./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c302c0a70f15041d912ede4a343504399632b0722d257e8570893a260b2b8dc --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:28:43,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:28:43,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:28:43,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:28:43,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:28:43,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:28:43,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:28:43,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:28:43,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:28:43,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:28:43,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:28:43,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:28:43,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:28:43,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:28:43,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:28:43,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:28:43,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:28:43,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:28:43,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:28:43,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:28:43,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:28:43,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:28:43,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:28:43,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:28:43,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:28:43,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:28:43,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:28:43,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:28:43,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:28:43,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:28:43,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:28:43,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:28:43,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:28:43,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:28:43,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:28:43,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:28:43,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:28:43,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:28:43,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:28:43,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:28:43,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:28:43,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-06 22:28:43,937 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:28:43,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:28:43,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:28:43,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:28:43,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:28:43,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:28:43,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:28:43,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:28:43,938 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:28:43,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:28:43,939 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:28:43,939 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 22:28:43,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:28:43,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:28:43,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:28:43,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:28:43,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:28:43,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:28:43,939 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-06 22:28:43,939 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:28:43,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:28:43,940 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:28:43,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:28:43,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:28:43,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:28:43,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:28:43,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:28:43,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:28:43,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:28:43,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:28:43,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:28:43,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:28:43,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:28:43,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:28:43,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c302c0a70f15041d912ede4a343504399632b0722d257e8570893a260b2b8dc [2021-12-06 22:28:44,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:28:44,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:28:44,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:28:44,155 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:28:44,156 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:28:44,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i [2021-12-06 22:28:44,210 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/data/d11182b65/02378b5ad92946028c08ef3ad2511a37/FLAGa5954d484 [2021-12-06 22:28:44,715 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:28:44,716 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i [2021-12-06 22:28:44,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/data/d11182b65/02378b5ad92946028c08ef3ad2511a37/FLAGa5954d484 [2021-12-06 22:28:45,185 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/data/d11182b65/02378b5ad92946028c08ef3ad2511a37 [2021-12-06 22:28:45,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:28:45,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:28:45,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:28:45,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:28:45,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:28:45,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:28:45" (1/1) ... [2021-12-06 22:28:45,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f82fe59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:45, skipping insertion in model container [2021-12-06 22:28:45,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:28:45" (1/1) ... [2021-12-06 22:28:45,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:28:45,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:28:45,553 WARN L230 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_9f56ce11-ec80-424d-b5b3-b3d09f282b31/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i[33021,33034] [2021-12-06 22:28:45,705 WARN L230 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_9f56ce11-ec80-424d-b5b3-b3d09f282b31/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i[84583,84596] [2021-12-06 22:28:45,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:28:45,720 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:28:45,742 WARN L230 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_9f56ce11-ec80-424d-b5b3-b3d09f282b31/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i[33021,33034] [2021-12-06 22:28:45,854 WARN L230 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_9f56ce11-ec80-424d-b5b3-b3d09f282b31/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i[84583,84596] [2021-12-06 22:28:45,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:28:45,896 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:28:45,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:45 WrapperNode [2021-12-06 22:28:45,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:28:45,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:28:45,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:28:45,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:28:45,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:45" (1/1) ... [2021-12-06 22:28:45,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:45" (1/1) ... [2021-12-06 22:28:46,004 INFO L137 Inliner]: procedures = 177, calls = 781, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3027 [2021-12-06 22:28:46,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:28:46,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:28:46,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:28:46,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:28:46,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:45" (1/1) ... [2021-12-06 22:28:46,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:45" (1/1) ... [2021-12-06 22:28:46,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:45" (1/1) ... [2021-12-06 22:28:46,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:45" (1/1) ... [2021-12-06 22:28:46,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:45" (1/1) ... [2021-12-06 22:28:46,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:45" (1/1) ... [2021-12-06 22:28:46,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:45" (1/1) ... [2021-12-06 22:28:46,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:28:46,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:28:46,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:28:46,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:28:46,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:45" (1/1) ... [2021-12-06 22:28:46,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:28:46,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:46,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:28:46,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:28:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:28:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-06 22:28:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-06 22:28:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:28:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 22:28:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 22:28:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 22:28:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:28:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 