./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cd8248f52e54312770460b05c349f71bb63d094ef2f9e53f87d753bfc5b43661 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:18:15,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:18:15,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:18:15,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:18:15,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:18:15,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:18:15,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:18:15,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:18:15,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:18:15,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:18:15,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:18:15,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:18:15,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:18:15,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:18:15,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:18:15,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:18:15,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:18:15,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:18:15,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:18:15,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:18:15,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:18:15,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:18:15,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:18:15,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:18:15,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:18:15,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:18:15,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:18:15,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:18:15,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:18:15,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:18:15,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:18:15,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:18:15,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:18:15,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:18:15,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:18:15,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:18:15,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:18:15,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:18:15,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:18:15,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:18:15,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:18:15,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:18:15,927 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:18:15,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:18:15,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:18:15,929 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:18:15,929 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:18:15,929 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:18:15,929 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:18:15,930 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:18:15,930 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:18:15,930 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:18:15,931 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:18:15,931 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:18:15,932 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:18:15,932 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:18:15,932 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:18:15,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:18:15,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:18:15,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:18:15,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:18:15,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:18:15,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:18:15,934 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:18:15,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:18:15,934 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:18:15,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:18:15,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:18:15,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:18:15,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:18:15,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:18:15,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:18:15,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:18:15,936 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:18:15,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:18:15,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:18:15,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:18:15,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:18:15,937 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_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd8248f52e54312770460b05c349f71bb63d094ef2f9e53f87d753bfc5b43661 [2021-11-07 02:18:16,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:18:16,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:18:16,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:18:16,247 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:18:16,248 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:18:16,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i [2021-11-07 02:18:16,335 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/data/e9232352f/1bfae2c1627d44e899eb6ba4e0eb5c9a/FLAG1acafc10c [2021-11-07 02:18:17,249 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:18:17,250 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i [2021-11-07 02:18:17,323 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/data/e9232352f/1bfae2c1627d44e899eb6ba4e0eb5c9a/FLAG1acafc10c [2021-11-07 02:18:17,672 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/data/e9232352f/1bfae2c1627d44e899eb6ba4e0eb5c9a [2021-11-07 02:18:17,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:18:17,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:18:17,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:18:17,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:18:17,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:18:17,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:18:17" (1/1) ... [2021-11-07 02:18:17,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74eaf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:17, skipping insertion in model container [2021-11-07 02:18:17,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:18:17" (1/1) ... [2021-11-07 02:18:17,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:18:17,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:18:19,351 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,363 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,365 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,369 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,371 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,838 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,846 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,853 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,862 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,872 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,896 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,910 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,918 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,924 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,934 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,942 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,952 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,957 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,963 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:19,984 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,075 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,081 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,087 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,093 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,117 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,125 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,132 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,138 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,144 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,155 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,162 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,167 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,176 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,181 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,186 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,192 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,193 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,199 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,205 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,210 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,215 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,222 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,227 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,233 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,239 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,244 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,250 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,251 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,251 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,296 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,309 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,310 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,311 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,323 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,324 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,331 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,332 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,334 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:18:20,593 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_54b0ee94-4d33-4465-acba-20fa8d4685eb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i[372693,372706] [2021-11-07 02:18:20,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:18:20,791 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 02:18:20,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40bddc3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:20, skipping insertion in model container [2021-11-07 02:18:20,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:18:20,793 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:18:20,795 INFO L168 Benchmark]: Toolchain (without parser) took 3117.90 ms. Allocated memory was 77.6 MB in the beginning and 138.4 MB in the end (delta: 60.8 MB). Free memory was 40.8 MB in the beginning and 76.9 MB in the end (delta: -36.1 MB). Peak memory consumption was 54.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:18:20,796 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 77.6 MB. Free memory was 56.0 MB in the beginning and 55.9 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:18:20,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3115.55 ms. Allocated memory was 77.6 MB in the beginning and 138.4 MB in the end (delta: 60.8 MB). Free memory was 40.5 MB in the beginning and 76.9 MB in the end (delta: -36.3 MB). Peak memory consumption was 54.