03 04:59:34,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43851 to 32721. [2021-11-03 04:59:34,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32721 states, 32705 states have (on average 1.1999694236355298) internal successors, (39245), 32720 states have internal predecessors, (39245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:34,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32721 states to 32721 states and 39245 transitions. [2021-11-03 04:59:34,974 INFO L78 Accepts]: Start accepts. Automaton has 32721 states and 39245 transitions. Word has length 57 [2021-11-03 04:59:34,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:59:34,975 INFO L470 AbstractCegarLoop]: Abstraction has 32721 states and 39245 transitions. [2021-11-03 04:59:34,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:34,975 INFO L276 IsEmpty]: Start isEmpty. Operand 32721 states and 39245 transitions. [2021-11-03 04:59:34,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 04:59:34,977 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:59:34,977 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:59:35,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-03 04:59:35,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:59:35,179 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 04:59:35,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:59:35,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1100153641, now seen corresponding path program 1 times [2021-11-03 04:59:35,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:59:35,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624200834] [2021-11-03 04:59:35,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:59:35,182 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:59:35,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:59:35,183 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:59:35,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e22c7db-1120-4811-9778-a14c24f4834a/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process