22:28:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:28:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-06 22:28:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 22:28:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:28:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:28:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:28:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:28:46,322 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:28:46,324 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:28:47,672 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:28:47,686 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:28:47,686 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-12-06 22:28:47,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:28:47 BoogieIcfgContainer [2021-12-06 22:28:47,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:28:47,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:28:47,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:28:47,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:28:47,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:28:45" (1/3) ... [2021-12-06 22:28:47,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad3dae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:28:47, skipping insertion in model container [2021-12-06 22:28:47,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:45" (2/3) ... [2021-12-06 22:28:47,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad3dae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:28:47, skipping insertion in model container [2021-12-06 22:28:47,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:28:47" (3/3) ... [2021-12-06 22:28:47,695 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test9-2.i [2021-12-06 22:28:47,699 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:28:47,699 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-12-06 22:28:47,739 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:28:47,744 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 [2021-12-06 22:28:47,744 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-06 22:28:47,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 1208 states, 694 states have (on average 1.9135446685878963) internal successors, (1328), 1202 states have internal predecessors, (1328), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-12-06 22:28:47,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-06 22:28:47,783 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:28:47,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:47,784 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-06 22:28:47,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:47,788 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2021-12-06 22:28:47,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:47,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405246260] [2021-12-06 22:28:47,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:47,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:47,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:47,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:47,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405246260] [2021-12-06 22:28:47,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405246260] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:28:47,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:28:47,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:28:47,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720775430] [2021-12-06 22:28:47,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:28:47,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 22:28:47,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:47,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 22:28:47,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 22:28:47,940 INFO L87 Difference]: Start difference. First operand has 1208 states, 694 states have (on average 1.9135446685878963) internal successors, (1328), 1202 states have internal predecessors, (1328), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-12-06 22:28:48,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:28:48,121 INFO L93 Difference]: Finished difference Result 2414 states and 5166 transitions. [2021-12-06 22:28:48,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 22:28:48,123 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-12-06 22:28:48,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:28:48,146 INFO L225 Difference]: With dead ends: 2414 [2021-12-06 22:28:48,147 INFO L226 Difference]: Without dead ends: 1175 [2021-12-06 22:28:48,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 22:28:48,158 INFO L933 BasicCegarLoop]: 2265 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:28:48,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2265 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:28:48,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2021-12-06 22:28:48,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1175. [2021-12-06 22:28:48,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 662 states have (on average 1.8353474320241692) internal successors, (1215), 1169 states have internal predecessors, (1215), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-12-06 22:28:48,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 2221 transitions. [2021-12-06 22:28:48,431 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 2221 transitions. Word has length 7 [2021-12-06 22:28:48,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:28:48,432 INFO L470 AbstractCegarLoop]: Abstraction has 1175 states and 2221 transitions. [2021-12-06 22:28:48,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-12-06 22:28:48,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 2221 transitions. [2021-12-06 22:28:48,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-06 22:28:48,432 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:28:48,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:48,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:28:48,433 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-06 22:28:48,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:48,434 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2021-12-06 22:28:48,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:48,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207216302] [2021-12-06 22:28:48,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:48,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:48,458 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:28:48,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1368277574] [2021-12-06 22:28:48,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:48,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:48,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:48,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:28:48,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 22:28:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:48,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 22:28:48,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:28:48,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 22:28:48,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 22:28:48,651 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 22:28:48,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-06 22:28:48,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 22:28:48,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-06 22:28:48,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:48,696 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:28:48,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:48,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207216302] [2021-12-06 22:28:48,696 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:28:48,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368277574] [2021-12-06 22:28:48,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368277574] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:28:48,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:28:48,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:28:48,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577785547] [2021-12-06 22:28:48,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:28:48,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:28:48,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:48,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:28:48,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:28:48,700 INFO L87 Difference]: Start difference. First operand 1175 states and 2221 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-12-06 22:28:50,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:28:50,644 INFO L93 Difference]: Finished difference Result 2292 states and 4372 transitions. [2021-12-06 22:28:50,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:28:50,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2021-12-06 22:28:50,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:28:50,658 INFO L225 Difference]: With dead ends: 2292 [2021-12-06 22:28:50,658 INFO L226 Difference]: Without dead ends: 2290 [2021-12-06 22:28:50,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 22:28:50,660 INFO L933 BasicCegarLoop]: 2675 mSDtfsCounter, 1185 mSDsluCounter, 5967 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 8642 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-06 22:28:50,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1685 Valid, 8642 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1745 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-06 22:28:50,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2021-12-06 22:28:50,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1181. [2021-12-06 22:28:50,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 668 states have (on average 1.8293413173652695) internal successors, (1222), 1175 states have internal predecessors, (1222), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-12-06 22:28:50,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 2228 transitions. [2021-12-06 