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:18:20,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 77.6 MB. Free memory was 56.0 MB in the beginning and 55.9 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3115.55 ms. Allocated memory was 77.6 MB in the beginning and 138.4 MB in the end (delta: 60.8 MB). Free memory was 40.5 MB in the beginning and 76.9 MB in the end (delta: -36.3 MB). Peak memory consumption was 54.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4263]: 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_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cd8248f52e54312770460b05c349f71bb63d094ef2f9e53f87d753bfc5b43661 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:18:23,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:18:23,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:18:23,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:18:23,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:18:23,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:18:23,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:18:23,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:18:23,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:18:23,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:18:23,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:18:23,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:18:23,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:18:23,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:18:23,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:18:23,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:18:23,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:18:23,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:18:23,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:18:23,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:18:23,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:18:23,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:18:23,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:18:23,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:18:23,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:18:23,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:18:23,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:18:23,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:18:23,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:18:23,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:18:23,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:18:23,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:18:23,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:18:23,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:18:23,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:18:23,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:18:23,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:18:23,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:18:23,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:18:23,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:18:23,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:18:23,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:18:23,309 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:18:23,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:18:23,311 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:18:23,311 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:18:23,312 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:18:23,312 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:18:23,312 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:18:23,312 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:18:23,313 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:18:23,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:18:23,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:18:23,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:18:23,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:18:23,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:18:23,316 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:18:23,317 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:18:23,317 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:18:23,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:18:23,317 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:18:23,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:18:23,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:18:23,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:18:23,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:18:23,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:18:23,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:18:23,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:18:23,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:18:23,320 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:18:23,320 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:18:23,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:18:23,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:18:23,321 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:18:23,321 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_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd8248f52e54312770460b05c349f71bb63d094ef2f9e53f87d753bfc5b43661 [2021-11-07 02:18:23,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:18:23,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:18:23,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:18:23,746 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:18:23,746 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:18:23,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i [2021-11-07 02:18:23,814 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/data/3e982f641/7a8744792d7e40b591ca0f0170c69e87/FLAG59f3a3a68 [2021-11-07 02:18:24,950 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:18:24,951 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i [2021-11-07 02:18:25,018 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/data/3e982f641/7a8744792d7e40b591ca0f0170c69e87/FLAG59f3a3a68 [2021-11-07 02:18:25,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/data/3e982f641/7a8744792d7e40b591ca0f0170c69e87 [2021-11-07 02:18:25,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:18:25,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:18:25,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:18:25,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:18:25,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:18:25,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:18:25" (1/1) ... [2021-11-07 02:18:25,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e5a4dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:25, skipping insertion in model container [2021-11-07 02:18:25,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:18:25" (1/1) ... [2021-11-07 02:18:25,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:18:25,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:18:28,514 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_54b0ee94-4d33-4465-acba-20fa8d4685eb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i[372693,372706] [2021-11-07 02:18:28,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:18:28,684 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:18:28,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:18:29,314 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_54b0ee94-4d33-4465-acba-20fa8d4685eb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i[372693,372706] [2021-11-07 02:18:29,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:18:29,383 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:18:30,113 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i[372693,372706] [2021-11-07 02:18:30,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:18:30,391 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:18:30,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:30 WrapperNode [2021-11-07 02:18:30,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:18:30,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:18:30,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:18:30,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:18:30,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:30" (1/1) ... [2021-11-07 02:18:30,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:30" (1/1) ... [2021-11-07 02:18:31,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:18:31,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:18:31,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:18:31,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:18:31,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:30" (1/1) ... [2021-11-07 02:18:31,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:30" (1/1) ... [2021-11-07 02:18:31,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:30" (1/1) ... [2021-11-07 02:18:31,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:30" (1/1) ... [2021-11-07 02:18:32,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:30" (1/1) ... [2021-11-07 02:18:32,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:30" (1/1) ... [2021-11-07 02:18:32,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:30" (1/1) ... [2021-11-07 02:18:32,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:18:32,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:18:32,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:18:32,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:18:32,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:30" (1/1) ... [2021-11-07 02:18:32,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:18:32,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:18:32,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:18:32,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:18:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure part_get_fact_prot_info [2021-11-07 02:18:32,528 INFO L138 BoogieDeclarations]: Found implementation of procedure part_get_fact_prot_info [2021-11-07 02:18:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:18:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure part_write_oob [2021-11-07 02:18:32,529 INFO L138 BoogieDeclarations]: Found implementation of procedure part_write_oob [2021-11-07 02:18:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_block_markbad [2021-11-07 02:18:32,529 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_block_markbad [2021-11-07 02:18:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:18:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_read_oob [2021-11-07 02:18:32,529 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_read_oob [2021-11-07 02:18:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-07 02:18:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_suspend [2021-11-07 02:18:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_suspend [2021-11-07 02:18:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:18:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 02:18:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 02:18:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 02:18:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure put_mtd_device [2021-11-07 02:18:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure put_mtd_device [2021-11-07 02:18:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure part_write_user_prot_reg [2021-11-07 02:18:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure part_write_user_prot_reg [2021-11-07 02:18:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_get_user_prot_info [2021-11-07 02:18:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_get_user_prot_info [2021-11-07 02:18:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure part_read [2021-11-07 02:18:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure part_read [2021-11-07 02:18:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure concat_write_oob [2021-11-07 02:18:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_write_oob [2021-11-07 02:18:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure vm_iomap_memory [2021-11-07 02:18:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_read_user_prot_reg [2021-11-07 02:18:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_read_user_prot_reg [2021-11-07 02:18:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure part_panic_write [2021-11-07 02:18:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure part_panic_write [2021-11-07 02:18:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure concat_unlock [2021-11-07 02:18:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_unlock [2021-11-07 02:18:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~loff_t~0~X~C_ULONG~X~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-07 02:18:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~loff_t~0~X~C_ULONG~X~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-07 02:18:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure concat_sync [2021-11-07 02:18:32,535 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_sync [2021-11-07 02:18:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_locked [2021-11-07 02:18:32,535 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_locked [2021-11-07 02:18:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure part_block_isreserved [2021-11-07 02:18:32,536 INFO L138 BoogieDeclarations]: Found implementation of procedure part_block_isreserved [2021-11-07 02:18:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~X~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-07 02:18:32,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~X~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-07 02:18:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:18:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure concat_write [2021-11-07 02:18:32,537 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_write [2021-11-07 02:18:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure part_is_locked [2021-11-07 02:18:32,537 INFO L138 BoogieDeclarations]: Found implementation of procedure part_is_locked [2021-11-07 02:18:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:18:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure part_block_markbad [2021-11-07 02:18:32,538 INFO L138 BoogieDeclarations]: Found implementation of procedure part_block_markbad [2021-11-07 02:18:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure concat_resume [2021-11-07 02:18:32,539 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_resume [2021-11-07 02:18:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure part_unlock [2021-11-07 02:18:32,540 INFO L138 BoogieDeclarations]: Found implementation of procedure part_unlock [2021-11-07 02:18:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_read_fact_prot_reg [2021-11-07 02:18:32,540 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_read_fact_prot_reg [2021-11-07 02:18:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_sync [2021-11-07 02:18:32,541 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_sync [2021-11-07 02:18:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:18:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:18:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 02:18:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:18:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:18:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:18:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 02:18:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:18:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:18:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_unpoint [2021-11-07 02:18:32,544 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_unpoint [2021-11-07 02:18:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:18:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure concat_erase [2021-11-07 02:18:32,545 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_erase [2021-11-07 02:18:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_erase_callback [2021-11-07 02:18:32,545 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_erase_callback [2021-11-07 02:18:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_block_isreserved [2021-11-07 02:18:32,545 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_block_isreserved [2021-11-07 02:18:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure part_read_fact_prot_reg [2021-11-07 02:18:32,546 INFO L138 BoogieDeclarations]: Found implementation of procedure part_read_fact_prot_reg [2021-11-07 02:18:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_resume [2021-11-07 02:18:32,546 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_resume [2021-11-07 02:18:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_write_oob [2021-11-07 02:18:32,546 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_write_oob [2021-11-07 02:18:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure part_write [2021-11-07 02:18:32,547 INFO L138 BoogieDeclarations]: Found implementation of procedure part_write [2021-11-07 02:18:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~loff_t~0~X~C_ULONG~TO~C_INT [2021-11-07 02:18:32,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~loff_t~0~X~C_ULONG~TO~C_INT [2021-11-07 02:18:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure concat_lock [2021-11-07 02:18:32,548 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_lock [2021-11-07 02:18:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-07 02:18:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure register_mtd_user [2021-11-07 02:18:32,549 INFO L138 BoogieDeclarations]: Found implementation of procedure register_mtd_user [2021-11-07 02:18:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_lock_user_prot_reg [2021-11-07 02:18:32,550 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_lock_user_prot_reg [2021-11-07 02:18:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-07 02:18:32,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-07 02:18:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure concat_block_isbad [2021-11-07 02:18:32,551 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_block_isbad [2021-11-07 02:18:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~loff_t~0~X~$Pointer$~TO~C_INT [2021-11-07 02:18:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~loff_t~0~X~$Pointer$~TO~C_INT [2021-11-07 02:18:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_write [2021-11-07 02:18:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_write [2021-11-07 02:18:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure part_sync [2021-11-07 02:18:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure part_sync [2021-11-07 02:18:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure concat_suspend [2021-11-07 02:18:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_suspend [2021-11-07 02:18:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure __get_mtd_device [2021-11-07 02:18:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_mtd_device [2021-11-07 02:18:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure part_read_oob [2021-11-07 02:18:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure part_read_oob [2021-11-07 02:18:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 02:18:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure kill_mtd_super [2021-11-07 02:18:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_mtd_super [2021-11-07 02:18:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 02:18:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 02:18:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 02:18:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-07 02:18:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-07 02:18:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_block_isbad [2021-11-07 02:18:32,563 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_block_isbad [2021-11-07 02:18:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:18:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_erase [2021-11-07 02:18:32,563 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_erase [2021-11-07 02:18:32,569 INFO L130 BoogieDeclarations]: Found specification of procedure concat_read [2021-11-07 02:18:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_read [2021-11-07 02:18:32,569 INFO L130 BoogieDeclarations]: Found specification of procedure concat_read_oob [2021-11-07 02:18:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_read_oob [2021-11-07 02:18:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:18:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 02:18:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 02:18:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 02:18:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 02:18:32,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 02:18:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 02:18:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure __put_mtd_device [2021-11-07 02:18:32,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __put_mtd_device [2021-11-07 02:18:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~loff_t~0~TO~C_INT [2021-11-07 02:18:32,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~loff_t~0~TO~C_INT [2021-11-07 02:18:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_get_fact_prot_info [2021-11-07 02:18:32,572 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_get_fact_prot_info [2021-11-07 02:18:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_unlock [2021-11-07 02:18:32,572 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_unlock [2021-11-07 02:18:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure part_suspend [2021-11-07 02:18:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure part_suspend [2021-11-07 02:18:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure part_unpoint [2021-11-07 02:18:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure part_unpoint [2021-11-07 02:18:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure part_block_isbad [2021-11-07 02:18:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure part_block_isbad [2021-11-07 02:18:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_read [2021-11-07 02:18:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_read [2021-11-07 02:18:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure part_read_user_prot_reg [2021-11-07 02:18:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure part_read_user_prot_reg [2021-11-07 02:18:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_lock [2021-11-07 02:18:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_lock [2021-11-07 02:18:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure part_erase [2021-11-07 