22:28:50,907 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 2228 transitions. Word has length 7 [2021-12-06 22:28:50,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:28:50,907 INFO L470 AbstractCegarLoop]: Abstraction has 1181 states and 2228 transitions. [2021-12-06 22:28:50,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-12-06 22:28:50,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 2228 transitions. [2021-12-06 22:28:50,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 22:28:50,908 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:28:50,909 INFO L514 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] [2021-12-06 22:28:50,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:28:51,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:51,109 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-06 22:28:51,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:51,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1931275711, now seen corresponding path program 1 times [2021-12-06 22:28:51,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:51,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330046591] [2021-12-06 22:28:51,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:51,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:51,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:51,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:51,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330046591] [2021-12-06 22:28:51,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330046591] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:28:51,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:28:51,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:28:51,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423698040] [2021-12-06 22:28:51,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:28:51,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:28:51,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:51,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:28:51,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:28:51,165 INFO L87 Difference]: Start difference. First operand 1181 states and 2228 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:28:51,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:28:51,793 INFO L93 Difference]: Finished difference Result 3322 states and 6406 transitions. [2021-12-06 22:28:51,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 22:28:51,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-12-06 22:28:51,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:28:51,808 INFO L225 Difference]: With dead ends: 3322 [2021-12-06 22:28:51,808 INFO L226 Difference]: Without dead ends: 2249 [2021-12-06 22:28:51,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:28:51,813 INFO L933 BasicCegarLoop]: 2696 mSDtfsCounter, 1089 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 7043 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 22:28:51,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1589 Valid, 7043 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 22:28:51,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2021-12-06 22:28:52,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 1181. [2021-12-06 22:28:52,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 668 states have (on average 1.8278443113772456) internal successors, (1221), 1175 states have internal predecessors, (1221), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-12-06 22:28:52,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 2227 transitions. [2021-12-06 22:28:52,047 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 2227 transitions. Word has length 44 [2021-12-06 22:28:52,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:28:52,047 INFO L470 AbstractCegarLoop]: Abstraction has 1181 states and 2227 transitions. [2021-12-06 22:28:52,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:28:52,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 2227 transitions. [2021-12-06 22:28:52,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 22:28:52,049 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:28:52,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:52,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 22:28:52,049 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-06 22:28:52,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:52,049 INFO L85 PathProgramCache]: Analyzing trace with hash 305892652, now seen corresponding path program 1 times [2021-12-06 22:28:52,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:52,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058419555] [2021-12-06 22:28:52,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:52,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:52,113 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:28:52,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464664615] [2021-12-06 22:28:52,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:52,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:52,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:52,115 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:28:52,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 22:28:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:52,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 1532 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:28:52,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:28:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:52,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:28:52,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:52,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058419555] [2021-12-06 22:28:52,479 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:28:52,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464664615] [2021-12-06 22:28:52,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464664615] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:28:52,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:28:52,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 22:28:52,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282161490] [2021-12-06 22:28:52,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:28:52,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:28:52,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:52,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:28:52,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:28:52,481 INFO L87 Difference]: Start difference. First operand 1181 states and 2227 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:28:52,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:28:52,553 INFO L93 Difference]: Finished difference Result 2375 states and 4477 transitions. [2021-12-06 22:28:52,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:28:52,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-12-06 22:28:52,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:28:52,565 INFO L225 Difference]: With dead ends: 2375 [2021-12-06 22:28:52,565 INFO L226 Difference]: Without dead ends: 1202 [2021-12-06 22:28:52,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:28:52,572 INFO L933 BasicCegarLoop]: 2201 mSDtfsCounter, 9 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4387 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:28:52,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 4387 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:28:52,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2021-12-06 22:28:52,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1201. [2021-12-06 22:28:52,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 688 states have (on average 1.8037790697674418) internal successors, (1241), 1195 states have internal predecessors, (1241), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-12-06 22:28:52,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 2247 transitions. [2021-12-06 22:28:52,751 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 2247 transitions. Word has length 57 [2021-12-06 22:28:52,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:28:52,751 INFO L470 AbstractCegarLoop]: Abstraction has 1201 states and 2247 transitions. [2021-12-06 22:28:52,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:28:52,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 2247 transitions. [2021-12-06 22:28:52,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 22:28:52,753 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:28:52,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:52,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 22:28:52,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-06 22:28:52,954 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-06 22:28:52,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:52,954 INFO L85 PathProgramCache]: Analyzing trace with hash 815365742, now seen corresponding path program 1 times [2021-12-06 22:28:52,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:52,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640851285] [2021-12-06 22:28:52,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:52,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:53,012 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:28:53,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717775661] [2021-12-06 22:28:53,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:53,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:53,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:53,013 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:28:53,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 22:28:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:53,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 1534 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:28:53,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:28:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:53,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:28:53,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:53,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640851285] [2021-12-06 22:28:53,380 