02:18:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure part_erase [2021-11-07 02:18:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure concat_block_markbad [2021-11-07 02:18:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_block_markbad [2021-11-07 02:18:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure concat_dev_erase [2021-11-07 02:18:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure concat_dev_erase [2021-11-07 02:18:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure part_resume [2021-11-07 02:18:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure part_resume [2021-11-07 02:18:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_cls_suspend [2021-11-07 02:18:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_cls_suspend [2021-11-07 02:18:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure part_lock_user_prot_reg [2021-11-07 02:18:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure part_lock_user_prot_reg [2021-11-07 02:18:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure part_lock [2021-11-07 02:18:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure part_lock [2021-11-07 02:18:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_panic_write [2021-11-07 02:18:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_panic_write [2021-11-07 02:18:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 02:18:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure part_get_user_prot_info [2021-11-07 02:18:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure part_get_user_prot_info [2021-11-07 02:18:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~loff_t~0~X~~uint64_t~0~TO~C_INT [2021-11-07 02:18:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~loff_t~0~X~~uint64_t~0~TO~C_INT [2021-11-07 02:18:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_write_user_prot_reg [2021-11-07 02:18:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_write_user_prot_reg [2021-11-07 02:18:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:18:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:21:37,893 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:21:37,894 INFO L299 CfgBuilder]: Removed 3134 assume(true) statements. [2021-11-07 02:21:37,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:21:37 BoogieIcfgContainer [2021-11-07 02:21:37,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:21:37,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:21:37,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:21:37,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:21:37,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:18:25" (1/3) ... [2021-11-07 02:21:37,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3636833e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:21:37, skipping insertion in model container [2021-11-07 02:21:37,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:18:30" (2/3) ... [2021-11-07 02:21:37,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3636833e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:21:37, skipping insertion in model container [2021-11-07 02:21:37,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:21:37" (3/3) ... [2021-11-07 02:21:37,912 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--mtd.ko-entry_point.cil.out.i [2021-11-07 02:21:37,919 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:21:37,919 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-07 02:21:37,998 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:21:38,005 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:21:38,005 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-07 02:21:38,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 4570 states, 4287 states have (on average 1.443900163284348) internal successors, (6190), 4312 states have internal predecessors, (6190), 201 states have call successors, (201), 73 states have call predecessors, (201), 73 states have return successors, (201), 193 states have call predecessors, (201), 201 states have call successors, (201) [2021-11-07 02:21:38,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-07 02:21:38,159 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:21:38,161 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:21:38,162 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 02:21:38,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:21:38,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1640483967, now seen corresponding path program 1 times [2021-11-07 02:21:38,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:21:38,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984645240] [2021-11-07 02:21:38,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:21:38,209 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:21:38,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:21:38,215 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:21:38,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:22:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:22:02,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 5562 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:22:03,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:22:04,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:22:04,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:22:05,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:22:05,294 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:22:05,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984645240] [2021-11-07 02:22:05,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984645240] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:22:05,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:22:05,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:22:05,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699913379] [2021-11-07 02:22:05,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:22:05,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:22:05,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:22:05,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:22:05,351 INFO L87 Difference]: Start difference. First operand has 4570 states, 4287 states have (on average 1.443900163284348) internal successors, (6190), 4312 states have internal predecessors, (6190), 201 states have call successors, (201), 73 states have call predecessors, (201), 73 states have return successors, (201), 193 states have call predecessors, (201), 201 states have call successors, (201) Second operand has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:22:05,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:22:05,719 INFO L93 Difference]: Finished difference Result 9112 states and 13205 transitions. [2021-11-07 02:22:05,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:22:05,721 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 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 233 [2021-11-07 02:22:05,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:22:05,798 INFO L225 Difference]: With dead ends: 9112 [2021-11-07 02:22:05,799 INFO L226 Difference]: Without dead ends: 4512 [2021-11-07 02:22:05,828 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:22:05,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2021-11-07 02:22:06,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 4512. [2021-11-07 02:22:06,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4512 states, 4230 states have (on average 1.3981087470449172) internal successors, (5914), 4254 states have internal predecessors, (5914), 201 states have call successors, (201), 73 states have call predecessors, (201), 73 states have return successors, (201), 193 states have call predecessors, (201), 201 states have call successors, (201) [2021-11-07 02:22:06,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4512 states to 4512 states and 6316 transitions. [2021-11-07 02:22:06,161 INFO L78 Accepts]: Start accepts. Automaton has 4512 states and 6316 transitions. Word has length 233 [2021-11-07 02:22:06,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:22:06,165 INFO L470 AbstractCegarLoop]: Abstraction has 4512 states and 6316 transitions. [2021-11-07 02:22:06,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:22:06,166 INFO L276 IsEmpty]: Start isEmpty. Operand 4512 states and 6316 transitions. [2021-11-07 02:22:06,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-07 02:22:06,183 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:22:06,184 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:22:06,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:22:06,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:22:06,400 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 02:22:06,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:22:06,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1497986007, now seen corresponding path program 1 times [2021-11-07 02:22:06,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:22:06,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139256825] [2021-11-07 02:22:06,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:22:06,427 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:22:06,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:22:06,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:22:06,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:22:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:22:33,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 5562 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:22:33,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:22:34,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:22:34,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:22:34,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:22:34,991 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:22:34,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139256825] [2021-11-07 02:22:34,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139256825] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:22:34,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:22:34,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:22:34,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444026188] [2021-11-07 02:22:34,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:22:34,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:22:34,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:22:34,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:22:34,997 INFO L87 Difference]: Start difference. First operand 4512 states and 6316 transitions. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:22:36,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:22:36,402 INFO L93 Difference]: Finished difference Result 8840 states and 12467 transitions. [2021-11-07 02:22:36,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:22:36,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 233 [2021-11-07 02:22:36,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:22:36,445 INFO L225 Difference]: With dead ends: 8840 [2021-11-07 02:22:36,445 INFO L226 Difference]: Without dead ends: 4532 [2021-11-07 02:22:36,461 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:22:36,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4532 states. [2021-11-07 02:22:36,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4532 to 4532. [2021-11-07 02:22:36,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 4250 states have (on average 1.396235294117647) internal successors, (5934), 4274 states have internal predecessors, (5934), 201 states have call successors, (201), 73 states have call predecessors, (201), 73 states have return successors, (201), 193 states have call predecessors, (201), 201 states have call successors, (201) [2021-11-07 02:22:36,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 6336 transitions. [2021-11-07 02:22:36,645 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 6336 transitions. Word has length 233 [2021-11-07 02:22:36,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:22:36,649 INFO L470 AbstractCegarLoop]: Abstraction has 4532 states and 6336 transitions. [2021-11-07 02:22:36,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:22:36,650 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 6336 transitions. [2021-11-07 02:22:36,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-07 02:22:36,655 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:22:36,656 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:22:36,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:22:36,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:22:36,869 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 02:22:36,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:22:36,870 INFO L85 PathProgramCache]: Analyzing trace with hash -276240077, now seen corresponding path program 1 times [2021-11-07 02:22:36,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:22:36,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886021061] [2021-11-07 02:22:36,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:22:36,888 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:22:36,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:22:36,889 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:22:36,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:23:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:23:04,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 5587 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:23:04,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:23:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:23:05,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:23:07,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:23:07,092 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:23:07,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886021061] [2021-11-07 02:23:07,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886021061] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:23:07,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1914905621] [2021-11-07 02:23:07,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:23:07,092 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:23:07,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:23:07,103 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:23:07,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-07 02:23:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:23:11,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 5587 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:23:12,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:23:14,674 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:23:14,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:23:17,190 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:23:17,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1914905621] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:23:17,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:23:17,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-07 02:23:17,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736721947] [2021-11-07 02:23:17,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:23:17,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:23:17,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:23:17,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:23:17,195 INFO L87 Difference]: Start difference. First operand 4532 states and 6336 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 2 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:23:17,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:23:17,780 INFO L93 Difference]: Finished difference Result 13147 states and 18676 transitions. [2021-11-07 02:23:17,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:23:17,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 2 states have internal predecessors, (237), 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 238 [2021-11-07 02:23:17,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:23:17,862 INFO L225 Difference]: With dead ends: 13147 [2021-11-07 02:23:17,862 INFO L226 Difference]: Without dead ends: 8830 [2021-11-07 02:23:17,881 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 948 GetRequests, 941 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:23:17,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8830 states. [2021-11-07 02:23:18,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8830 to 8816. [2021-11-07 02:23:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8816 states, 8260 states have (on average 1.4060532687651333) internal successors, (11614), 8301 states have internal predecessors, (11614), 402 states have call successors, (402), 146 states have call predecessors, (402), 146 states have return successors, (464), 386 states have call predecessors, (464), 402 states have call successors, (464) [2021-11-07 02:23:18,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8816 states to 8816 states and 12480 transitions. [2021-11-07 02:23:18,360 INFO L78 Accepts]: Start accepts. Automaton has 8816 states and 12480 transitions. Word has length 238 [2021-11-07 02:23:18,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:23:18,362 INFO L470 AbstractCegarLoop]: Abstraction has 8816 states and 12480 transitions. [2021-11-07 02:23:18,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 2 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:23:18,364 INFO L276 IsEmpty]: Start isEmpty. Operand 8816 states and 12480 transitions. [2021-11-07 02:23:18,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-11-07 02:23:18,371 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:23:18,371 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:23:18,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:23:18,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:23:18,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:23:18,799 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 02:23:18,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:23:18,800 INFO L85 PathProgramCache]: Analyzing trace with hash -273993223, now seen corresponding path program 1 times [2021-11-07 02:23:18,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:23:18,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944681704] [2021-11-07 02:23:18,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:23:18,820 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:23:18,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:23:18,821 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:23:18,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:23:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:23:45,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 5641 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:23:45,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:23:46,715 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:23:46,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:23:47,726 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:23:47,726 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:23:47,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944681704] [2021-11-07 02:23:47,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944681704] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:23:47,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1043862177] [2021-11-07 02:23:47,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:23:47,727 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:23:47,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:23:47,728 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:23:47,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-07 02:23:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:23:52,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 5641 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:23:52,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:23:53,534 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:23:53,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:23:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:23:54,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1043862177] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:23:54,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:23:54,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-07 02:23:54,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452770524] [2021-11-07 02:23:54,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:23:54,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:23:54,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:23:54,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:23:54,062 INFO L87 Difference]: Start difference. First operand 8816 states and 12480 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:23:55,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:23:55,782 INFO L93 Difference]: Finished difference Result 25806 states and 36648 transitions. [2021-11-07 02:23:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:23:55,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2021-11-07 02:23:55,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:23:55,923 INFO L225 Difference]: With dead ends: 25806 [2021-11-07 02:23:55,924 INFO L226 Difference]: Without dead ends: 17210 [2021-11-07 02:23:55,965 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 980 GetRequests, 973 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:23:55,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17210 states. [2021-11-07 02:23:56,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17210 to 17128. [2021-11-07 02:23:56,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17128 states, 16036 states have (on average 1.4101396857071589) internal successors, (22613), 16105 states have internal predecessors, (22613), 792 states have call successors, (792), 292 states have call predecessors, (792), 292 states have return successors, (910), 760 states have call predecessors, (910), 792 states have call successors, (910) [2021-11-07 02:23:56,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17128 states to 17128 states and 24315 transitions. [2021-11-07 02:23:56,750 INFO L78 Accepts]: Start accepts. Automaton has 17128 states and 24315 transitions. Word has length 246 [2021-11-07 02:23:56,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:23:56,751 INFO L470 AbstractCegarLoop]: Abstraction has 17128 states and 24315 transitions. [2021-11-07 02:23:56,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:23:56,752 INFO L276 IsEmpty]: Start isEmpty. Operand 17128 states and 24315 transitions. [2021-11-07 02:23:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-11-07 02:23:56,760 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:23:56,760 