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:28:53,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717775661] [2021-12-06 22:28:53,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717775661] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:28:53,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:28:53,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:28:53,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299410144] [2021-12-06 22:28:53,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:28:53,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:28:53,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:53,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:28:53,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:28:53,382 INFO L87 Difference]: Start difference. First operand 1201 states and 2247 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:28:53,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:28:53,457 INFO L93 Difference]: Finished difference Result 2384 states and 4476 transitions. [2021-12-06 22:28:53,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 22:28:53,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-12-06 22:28:53,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:28:53,465 INFO L225 Difference]: With dead ends: 2384 [2021-12-06 22:28:53,465 INFO L226 Difference]: Without dead ends: 1191 [2021-12-06 22:28:53,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:28:53,470 INFO L933 BasicCegarLoop]: 2203 mSDtfsCounter, 1196 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 4914 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:28:53,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1699 Valid, 4914 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:28:53,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2021-12-06 22:28:53,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1187. [2021-12-06 22:28:53,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 674 states have (on average 1.8100890207715135) internal successors, (1220), 1181 states have internal predecessors, (1220), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-12-06 22:28:53,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 2226 transitions. [2021-12-06 22:28:53,605 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 2226 transitions. Word has length 57 [2021-12-06 22:28:53,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:28:53,606 INFO L470 AbstractCegarLoop]: Abstraction has 1187 states and 2226 transitions. [2021-12-06 22:28:53,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:28:53,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 2226 transitions. [2021-12-06 22:28:53,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 22:28:53,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:28:53,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:53,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 22:28:53,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:53,810 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-06 22:28:53,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:53,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1455665376, now seen corresponding path program 1 times [2021-12-06 22:28:53,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:53,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186960706] [2021-12-06 22:28:53,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:53,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:53,992 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:28:53,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132006298] [2021-12-06 22:28:53,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:53,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:53,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:53,993 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:28:53,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 22:28:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:54,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 1520 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 22:28:54,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:28:54,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:54,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:28:54,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:54,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186960706] [2021-12-06 22:28:54,473 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:28:54,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132006298] [2021-12-06 22:28:54,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132006298] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:28:54,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:28:54,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 22:28:54,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963241458] [2021-12-06 22:28:54,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:28:54,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:28:54,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:54,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:28:54,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:28:54,475 INFO L87 Difference]: Start difference. First operand 1187 states and 2226 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:28:54,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:28:54,573 INFO L93 Difference]: Finished difference Result 3460 states and 6557 transitions. [2021-12-06 22:28:54,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:28:54,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-12-06 22:28:54,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:28:54,588 INFO L225 Difference]: With dead ends: 3460 [2021-12-06 22:28:54,588 INFO L226 Difference]: Without dead ends: 2281 [2021-12-06 22:28:54,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:28:54,593 INFO L933 BasicCegarLoop]: 2762 mSDtfsCounter, 1078 mSDsluCounter, 2194 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 4956 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:28:54,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1580 Valid, 4956 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:28:54,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2021-12-06 22:28:54,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 2277. [2021-12-06 22:28:54,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 1264 states have (on average 1.8441455696202531) internal successors, (2331), 2271 states have internal predecessors, (2331), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2021-12-06 22:28:54,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 4337 transitions. [2021-12-06 22:28:54,847 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 4337 transitions. Word has length 57 [2021-12-06 22:28:54,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:28:54,848 INFO L470 AbstractCegarLoop]: Abstraction has 2277 states and 4337 transitions. [2021-12-06 22:28:54,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:28:54,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 4337 transitions. [2021-12-06 22:28:54,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-06 22:28:54,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:28:54,849 INFO L514 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] [2021-12-06 22:28:54,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 22:28:55,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:55,051 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-06 22:28:55,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:55,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1888458446, now seen corresponding path program 1 times [2021-12-06 22:28:55,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:55,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990708830] [2021-12-06 22:28:55,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:55,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:55,118 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:28:55,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2021232513] [2021-12-06 22:28:55,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:55,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:55,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:55,120 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:28:55,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56ce11-ec80-424d-b5b3-b3d09f282b31/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 22:28:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:55,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 133 conjunts are in the unsatisfiable core [2021-12-06 22:28:55,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:28:55,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 22:28:55,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 22:28:55,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 22:28:55,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-12-06 22:28:55,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 22:28:55,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-06 22:28:55,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 22:28:55,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-06 22:28:55,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 22:28:55,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-06 22:28:55,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 22:28:55,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-06 22:28:55,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 22:28:55,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-06 22:28:55,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 22:28:55,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 22:28:55,896 INFO L354 Elim1Store]: treesize reduction 60, result has 34.1 percent of original size [2021-12-06 22:28:55,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 51 [2021-12-06 22:28:55,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-06 22:28:55,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-12-06 22:29:09,183 INFO L244 Elim1Store]: Index analysis took 526 ms