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:23:56,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:23:57,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:23:57,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:23:57,161 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 02:23:57,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:23:57,162 INFO L85 PathProgramCache]: Analyzing trace with hash 140311876, now seen corresponding path program 1 times [2021-11-07 02:23:57,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:23:57,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563152593] [2021-11-07 02:23:57,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:23:57,186 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:23:57,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:23:57,188 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:23:57,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:24:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:25,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 5898 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:24:25,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:26,888 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:24:26,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:28,206 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:24:28,206 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:28,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563152593] [2021-11-07 02:24:28,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563152593] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:24:28,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [872971129] [2021-11-07 02:24:28,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:28,207 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:24:28,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:24:28,207 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:24:28,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-07 02:24:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:33,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 5898 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:24:33,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:34,888 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:24:34,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:24:35,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [872971129] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:35,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:24:35,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 11 [2021-11-07 02:24:35,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368872150] [2021-11-07 02:24:35,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:24:35,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:35,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:24:35,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:24:35,634 INFO L87 Difference]: Start difference. First operand 17128 states and 24315 transitions. Second operand has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:40,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:40,739 INFO L93 Difference]: Finished difference Result 50887 states and 72435 transitions. [2021-11-07 02:24:40,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 02:24:40,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 297 [2021-11-07 02:24:40,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:41,075 INFO L225 Difference]: With dead ends: 50887 [2021-11-07 02:24:41,076 INFO L226 Difference]: Without dead ends: 33961 [2021-11-07 02:24:41,141 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1187 GetRequests, 1175 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-07 02:24:41,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33961 states. [2021-11-07 02:24:41,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33961 to 17121. [2021-11-07 02:24:42,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17121 states, 16029 states have (on average 1.409757314866804) internal successors, (22597), 16098 states have internal predecessors, (22597), 792 states have call successors, (792), 292 states have call predecessors, (792), 292 states have return successors, (910), 760 states have call predecessors, (910), 792 states have call successors, (910) [2021-11-07 02:24:42,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17121 states to 17121 states and 24299 transitions. [2021-11-07 02:24:42,290 INFO L78 Accepts]: Start accepts. Automaton has 17121 states and 24299 transitions. Word has length 297 [2021-11-07 02:24:42,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:42,291 INFO L470 AbstractCegarLoop]: Abstraction has 17121 states and 24299 transitions. [2021-11-07 02:24:42,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:42,291 INFO L276 IsEmpty]: Start isEmpty. Operand 17121 states and 24299 transitions. [2021-11-07 02:24:42,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-07 02:24:42,299 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:42,300 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:42,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:42,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:42,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:24:42,715 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __put_mtd_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 02:24:42,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:42,716 INFO L85 PathProgramCache]: Analyzing trace with hash 663729891, now seen corresponding path program 1 times [2021-11-07 02:24:42,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:42,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313268503] [2021-11-07 02:24:42,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:42,738 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:42,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:42,739 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:42,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:25:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:11,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 6046 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:25:11,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:13,326 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-07 02:25:13,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:14,679 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-07 02:25:14,679 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:25:14,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313268503] [2021-11-07 02:25:14,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313268503] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:14,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [786907291] [2021-11-07 02:25:14,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:14,680 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:25:14,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:25:14,681 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:25:14,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-07 02:25:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:20,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 6046 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:25:20,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:21,186 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-07 02:25:21,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:22,116 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-07 02:25:22,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [786907291] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:22,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:25:22,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-07 02:25:22,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79103716] [2021-11-07 02:25:22,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:25:22,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:25:22,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:25:22,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:25:22,119 INFO L87 Difference]: Start difference. First operand 17121 states and 24299 transitions. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:30,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:30,593 INFO L93 Difference]: Finished difference Result 35939 states and 51151 transitions. [2021-11-07 02:25:30,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:25:30,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 305 [2021-11-07 02:25:30,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:30,679 INFO L225 Difference]: With dead ends: 35939 [2021-11-07 02:25:30,679 INFO L226 Difference]: Without dead ends: 19038 [2021-11-07 02:25:30,725 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1216 GetRequests, 1209 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:25:30,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19038 states. [2021-11-07 02:25:31,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19038 to 18975. [2021-11-07 02:25:31,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18975 states, 17769 states have (on average 1.4134729022454837) internal successors, (25116), 17864 states have internal predecessors, (25116), 870 states have call successors, (870), 328 states have call predecessors, (870), 328 states have return successors, (1027), 822 states have call predecessors, (1027), 870 states have call successors, (1027) [2021-11-07 02:25:31,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18975 states to 18975 states and 27013 transitions. [2021-11-07 02:25:31,588 INFO L78 Accepts]: Start accepts. Automaton has 18975 states and 27013 transitions. Word has length 305 [2021-11-07 02:25:31,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:31,588 INFO L470 AbstractCegarLoop]: Abstraction has 18975 states and 27013 transitions. [2021-11-07 02:25:31,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 18975 states and 27013 transitions. [2021-11-07 02:25:31,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-11-07 02:25:31,596 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:31,597 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:31,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:32,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:32,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:25:32,023 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 02:25:32,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:32,024 INFO L85 PathProgramCache]: Analyzing trace with hash 611907009, now seen corresponding path program 1 times [2021-11-07 02:25:32,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:25:32,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888198869] [2021-11-07 02:25:32,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:32,042 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:25:32,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:25:32,044 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:25:32,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 02:26:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:26:01,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 5985 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:26:01,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:26:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:26:02,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:26:03,688 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:26:03,688 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:26:03,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888198869] [2021-11-07 02:26:03,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888198869] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:26:03,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [471369688] [2021-11-07 02:26:03,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:26:03,689 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:26:03,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:26:03,689 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:26:03,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-07 02:26:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:26:10,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 5985 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:26:10,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:26:11,382 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:26:11,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:26:12,305 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:26:12,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [471369688] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:26:12,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:26:12,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 11 [2021-11-07 02:26:12,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230471985] [2021-11-07 02:26:12,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:26:12,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:26:12,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:26:12,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:26:12,310 INFO L87 Difference]: Start difference. First operand 18975 states and 27013 transitions. Second operand has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:26:13,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:26:13,197 INFO L93 Difference]: Finished difference Result 37772 states and 53854 transitions. [2021-11-07 02:26:13,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:26:13,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2021-11-07 02:26:13,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:26:13,274 INFO L225 Difference]: With dead ends: 37772 [2021-11-07 02:26:13,274 INFO L226 Difference]: Without dead ends: 19001 [2021-11-07 02:26:13,313 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1238 GetRequests, 1227 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-07 02:26:13,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19001 states. [2021-11-07 02:26:13,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19001 to 18979. [2021-11-07 02:26:13,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18979 states, 17773 states have (on average 1.412929724863557) internal successors, (25112), 17868 states have internal predecessors, (25112), 870 states have call successors, (870), 328 states have call predecessors, (870), 328 states have return successors, (1027), 822 states have call predecessors, (1027), 870 states have call successors, (1027) [2021-11-07 02:26:14,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18979 states to 18979 states and 27009 transitions. [2021-11-07 02:26:14,062 INFO L78 Accepts]: Start accepts. Automaton has 18979 states and 27009 transitions. Word has length 310 [2021-11-07 02:26:14,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:26:14,063 INFO L470 AbstractCegarLoop]: Abstraction has 18979 states and 27009 transitions. [2021-11-07 02:26:14,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:26:14,064 INFO L276 IsEmpty]: Start isEmpty. Operand 18979 states and 27009 transitions. [2021-11-07 02:26:14,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-11-07 02:26:14,072 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:26:14,072 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:26:14,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-07 02:26:14,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 02:26:14,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:26:14,499 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 02:26:14,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:26:14,500 INFO L85 PathProgramCache]: Analyzing trace with hash 2040310468, now seen corresponding path program 1 times [2021-11-07 02:26:14,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:26:14,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819279561] [2021-11-07 02:26:14,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:26:14,516 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:26:14,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:26:14,518 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:26:14,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 02:26:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:26:44,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 5981 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:26:44,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:26:45,963 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:26:45,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:26:47,273 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:26:47,273 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:26:47,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819279561] [2021-11-07 02:26:47,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819279561] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:26:47,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [200205173] [2021-11-07 02:26:47,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:26:47,275 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:26:47,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:26:47,279 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:26:47,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-07 02:26:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:26:53,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 5981 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:26:53,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:26:54,477 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:26:54,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:26:55,207 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:26:55,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [200205173] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:26:55,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:26:55,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 10 [2021-11-07 02:26:55,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696387847] [2021-11-07 02:26:55,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:26:55,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:26:55,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:26:55,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:26:55,211 INFO L87 Difference]: Start difference. First operand 18979 states and 27009 transitions. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:27:02,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:27:02,852 INFO L93 Difference]: Finished difference Result 56084 states and 80023 transitions. [2021-11-07 02:27:02,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:27:02,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2021-11-07 02:27:02,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:27:03,014 INFO L225 Difference]: With dead ends: 56084 [2021-11-07 02:27:03,015 INFO L226 Difference]: Without dead ends: 37325 [2021-11-07 02:27:03,066 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 1228 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:27:03,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37325 states. [2021-11-07 02:27:04,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37325 to 37143. [2021-11-07 02:27:04,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37143 states, 34801 states have (on average 1.4167121634435793) internal successors, (49303), 34970 states have internal predecessors, (49303), 1690 states have call successors, (1690), 644 states have call predecessors, (1690), 644 states have return successors, (1979), 1594 states have call predecessors, (1979), 1690 states have call successors, (1979) [2021-11-07 02:27:04,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37143 states to 37143 states and 52972 transitions. [2021-11-07 02:27:04,722 INFO L78 Accepts]: Start accepts. Automaton has 37143 states and 52972 transitions. Word has length 310 [2021-11-07 02:27:04,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:27:04,723 INFO L470 AbstractCegarLoop]: Abstraction has 37143 states and 52972 transitions. [2021-11-07 02:27:04,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:27:04,724 INFO L276 IsEmpty]: Start isEmpty. Operand 37143 states and 52972 transitions. [2021-11-07 02:27:04,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-07 02:27:04,739 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:27:04,740 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:27:04,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-11-07 02:27:05,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 02:27:05,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:27:05,159 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 02:27:05,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:27:05,160 INFO L85 PathProgramCache]: Analyzing trace with hash -276186538, now seen corresponding path program 1 times [2021-11-07 02:27:05,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:27:05,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298887061] [2021-11-07 02:27:05,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:27:05,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:27:05,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:27:05,173 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:27:05,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 02:27:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:27:35,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 6019 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:27:35,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:27:37,234 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 02:27:37,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:27:38,796 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 02:27:38,796 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:27:38,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298887061] [2021-11-07 02:27:38,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298887061] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:27:38,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1243624311] [2021-11-07 02:27:38,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:27:38,797 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:27:38,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:27:38,797 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:27:38,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-07 02:28:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:28:09,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 6019 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:28:09,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:28:11,020 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 02:28:11,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:28:12,229 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 02:28:12,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1243624311] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:28:12,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258637778] [2021-11-07 02:28:12,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:28:12,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:28:12,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:28:12,231 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:28:12,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-07 02:28:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:28:20,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 6019 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:28:20,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:28:21,636 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-07 02:28:21,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:28:22,768 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-07 02:28:22,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258637778] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:28:22,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-07 02:28:22,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5, 5, 5, 5] total 12 [2021-11-07 02:28:22,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51920794] [2021-11-07 02:28:22,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:28:22,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:28:22,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:28:22,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:28:22,771 INFO L87 Difference]: Start difference. First operand 37143 states and 52972 transitions. Second operand has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:28:24,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:28:24,189 INFO L93 Difference]: Finished difference Result 74109 states and 105770 transitions. [2021-11-07 02:28:24,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:28:24,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2021-11-07 02:28:24,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:28:24,330 INFO L225 Difference]: With dead ends: 74109 [2021-11-07 02:28:24,330 INFO L226 Difference]: Without dead ends: 37170 [2021-11-07 02:28:24,422 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1975 GetRequests, 1964 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-07 02:28:24,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37170 states. [2021-11-07 02:28:25,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37170 to 37145. [2021-11-07 02:28:25,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37145 states, 34803 states have (on average 1.4164583512915554) internal successors, (49297), 34972 states have internal predecessors, (49297), 1690 states have call successors, (1690), 644 states have call predecessors, (1690), 644 states have return successors, (1979), 1594 states have call predecessors, (1979), 1690 states have call successors, (1979) [2021-11-07 02:28:26,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37145 states to 37145 states and 52966 transitions. [2021-11-07 02:28:26,124 INFO L78 Accepts]: Start accepts. Automaton has 37145 states and 52966 transitions. Word has length 330 [2021-11-07 02:28:26,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:28:26,125 INFO L470 AbstractCegarLoop]: Abstraction has 37145 states and 52966 transitions. [2021-11-07 02:28:26,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:28:26,126 INFO L276 IsEmpty]: Start isEmpty. Operand 37145 states and 52966 transitions. [2021-11-07 02:28:26,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-07 02:28:26,135 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:28:26,135 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:28:26,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-07 02:28:26,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-11-07 02:28:26,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-07 02:28:26,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:28:26,744 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 02:28:26,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:28:26,745 INFO L85 PathProgramCache]: Analyzing trace with hash 2139649812, now seen corresponding path program 1 times [2021-11-07 02:28:26,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:28:26,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081254927] [2021-11-07 02:28:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:28:26,758 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:28:26,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:28:26,759 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:28:26,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-07 02:28:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:28:58,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 6019 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:28:58,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:28:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 02:28:59,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:29:00,923 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 02:29:00,923 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:29:00,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081254927] [2021-11-07 02:29:00,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081254927] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:29:00,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [683308510] [2021-11-07 02:29:00,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:29:00,925 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:29:00,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:29:00,926 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:29:00,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-11-07 02:29:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:29:32,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 6019 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:29:32,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:29:33,405 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 02:29:33,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:29:34,580 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 02:29:34,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [683308510] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:29:34,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306416070] [2021-11-07 02:29:34,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:29:34,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:29:34,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:29:34,588 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:29:34,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-07 02:29:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:29:44,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 6019 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:29:44,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:29:45,432 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-07 02:29:45,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:29:46,520 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-07 02:29:46,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306416070] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:29:46,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 02:29:46,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 4, 4] total 10 [2021-11-07 02:29:46,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927029656] [2021-11-07 02:29:46,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 02:29:46,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:29:46,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 02:29:46,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:29:46,525 INFO L87 Difference]: Start difference. First operand 37145 states and 52966 transitions. Second operand has 10 states, 10 states have (on average 33.3) internal successors, (333), 10 states have internal predecessors, (333), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:29:53,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:29:53,709 INFO L93 Difference]: Finished difference Result 74370 states and 106297 transitions. [2021-11-07 02:29:53,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 02:29:53,711 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 33.3) internal successors, (333), 10 states have internal predecessors, (333), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2021-11-07 02:29:53,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:29:53,833 INFO L225 Difference]: With dead ends: 74370 [2021-11-07 02:29:53,833 INFO L226 Difference]: Without dead ends: 37431 [2021-11-07 02:29:53,945 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1976 GetRequests, 1966 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:29:53,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37431 states. [2021-11-07 02:29:55,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37431 to 37431. [2021-11-07 02:29:55,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37431 states, 35089 states have (on average 1.4130639231668045) internal successors, (49583), 35258 states have internal predecessors, (49583), 1690 states have call successors, (1690), 644 states have call predecessors, (1690), 644 states have return successors, (1979), 1594 states have call predecessors, (1979), 1690 states have call successors, (1979) [2021-11-07 02:29:55,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37431 states to 37431 states and 53252 transitions. [2021-11-07 02:29:55,390 INFO L78 Accepts]: Start accepts. Automaton has 37431 states and 53252 transitions. Word has length 330 [2021-11-07 02:29:55,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:29:55,391 INFO L470 AbstractCegarLoop]: Abstraction has 37431 states and 53252 transitions. [2021-11-07 02:29:55,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.3) internal successors, (333), 10 states have internal predecessors, (333), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:29:55,392 INFO L276 IsEmpty]: Start isEmpty. Operand 37431 states and 53252 transitions. [2021-11-07 02:29:55,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-11-07 02:29:55,399 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:29:55,400 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:29:55,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-07 02:29:55,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-07 02:29:55,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2021-11-07 02:29:56,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:29:56,024 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 02:29:56,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:29:56,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1757439444, now seen corresponding path program 2 times [2021-11-07 02:29:56,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:29:56,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901972214] [2021-11-07 02:29:56,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 02:29:56,035 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:29:56,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:29:56,037 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:29:56,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54b0ee94-4d33-4465-acba-20fa8d4685eb/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process